Central Hydraulics 07620 Assembly And Operating Instructions Manual

Brand: Central Hydraulics

Model: 07620

Type: Assembly And Operating Instructions Manual

2 TON SHOP CRANE

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www.harborfreight.com

2005 by Harbor Freight Tools

this manual or any artwork contained herein may be reproduced in any shape

or form without the express written consent of Harbor Freight Tools.

For technical questions and replacement parts, please call 1-800-444-3353

07620

Page 2SKU 07620

For technical questions, please call 1-800-444-3353

Speciﬁcations

Boom Length

54” (@ 2 Ton Setting) to

79” (@

Ton Setting)

Boom Height 26” to 104” (@

Ton Setting)

Overall Height 60”

Jack to Hook Length 26” to 52”

Minimum Base Size 61-

” L x 36” W (Storage only)

Lifting Capacity 2 Tons (4000 lb.)

Note: The Crane Boom can be adjusted in four positions

to accommodate 2 Tons, 1-1/2 Tons, 1 Ton, and

Ton.

Save This Manual

You will need the manual for the safety warnings and precautions, assembly instructions,

operating and maintenance procedures, parts list and diagram. Keep your invoice with this

manual. Write the invoice number on the inside of the front cover. Keep the manual and

invoice in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to

reduce the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

1. Keep work area clean. Cluttered areas invite injuries.

2. Observe work area conditions. Do not use machines in damp or wet locations.

Don’t expose to rain. Keep work area well lit.

3. Keep children away. Children must never be allowed in the work area. Do not let

them handle, or play on or around the Shop Crane.

4. Store idle equipment. When not in use, tools must be stored in a dry location to

inhibit rust. Always lock up tools and keep out of reach of children.

5. Use the right tool for the job. Do not attempt to force a small tool or attachment to

do the work of a larger industrial tool. There are certain applications for which this

tool was designed. It will do the job better and more safely at the rate for which it was

intended. Do not modify this tool and do not use this tool for a purpose for which it

was not intended.

6. Dress properly. Do not wear loose clothing or jewelry as they can be caught in

moving parts. Protective, electrically nonconductive clothes and nonskid footwear are

recommended when working. Wear restrictive hair covering to contain long hair. Wear

heavy work gloves when working.

7. Use eye protection. Always wear ANSI-approved impact safety goggles.

8. Do not overreach. Keep proper footing and balance at all times.

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9. Maintain tools with care. Keep tools clean for better and safer performance. Follow

instructions for lubricating and changing accessories.

10. Stay alert. Watch what you are doing, use common sense. Do not operate any tool

when you are tired.

11. Check for damaged parts. Before using any tool, any part that appears damaged

should be carefully checked to determine that it will operate properly and perform its

intended function. Check for alignment and binding of moving parts; any broken parts

or mounting ﬁxtures; and any other condition that may affect proper operation. Any

part that is damaged should be properly repaired or replaced by a qualiﬁed technician.

12. Replacement parts and accessories. When servicing, use only identical

replacement parts. Use of any other parts will void the warranty. Only use accessories

intended for use with this tool. Approved accessories are available from Harbor Freight

Tools.

13. Do not operate tool if under the inﬂuence of alcohol or drugs. Read warning

labels if taking prescription medicine to determine if your judgment or reﬂexes are

impaired while taking drugs. If there is any doubt, do not operate the tool.

14. Never exceed the maximum lifting capacity of 2 Tons (4,000 pounds).

NEVER EXCEED THE CAPACITY FOR INDIVIDUAL STAGE SETTINGS.

Beware of Dynamic Loading!

Swinging or allowing a load to suddenly jerk on the chain of the Shop Crane may

create, for a brief instant, an excess load, which may result in damage to the product,

damage to the load, SERIOUS PERSONAL INJURY, and/or DEATH.

15. Maintenance. For your safety, service and maintenance should be performed

regularly by a qualiﬁed technician.

16. Not to be used for aircraft purposes.

17. Do not attempt to move the Crane when under load. The Swivel Casters are not

designed to be rolled when the Crane is lifting a weight.

