Greenlee F20 Portable Power Unit - Serial GFM User manual

INSTRUCTION MANUAL

Read and understand all of the instructions and

safety information in this manual before operating

or servicing this tool.

Register this product at www.greenlee.com

F20

Portable Power Unit

Serial Code GNZ

Español ............... 21

Français .............. 41

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

2

Safety

Safety is essential in the use and maintenance of

Greenlee Utility tools and equipment. This instruction

manual and any markings on the tool provide informa-

tion for avoiding hazards and unsafe practices related to

the use of this tool. Observe all of the safety information

provided.

Purpose of this Manual

This manual is intended to familiarize all personnel with

the safe operation and maintenance procedures for the

Greenlee Utility F20 Portable Power Unit (50458957).

Keep this manual available to all personnel.

Replacement manuals are available upon request

at no charge at www.greenlee.com.

Other Publications

Tool Owners/Users

SAE Standard J1273 (Hose and Hose Assemblies):

Publication 99930323

Do not discard this product or throw away!

For recycling information, go to www.greenlee.com.

All specications are nominal and may change as design

improvements occur. Greenlee Textron Inc. shall not be liable for

damages resulting from misapplication or misuse of its products.

KEEP THIS MANUAL

Table of Contents

Description .................................................................... 2

Safety ............................................................................ 2

Purpose of this Manual ................................................. 2

Other Publications ......................................................... 2

Important Safety Information ..................................... 3-4

Identication .................................................................. 5

Specications ................................................................ 6

Hose Connections ......................................................... 7

Operation .................................................................... 8-9

Maintenance ........................................................... 10-12

Troubleshooting ...................................................... 13-15

Service ......................................................................... 16

Illustrations and Parts List ...................................... 16-20

Description

The F20 Portable Power Unit is a compact unit provid-

ing a variable ow of 18.9 to 37.9 l/min (5 to 10 gpm)

and a maximum pressure of 138 bar (2000 psi). It is a

lightweight power source intended for use with open-

center system hydraulic tools. HTMA couplers are

provided for tool connection.

Its compact size and light weight allow use at remote

work sites that might not be accessible by a larger

power unit or hydraulic truck. The ability to get close to

the work area allows the use of shorter hydraulic hoses,

increasing tool efciency.

The simple design of the hydraulic circuit and reli-

able Honda gasoline-powered engine ensure years of

trouble-free operation, when serviced according to the

recommended maintenance schedule. Other features

include a large capacity oil cooler, sight level gauges,

engine hour/rpm meter, pneumatic tires, foldaway

handles, and a sealed lead acid battery.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

3

IMPORTANT SAFETY INFORMATION

SAFETY

ALERT

SYMBOL

This symbol is used to call your attention to hazards

or unsafe practices which could result in an injury or

property damage. The signal word, dened below,

indicates the severity of the hazard. The message

after the signal word provides information for pre-

venting or avoiding the hazard.

Immediate hazards which, if not avoided, WILL result

in severe injury or death.

Hazards which, if not avoided, COULD result in

severe injury or death.

Hazards or unsafe practices which, if not avoided,

MAY result in injury or property damage.

Read and understand all of the

instructions and safety information

in this manual before operating or

servicing this tool.

Failure to observe this warning will

result in severe injury or death.

Fuel is ammable and explosive.

• Stop engine before lling fuel tank.

• Do not ll fuel tank when engine

is hot.

• Do not ll fuel tank near an open

ame, sparks, or when smoking.

Failure to observe this warning will

result in severe injury or death.

Do not run power unit engine in a

conned area.

Engine exhaust fumes are toxic.

If inhaled, exhaust fumes could

cause injury or death.

Skin injection hazard:

• Do not use hands to check for

leaks.

• Do not hold hose or couplers

while

the hydraulic system is

pressurized.

• Depressurize the hydraulic system

before servicing or disconnecting

hoses.

Oil under pressure easily punctures

skin, causing serious injury, gan-

grene, or death. If you are injured by

escaping oil, seek medical attention

immediately.

Wear eye protection when operating

or servicing this tool.

Failure to wear eye protection could

result in serious eye injury from

ying debris or hydraulic oil.

Wear hearing protection when using

this tool.

