Greenlee F20 Portable Power Unit - Serial GFM User manual
- Type
- User manual
INSTRUCTION MANUAL
99944510 REV 14 © 2011 Greenlee Textron Inc. 3/11
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 specications 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
Identication .................................................................. 5
Specications ................................................................ 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 efciency.
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, dened 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
conned 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 specications or HTMA
specications 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
conned 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
conned 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 overll 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 overll
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 specications; 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
Inate 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,
backres, 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 insufcient. 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 efcient 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.
Fillreservoir.
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 insufcient. 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 identied in
Specications, 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
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
2
32
34
35
1
47
24
17
16
18
82
90
83
104
79
89
6
52
106
105
106
34
55
49
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 Mufer ....................................................................................................... 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, identication 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 Rectier (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
- Type
- User manual
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