Warning: The warnings, cautions, and instructions discussed in this instruction manual

cannot cover all possible conditions and situations that may occur. It must be under-

stood by the operator that common sense and caution are factors which cannot be built

into this product, but must be supplied by the operator.

Unpacking

When unpacking, check to make sure that the all parts listed on page 8 are included. If any

parts are missing or broken, please call Harbor Freight Tools at the number on the cover of

this manual as soon as possible.

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Assembly

For safety and ease of assembly, use two people to assemble the Shop Crane.

1. Slide the Header (3) into the two Legs (1) as shown in FIGURE 1.

2. Using two Bolts (17), two Washers (18), and two Nuts (19), assemble the two Legs (1)

and Strut (2) as shown in FIGURE 1.

Leg (1)

Header (3)

Set Bolts

Long and Short

Extensions

(5 and 6)

FIGURE 1

FIGURE 2

Nut (16)

Washer (15)

Bolt (14)

Strut (2)

Using four Bolts (14), four Washers (15), and four Nuts (16) per Caster (4), assemble

the Casters (4) to the two Short Extensions (5) and two Long Extensions (6) as shown

in FIGURE 2.

Warning! The Header (3) is not permanently attached to the Legs (1) at this time. Be

careful when moving the Legs (1) or Header (3) until they are permanently attached.

WARNING! When attaching the Short Extensions (5), they must be inserted a minimum

of 4 inches. When attaching the Long Extensions (6), they must be inserted a minimum

of 6 inches. There is a line drawn on each Extension at the minimum length. This line

should always be inside the tubing of the Header (3) and the Legs (1). VERIFY THAT

THE PROPER EXTENSION GOES IN THE CORRECT PLACE; IMPROPER PLACEMENT

WILL CREATE A HAZARDOUS SITUATION.

FIGURE 3

Set Bolt (34)

Short or Long

Extension (5 or 6)

Leg (1) or Header (3)

Slide the two Short Extensions (5) into the Header (3). Position the Short Extensions

(5) out to the maximum safe length (until the white line is barely hidden) and tighten

the Set Bolts (34). See FIGURES 1, 3, and 4 (FIGURE 4 is on page 5).

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Assembly (continued)

5. Slide the two Long Extensions (6) into the Legs (1). Position the Long Extensions (6)

out to the maximum safe length (until the white line is barely hidden) and tighten the

Set Bolts (34). See FIGURES 1 and 3, page 4, and FIGURE 4, below.

6. Using two Bolts (30), two Washers (18), and two Nuts (19), assemble the Post (7) to

the Strut (2) as shown in FIGURE 4 below.

FIGURE 4

Boom (9)

Post (7)

Supports (8)

Header (3)

Strut (2)

Long Extension (6)

Short Extension (5)

Attach Jack (10) Here

Attach

Jack (10)

Here

Using two Bolts (32), Washers (21), and Nuts (22), attach the two Supports (8) to the

two Legs (10). Note the direction of the bends in the Supports (8). Using one Bolt

(31), Washer (21), and Nut (22), attach the two Supports (8) to the center Post (7). See

FIGURE 4 above.

8. Using one Bolt (23), one Washer (24), and one Nut (25), assemble the Boom (9) to the

Post (7). See FIGURE 4 above.

9. Using one Bolt (26), a Washer (18), and a Nut (19), secure the base of the Jack (10)

to the Post (7). See the Assembly Drawing on page 10, and FIGURE 4 above.

10. Turn the Jack’s (10) Release Valve (4a) fully clockwise and insert the Handle (13) into

the Jack (10), and raise (extend) the Jack about 1 inch from the closed position. Refer

to the Jack Assembly Drawing on page 8 and FIGURE 6 on page 7.

11. Using one Bolt (26), one Washer (18), and one Nut (19), secure the Jack (10) to the

Boom (9). See the Assembly Drawing on page 10, and FIGURE 4 above.

Attention! When inserting the Boom Extension (11) make sure the slot at the end of

the Boom Extension (11) is facing down, away from the Post (7). The slot is used in

Number 13 to attach the Hook & Chain (12). See FIGURE 5, next page.