Long-term exposure to high noise

levels could result in hearing

damage.

Do not disconnect tool, hoses or ttings while the

power source is running or if the hydraulic uid is

hot. Hot hydraulic uid could cause serious burns.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

4

• Do not operate power unit without

safety guards in place.

• Keep all parts of the body and

loose clothing away from the

engine fan.

Engine, exhaust system, and other

components will be hot during and

after operation. Use care when

working around the power unit. Hot

surfaces could cause serious burns.

Do not let power unit engine run unattended.

Monitor the engine so that it can be shut down

immediately in case of a malfunction.

Failure to observe this warning could result in severe

injury or death.

Use the lifting eye and appropriate lifting equipment.

Make sure all components used to lift this power

unit are rated for 159 kg (350 lb) and are securely

attached to the frame of the power unit. Inadequate

components may fail and cause the power unit to

fall, resulting in injury or property damage.

• Inspect the hydraulic hoses and couplings every

operating day. Repair or replace if leakage, crack-

ing, wear, or damage is evident. Damaged hoses

or couplers may fail, resulting in injury or property

damage.

• Use this power source for manufacturer’s intended

purpose only. Use other than that which is

described in this manual may result in injury or

property damage.

• Make sure that all bystanders are clear of the work

area when handling, starting, and operating the

power unit. Nearby personnel may be injured by

ying parts in the event of a tool malfunction.

Hydraulic oil may cause skin irritation.

• Handle the tool and hoses with care to prevent

skin contact with hydraulic oil.

• In case of accidental skin contact with hydraulic

oil, wash the affected area immediately to remove

the oil.

Failure to observe these precautions may result in

injury.

Procedure for connecting or disconnecting hydraulic

hoses, ttings or components:

1. Rotate the ow control knob to the OFF

position.

2. Switch the engine OFF.

3. Follow the sequence under “Hose Connections”

to prevent pressure buildup. In case some

pressure has built up, loosen hoses, ttings, or

components slowly.

Emergency stop procedure: Switch the engine OFF.

Note: Keep all decals clean and legible, and replace

when necessary.

IMPORTANT SAFETY INFORMATION

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

5

Identiﬁcation

F20 Portable Power Unit

1. Gasoline Engine, 20 hp

2. Hydraulic Pump

3. Handle

4. Hydraulic Oil Filter

5. Fuel Tank

6. Hydraulic Reservoir

7. Oil Cooler

8. Flow ON / OFF Valve

9. Tool Connection—Pressure

10. Tool Connection—Return

11. Battery

12. Lifting Bracket

13. Hour Meter

14. Hydraulic Oil Fill Cap

15. Hydraulic Oil Fluid Level Gauge

8

12

3

1

13

6

4

5

2

7

10

14

15

11

2

8

9

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

6

Speciﬁcations

Hydraulic Schematic

TYPICAL

TOOL

PRESSURE

PORT (P)

RETURN

PORT (T)

RETURN

PORT (T)

PRESSURE

PORT (P)

CONTROL

VALVE

RELIEF

VALVE

(2000 psi)

138 bar

OIL

COOLER

FILTER

(10 micron)

ENGINE

PUM P

POWER

UNIT

Recommended Hydraulic Fluids

Any non-detergent, petroleum-based, hydraulic uid

which meets the following specications or HTMA

specications may be used.

S.U.S. @

38 °C (100 °F ) ..............................................140 to 225

99 °C (210 °F) ............................................ 40 minimum

Flash Point ................................170 °C (340 °F) minimum

Pour Point .................................. -34 °C (-30 °F) minimum

Portable Power Unit

Weight (dry) .............................................. 118 kg (259 lb)

Height

Handles up .............................................102 cm (40 in)

Handles down ..........................................81 cm (32 in)

Length

Handles up .............................................107 cm (42 in)

Handles down ..........................................86 cm (34 in)

Width ............................................................79 cm (31 in)

Fuel Capacity .............................................12.5 l (3.3 gal)

Hydraulic Oil Capacity ................................ 11.7 l (3.1 gal)

Rated Flow (variable) ............19 to 38 l/min (5 to 10 gpm)

Operating Pressure .............................. 138 bar (2000 psi)

Type of Hydraulic System .............................Open-center

Pressure Port

(3/4-16 SAE O-ring Boss) ............. HTMA male coupler

Return Port

(3/4-16 SAE O-ring Boss) .......... HTMA female coupler

Filtration ............................................. 10 micron (nominal)

Battery—Automotive Type (sealed lead acid battery)

Honda Air-cooled Gasoline Engine Model GX630

Horsepower (maximum) ......................20 hp @ 3600 rpm

Torque (maximum) ........................... 44.13 Nm (32.5 ft-lb)

@ 2500 rpm

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

7

Hose Connections

Do not disconnect tool, hoses, or ttings while

the power unit is running or if the hydraulic uid

is hot. Hot hydraulic uid could cause serious burns.

Failure to observe this warning could result in severe

injury.

Connecting Hoses

1. Stop the power unit hydraulic ow.

2. Connect the return (tank) hose from the power unit

port to the tool return port (T).

Note: Return (tank) hose connection should always

be connected before pressure (supply) hose con-

nection to prevent pressure buildup inside the tool.

3. Connect the pressure (supply) hose from the power

unit pressure port to the tool pressure port (P).

Disconnecting Hoses

1. Stop the power unit hydraulic ow.

2.

Disconnect the pressure (supply) hose from the

power unit pressure port to the tool pressure

port(P).

Note: Pressure (supply) hose connection should

always be disconnected before return (tank)

hose connection to prevent pressure buildup inside

the tool.

3. Disconnect the return (tank) hose from the power

unit return port to the tool return port (T).

4. To prevent contamination, always install dust caps

over the hydraulic ports of the tool, hoses, and

power unit when disconnected.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

8

Operation

Fuel is ammable and explosive.

• Stop engine before lling fuel tank.

• Do not ll fuel tank when engine

is hot.

• Do not ll fuel tank near an open

ame, sparks, or when smoking.

Failure to observe this warning will

result in severe injury or death.

Do not run power unit engine in a

conned area.

Engine exhaust fumes are toxic.

If inhaled, exhaust fumes could

cause injury or death.

Skin injection hazard:

• Do not use hands to check for

leaks.

• Do not hold hose or couplers

while

the hydraulic system is

pressurized.

• Depressurize the hydraulic system

before servicing or disconnecting

hoses.

Oil under pressure easily punctures

skin, causing serious injury, gan-

grene, or death. If you are injured by

escaping oil, seek medical attention

immediately.

Wear eye protection when operating

or servicing this tool.

Failure to wear eye protection could

result in serious eye injury from

ying debris or hydraulic oil.

Wear hearing protection when using

this tool.

Long-term exposure to high noise

levels could result in hearing

damage.

Do not disconnect tool, hoses or ttings while the

power source is running or if the hydraulic uid is

hot. Hot hydraulic uid could cause serious burns.

• Do not operate power unit without

safety guards in place.

• Keep all parts of the body and

loose clothing away from the

engine fan.

Engine, exhaust system, and other

components will be hot during and

after operation. Use care when

working around the power unit. Hot

surfaces could cause serious burns.

Do not let power unit engine run unattended.

Monitor the engine so that it can be shut down

immediately in case of a malfunction.

Failure to observe this warning could result in severe

injury or death.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

9

Operation (cont’d)

Position the power unit on rm level ground.

Pre-Start

1. Check engine oil level. Running the engine with a

low oil level can cause engine damage. The oil alert

system will automatically stop the engine before the

engine oil level falls below safe limits. However, to

avoid the inconvenience of an unexpected shut-

down, always check the engine oil level before

startup.

Refer to the Engine Owner’s Manual for correct oil

type and checking instructions.

2. Check fuel level. Refer to the Engine Owner’s

Manual for fuel recommendations.

3. Check hydraulic reservoir oil level. Fill to FULL level

as shown on hydraulic uid level decal. Refer to

“Recommended Hydraulic Fluids” for correct

hydraulic uid.

4. Check the air lter. A dirty air lter will restrict

air ow to the carburetor, reducing engine

performance.

5. Verify that all current maintenance has been

performed on the power unit. Refer to the

“Maintenance” section.

Starting the Power Unit

1. If the fuel tank is equipped with a fuel valve, be

sure the valve is in the OPEN or ON position before

attempting to start the engine.

2. To start a cold engine,

pull the choke knob

out to the CLOSED

position. To start a

warm engine, leave

the choke knob in the

OPEN position.

3. Move the throttle lever

away from the SLOW

position, about 1/3 of

the way to the FAST

position.

4. Turn the engine switch

to the ON position.

5. Operate the starter by turning the key to the START

position and holding it there until the engine starts.

If the engine fails to start within 5 seconds, release

the key and wait at least ten seconds before operat-

ing the starter again.

Note: Using the elec-

tric starter for more

than ﬁve seconds at a

time will overheat the

starter motor and can

damage it.

6. When the engine

starts, release the key,

allowing it to return to

the ON position.

7. If the choke knob

has been pulled to

the CLOSED position

to start the engine,

gradually push it to the

OPEN position as the

engine warms up.

Hour Meter

After the engine is started, the hour meter counts the

elapsed time of the engine in use. It will not count the

elapsed time of the engine operation by just turning the

engine switch ON.

Stopping the Engine

To stop the engine in an emergency, simply turn the

engine switch to the OFF position. Under normal condi-

tions, use the following procedure.

1. Move the throttle lever to the SLOW position.

2. Turn the engine switch to the OFF position.

3. Turn the fuel valve to the CLOSED or OFF position.

Lifting the Power Unit

Use the lifting eye and appropriate lifting equipment.

Make sure all components used to lift this power

unit are rated for 159 kg (350 lb) and are securely

attached to the frame of the power unit. Inadequate

components may fail and cause the power unit to

fall, resulting in injury or property damage.

Stop the power unit engine before lifting. Take care

when attaching the lifting device (chain, strap, etc.) to

the lifting eye so as not to damage the power unit.

OFF

MIN.

START

ON

ENGINE SW.

CHOKE

MAX.

HOURS 1/10

Choke Knob:

Out = Closed

In = Open

Throttle Lever:

Up = Fast

Down = Slow

OFF

MIN.

START

ON

ENGINE SW.

CHOKE

MAX.

HOURS 1/10

Engine

Switch

Hour

Meter

Off

Start

On

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

10

Maintenance

Depressurizing Hydraulic System

Skin injection hazard:

• Do not use hands to check for

leaks.

• Do not hold hose or couplers

while

the hydraulic system is

pressurized.

• Depressurize the hydraulic system

before servicing or disconnecting

hoses.

Oil under pressure easily punctures

skin, causing serious injury, gan-

grene, or death. If you are injured by

escaping oil, seek medical attention

immediately.

Hydraulic system must be depressurized when perform-

ing maintenance or repair on the power unit hydraulic

system. Depressurizing the hydraulic system also makes

tool hose connections/disconnections easier.

1. Stop power unit engine.

2. Move ow ON/OFF lever to the ON position.

System will be depressurized.

3. Before restarting power unit engine, move ow

ON/OFF lever to the OFF position.

Fuel is ammable and explosive.

• Stop engine before lling fuel tank.

• Do not ll fuel tank when engine

is hot.

• Do not ll fuel tank near an open

ame, sparks, or when smoking.

Failure to observe this warning will

result in severe injury or death.

Do not run power unit engine in a

conned area.

Engine exhaust fumes are toxic.

If inhaled, exhaust fumes could

cause injury or death.

Do not disconnect tool, hoses or ttings while the

power source is running or if the hydraulic uid is

hot. Hot hydraulic uid could cause serious burns.

• Inspect the hydraulic hoses and couplings every

operating day. Repair or replace if leakage, crack-

ing, wear, or damage is evident. Damaged hoses

or couplers may fail, resulting in injury or property

damage.

• Use this power source for manufacturer’s intended

purpose only. Use other than that which is

described in this manual may result in injury or

property damage.

• Make sure that all bystanders are clear of the work

area when handling, starting, and operating the

power unit. Nearby personnel may be injured by

ying parts in the event of a tool malfunction.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

11

Maintenance (cont’d)

The service life of the power unit will be maximized

by proper care and maintenance. The maintenance

schedule below is recommended.

Note: Change engine oil after the ﬁrst 5 hours of opera-

tion. Thereafter, change engine oil according to

the maintenance schedule below.

Every 5 Hours

1. Check engine crankcase oil level. Fill if necessary.

Refer to the Engine Owner’s Manual.

2. Check fuel tank level. Fill if necessary.

Refer to the Engine Owner’s Manual.

3. Check hydraulic reservoir oil level. Fill to FULL mark

on sight gauge. Do not overll reservoir. Refer to the

“Recommended Hydraulic Fluids” section.

Every 10 Hours

1. Wipe all power unit surfaces clean of grease,

dirt, and foreign material.

2. Inspect the hydraulic system hoses and ttings

for signs of leaks, cracks, wear, or damage.

Replace if necessary.

Every 25 Hours

Service engine air cleaner/pre-cleaner. Refer to the

Engine Owner’s Manual.

Every 50 Hours

Change engine crankcase oil and oil lter. Refer to the

Engine Owner’s Manual.

Every 100 Hours or Once Yearly

1. Drain hydraulic reservoir oil. Clean and ush res-

ervoir. Change hydraulic oil lter. Fill reservoir with

new, clean hydraulic oil. Refer to “Recommended

Hydraulic Fluids” section. Operate power unit to

circulate oil through the hydraulic system. Stop

power unit. Recheck hydraulic oil level. Fill reservoir

to the FULL mark on the sight gauge. Do not overll

reservoir.

2. Service engine air cleaner cartridge. Refer to the

Engine Owner’s Manual.

3. Perform a detailed inspection of the system

hoses and ttings as stated in 99930323—

SAE Standard J1273. Replace the hoses and/or t-

tings if necessary.

Sight Gauge Location

FLUID LEVEL

ADD FLUID OK FULL

Sight Gauge

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

12

Maintenance (cont’d)

Battery Maintenance and Replacement

Battery is a utility style, sealed lead acid type. Clean

battery terminals and cable clamps when required. After

cleaning, coat battery terminals and cable clamps with

grease or other suitable product to reduce corrosion.

When battery replacement becomes necessary, it is

recommended that replacement battery should meet or

exceed original battery specications; amps, cranking

power, etc.

When disconnecting battery cables, remove the black

cable rst from the negative (–) battery post and then

the red cable from the positive (+) battery post.

When connecting the battery cables, attach the red

cable to the positive (+) battery post rst and the black

cable to the negative (–) battery post last.

Pneumatic Tires

Inate power unit tires to the recommended pressure

printed on the sidewalls of the tires. Do not exceed

tire manufacturer’s recommended maximum pres-

sure printed on the sidewalls of the tires or rim

manufacturer’s recommended maximum pressure

stamped on the rim, whichever is lower.

Battery

Stop engine when checking battery

electrolyte level. Do not check or

ll battery electrolyte level near

an open ame, sparks, or when

smoking. Battery fumes are am-

mable and explosive, and if ignited

will result in severe injury or death.

When working on or around the battery:

• Remove jewelry, wristwatches and any other con-

ductive items. The current produced by the battery

could cause severe burns.

• Wear eye protection and gloves and handle the

battery carefully. Contact with battery acid could

cause severe burns or blindness.

Failure to observe these warnings could result in

severe injury or death.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

13

Troubleshooting

Before You Begin

1. Any tool used with this power unit must be an

open-center system type tool.

2. Verify that the pressure and return hoses are con-

nected properly to the power unit and tool ports.

3. Power unit reservoir must be lled to the FULL mark

with hydraulic uid.

4. Start the power unit hydraulic oil ow. All separate

shut-off devices must be opened (ON/OFF valves,

etc.)

5. After verifying all of the above, check the tool to see

if it operates.

If the tool does not operate, it will be necessary

to pinpoint the power unit, tool, or hoses and the

problem area. The following steps will help to deter-

mine the problem area.

Determine the Problem Area

1. Stop the power unit hydraulic oil ow. Disconnect

the existing tool from the hoses and power unit.

2. Connect a known working tool to the hoses and

power unit. Refer to the tool’s operator’s manual

for correct hookup procedure. Start the power unit

hydraulic oil ow.

• If the known working tool operates, the problem

is in the disconnected tool. Refer to the tool

operator’s manual for troubleshooting.

• If the known working tool does not operate, the

problem is likely to be in the hoses or the power

unit. Proceed to Step 3.

3. Stop the power unit hydraulic oil ow. Disconnect

the existing hoses from the known working tool and

power unit.

4. Connect a different set of hoses to the known

working tool and power unit. Start the power unit

hydraulic oil ow.

• If the known working tool operates with the

different set of hoses, the problem is in the

disconnected hoses.

• If the known working tool does not operate,

the problem is in the power unit. Refer to the

trouble shooting charts in this manual.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

14

Troubleshooting (cont’d)

Problem Probable Cause Probable Remedy

Engine does not turn over. Battery weak or dead. Recharge or replace battery.

Battery cables corroded. Clean battery cable terminals or

replace cables.

Electrical short, broken wire, or loose

connection.

Check wires and connections.

Repair or replace.

Engine starter inoperative. Repair or replace starter. Refer to the

engine operator’s manual.

Engine turns over, but does not start. No fuel in tank. Fill fuel tank.

Flow ON/OFF handle in the ON

position.

Move handle to the OFF position.

Electrical short, broken wire, or loose

connection.

Check wires and connections.

Repair or replace.

Refer to the engine operator’s

manual.

Engine lacks power, runs rough,

backres, etc.

Refer to the engine operator’s

manual.

Tool used with power unit is

inoperative.

Flow ON/OFF valve in the OFF

position.

Move ow ON/OFF valve to ON

position.

Tool is a closed-center system type. Use only open-center system tools.

No hydraulic uid in system or uid

level low.

Check uid level. Fill to FULL mark.

Check system for leaks.

Incorrect hydraulic uid viscosity. Use uid viscosity recommended.

Refer to “Recommended Hydraulic

Fluids.”

Hydraulic lter needs service. Replace hydraulic lter.

Power unit components (pump,

valve etc.) worn or damaged.

Repair or replace components.

Engine output insufcient. Engine

needs adjustment, tune-up, etc.

Refer to the engine operator’s

manual.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

15

Troubleshooting (cont’d)

Problem Probable Cause Probable Remedy

Tool used with power unit operates

erratically.

Hydraulic uid cold. Viscosity of oil may be too high at

start of tool operation. Allow oil to

warm to operating temperature.

Actuating tool intermittently will

reduce time required to warm oil to

an efcient operating temperature.

Hydraulic uid level low. Check uid level. Fill to FULL mark.

Check system for leaks.

Incorrect hydraulic uid viscosity. Use uid viscosity recommended.

Refer to “Recommended Hydraulic

Fluids.”

Air in system. Check pump suction line for damage

or loose clamps. Tighten clamps or

replace components if necessary.

Fillreservoir.

Hydraulic oil ow (gpm) incorrect for

tool being used.

Adjust engine rpm to achieve correct

ow (gpm) for tool being used.

Hydraulic lter needs service. Replace hydraulic lter.

Power unit components (pump,

valve, etc.) worn or damaged.

Repair or replace components.

Engine output insufcient. Engine

needs adjustment, tune-up, etc.

Refer to the engine operator’s

manual.

Tool used with power unit feels hot. Hydraulic uid level low. Check uid level. Fill to FULL mark.

Check system for leaks.

Hydraulic uid viscosity too light. Use uid viscosity recommended.

Refer to “Recommended Hydraulic

Fluids.”

Hydraulic uid dirty. Drain reservoir, ush and ll with

clean uid. Change lter.

Hydraulic oil ow (gpm) incorrect for

tool being used.

Adjust engine rpm to achieve correct

ow (gpm) for tool being used.

Tool used with power unit operates

backward.

Hydraulic ow to tool reversed. Reverse ow to tool. Check for valve

in system that has reversed ow.

Check hoses for proper ow.

Hydraulic pressure and return lines

connected to incorrect power unit or

tool ports.

Disconnect hoses. Reverse couplers.

Reconnect hoses to proper power

unit and tool ports.

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

16

Service

Complete disassembly of the power unit is not neces-

sary or recommended. Any service requirements that

need to be addressed with the engine or its components

will be covered in the engine manufacturer’s Owner’s

Manual.

It is anticipated that only two other items could require

servicing on this unit—the hydraulic pump and the relief

valve. This section will cover the removal and replace-

ment of these items.

Relief Valve

If the system relief pressure settings cannot be adjusted

to obtain the maximum system pressure as identied in

Specications, the relief valve (80) needs to be removed

from the manifold block (83), and replaced.

Hydraulic Pump

Disassembly:

Loosen clamps (74) on suction hose (75). Loosen

elbow (76) and rotate to disconnect from suction hose.

Remove hose assembly (16) from discharge side of

pump. Remove cap screws (69) and washers (33),

holding pump onto pump adapter (86). Slide pump out

of coupling (85).

Assembly:

Slide pump (84) up into the coupling (85), lining up key

and key slot in pump shaft and coupling I.D. Install

washers (33) and cap screws (69) through pump ange

and into pump adapter (86) and tighten. Rotate elbow

(76) into suction hose (75) and tighten clamps (74) onto

reservoir tube and elbow. Install hose assembly (16)

onto the discharge side of the pump and tighten. Ensure

hose assembly does not touch other hoses or parts of

the power unit that could cause wear due to vibration.

Illustration—

Decal Locations

31

11

12

29

13

96

72

108

101

95

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

17

Illustration—F20

8

87

88

56

81

80

9

54

93

70

15

17

6

8

9

21

22

23

6

19

101

46

100

46

75

69

33

84

78

8

45

34

6

71

73

74

15

103

85

31

3

38

39

43

39

40

5

37

53

36

6

7

8

4

86

63

59

57

58

61

60

62

69

33

76

9

17

102

25

27

28,92

26

8

51

39

43

39

40

42

8

6

7

44

48

50

33

8

94

35

2

32

34

35

1

47

24

17

16

18

82

90

83

104

79

89

6

52

106

105

106

34

55

49

8

7

6

41

64

99

33

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

18

Parts List

Key Part No. Description Qty

1 50458680 Handle ....................................................................................................... 1

2 50458663 Plate, adapter ............................................................................................ 2

3 52055969 Engine, 20 hp ............................................................................................ 1

4 52055970 Mufer ....................................................................................................... 1

5 50458515 Bracket, lift ................................................................................................ 1

6 Screw, cap, 1/4-20 x 1-3/4, button head ................................................ 28

7 Washer, at, 1/4 ...................................................................................... 36

8 Nut, 1/4-20, Nylok ................................................................................... 30

9 52001420 Clamp, hose .............................................................................................. 4

11 50455206 Decal, warning .......................................................................................... 1

12 50462300 Decal, ON/OFF .......................................................................................... 1

13 50462466 Decal, identication F20 ........................................................................... 1

15 50456247 Hose, cooler to lter .................................................................................. 2

16 50458590 Hose assembly, pump .............................................................................. 1

17 52001427 Elbow, 90° ................................................................................................. 3

18 52001426 Cap, gas .................................................................................................... 1

19 50458744 Tank, fuel ................................................................................................... 1

21 50462806 Elbow, 90° ................................................................................................. 1

22 52001423 Fitting, hose .............................................................................................. 1

23 52001429 Clamp, hose .............................................................................................. 2

24 Plug, 1/2 NPT, square head ...................................................................... 1

25 50458523 Cartridge, lter .......................................................................................... 1

26 50458507 Reservoir, hydraulic ................................................................................... 1

27 50458531 Adapter, lter cartridge ............................................................................. 1

28 52055981 Hose, gas line, 33" .................................................................................... 1

29 50462407 Decal, knob ............................................................................................... 1

30 50415870 Wrap, tie .................................................................................................... 7

31 50458710 Decal, rpm vs gpm .................................................................................... 1

32 Screw, cap, 5/16-18 x .87 hex head ......................................................... 6

33 Washer, 3/8 at ....................................................................................... 14

34 Nut, 5/16 Nylok ....................................................................................... 12

35 90553497 Knob .......................................................................................................... 2

36 50438093 Meter, tach/hour ........................................................................................ 1

37 Screw, cap, #8-32 x .500 socket head ..................................................... 2

38 50458671 Frame, right ............................................................................................... 1

39 Washer, at, 3/4 ........................................................................................ 6

40 90552989 Ring, retaining ........................................................................................... 2

41 50462474 Tube, side .................................................................................................. 2

42 50458752 Axle ........................................................................................................... 1

43 90553730 Wheel ........................................................................................................ 2

44 50458655 Base, frame ............................................................................................... 1

45 50458485 Foot, front ................................................................................................. 2

46 90553489 Pad, foot ................................................................................................... 2

47 Screw, cap, 1/4-20 x 1-1/4 hex head ....................................................... 2

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

19

Parts List (cont’d)

Key Part No. Description Qty

48 Screw, cap, 3/8-16 x 2.00 hex head ......................................................... 4

49 50462814 Spacer, threaded ....................................................................................... 2

50 Nut, 3/8-16 Nylok ...................................................................................... 4

51 50458698 Frame, left ................................................................................................. 1

52 50458604 Shroud, fan................................................................................................ 1

53 Nut, #8-32, Nylok ...................................................................................... 2

54 50458477 Fan, cooler ................................................................................................ 1

55 50458450 Cooler, hydraulic ....................................................................................... 1

56 50458612 Shroud, control panel ................................................................................ 1

57 Screw, 1/4-20 x 3/4 hex head ................................................................... 2

58 Nut, 1/4-20 hex ......................................................................................... 2

59 90553470 Cover, battery terminal .............................................................................. 1

60 50458574 Cover, terminal .......................................................................................... 1

61 50458566 Cable unit, starter ...................................................................................... 1

62 50458558 Cable unit, ground .................................................................................... 1

63 91868254 Battery, 12V ............................................................................................... 1

64 50462822 Tie-down, 10" (battery) ............................................................................. 1

69 Screw, cap, 3/8-16 x 1.00 socket head .................................................... 6

70 90553748 Bracket, mounting ..................................................................................... 4

71 50458795 Cap, breather ............................................................................................ 1

72 50495356 Decal, hydraulic level ................................................................................ 1

73 50458426 Sight, hydraulic uid level ......................................................................... 1

74 52001424 Clamp, hose .............................................................................................. 2

75 50458620 Hose, suction ............................................................................................ 1

76 52001425 Elbow, 90° ................................................................................................. 1

78 50462849 Connector, straight .................................................................................... 1

79 50121413 Fitting, hose, 1/2 NPTF, 3/4-16 UNF ......................................................... 1

80 50419892 Valve, relief ................................................................................................ 1

81 90549252 Coupler, QD female, 3/4-16 SAE .............................................................. 1

82 90549236 Coupler, QD male, 3/4-16 SAE ................................................................. 1

83 50121421 Block, manifold ......................................................................................... 1

84 90550129 Pump ......................................................................................................... 1

85 50458760 Coupling .................................................................................................... 1

86 90550064 Adapter, pump .......................................................................................... 1

87 Screw, cap, 1/4-20 x 1/2 button head ...................................................... 2

88 Washer, split lock, 1/4 ............................................................................... 2

89 Plug, pipe, 1/8 ........................................................................................... 2

90 50458582 Valve, control ............................................................................................. 1

92 90553519 Cover, split cable 3/8" ............................................................................... 1

93 50489429 Mounting, cooler ....................................................................................... 4

94 Rectier (supplied with engine) ................................................................. 1

95 50489402 Decal, pressure ......................................................................................... 1

96 50489410 Decal, return .............................................................................................. 1

F20 Portable Power Unit

Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

20

Parts List (cont’d)

Key Part No. Description Qty

98 91870860 Connector, bullet-male .............................................................................. 1

99 90553756 Kit, nylon tie mounting (4 per kit) .............................................................. 1

100 50016792 Decal, hydraulic uid ................................................................................. 1

101 50016784 Decal, gasoline .......................................................................................... 1

102 50432869 Key ............................................................................................................ 1

103 50462830 Spark arrester ........................................................................................... 1

104 50121405 Connector, male ........................................................................................ 1

105 Screw, cap, 5/16-18 x 2-1/2 hex head ..................................................... 4

106 Washer, at, .312 x .750 x .06 ZP ............................................................. 8

107 91858003 Terminal end .............................................................................................. 1

108 52021541 Decal, WEEE compliance .......................................................................... 1

109 52000617 Tube, heat shrink ....................................................................................... 2

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Greenlee F20 Portable Power Unit - Serial GFM User manual

Greenlee F20 Portable Power Unit - Serial GFM User manual

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