12. Using the Jack (10) and Handle (13), raise the Boom (9) until it is parallel with the

ground. Then, slide the Boom Extension (11) into the Boom (9) and secure it at the

desired extension length with one Bolt (33), one Washer (21), and one Nut (22). See

FIGURE 6 on page 7.

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Assembly (continued)

Operation

Warning!!

Before attempting to lift a load, make sure all four Extensions are extended until the

white line on each one is barely hidden. Tighten the Set Bolts (34) for each Exten-

sion securely, and make sure that it cannot slide in or out.

Adjust the Boom Extension (11) to a maximum weight position that exceeds the weight

you will be lifting. Securely tighten Bolt (33) and Nut (22). See FIGURE 6 on page 7.

2. Move the Crane so that the Hook & Chain (12) is directly above the item to be lifted.

Block the Swivel Casters to prevent inadvertent movement of the Shop Crane.

3. Using the Hook & Chain (12), securely fasten the item to the Crane. See FIGURE 6

on page 7.

4. To raise the Boom (9), turn the Jack’s (10) Release Valve (4a) fully clockwise and insert

the Handle (13) into the Jack (10), and pump the Handle (13) until the Jack (10) raises

to the desired height. See the Jack Assembly Drawing on page 8 and FIGURE 6 on

page 7.

Warning!!

Never stand under an object being lifted by the Shop Crane. Be aware of the possibil-

ity of the load slipping off of the Hook and Chain (12) and causing serious injury.

To lower the Crane, ﬁrst make sure no people or tools are under the load/equipment,

then SLOWLY turn the Jack’s Release Valve (4a) counterclockwise.

6. If desired, after the load is removed, the extensions may be shortened to allow the

unit to be stored in a smaller area. The shorter leg positions are for storage only; be

certain to properly extend and secure all extensions before every use.

13. Using one Bolt (27), two Washers (28), and one Nut (29), attach the Hook & Chain (12)

to the Boom (9) as shown in FIGURE 5 below.

14.

FIGURE 5

Boom Extension (11)

Nut (29)

Washer (28)

Bolt (27)

Hook & Chain (12)

Make certain that all hardware is securely tightened before use.

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Operation (continued)

Hook & Chain (12)

Boom Extension (11)

Insert Handle Here

FIGURE 6

Maintenance

1. Check all of the mounting hardware before each use and make sure it is secure before

using the Shop Crane. Especially check to make sure all 4 Extensions are extended

and secured at the maximum safe length before use.

2. Make sure the Hook & Chain are clean of dirt, grease, or debris.

3. If the Jack (10) is not performing to satisfaction, there may be air in the hydraulic system.

To purge the system of air, follow these instructions. See FIGURE 7 below.

a. Make sure the Ram (22a) is completely lowered.

b. Remove the Oil Fill Plug and top off with Hydraulic Fluid.

c. Raise the Ram (22a) to maximum height.

d. Loosen the Release Valve (4a) and push the Ram (22) all the way down.

e. Top off with Hydraulic Fluid and replace the plug. Repeat if necessary.

FIGURE 7

Jack

Oil Tank

(20a)

Oil Fill Plug

Page 8SKU 07620

For technical questions, please call 1-800-444-3353

Crane Parts List and Assembly Drawing

Lengths are rounded to the nearest 5mm.

Part Description Qty.

1 Leg 2

2 Strut 1

3 Header 1

4 Casters 4

5 Short Extension 2

6 Long Extension 2

7 Post 1

8 Support 2

9 Boom 1

10 Jack 1

11 Boom Extension 1

Part Description Qty.

12 Hook & Chain 1

13 Handle (Jack) 1

14 Bolt

M8x20

15 Washer

16 Nut

17 Bolt

M16x110

18 Washer

M16

19 Nut

M16

21 Washer

M14

22 Nut

M14

23 Bolt*

M18x110

Part Description Qty.

24 Washer

M18

25 Nut

M18

26 Bolt*

M16x95

27 Bolt*

M12x80

28 Washer

M12

29 Nut

M12

30 Bolt

M16x100

31 Bolt

M14x100

32 Bolt

M14x95

33 Bolt

M14x90

34 Set Bolt

M12x20

*Grade 8.8 Hardware

The following Hardware Key applies to sets of Bolts, Washers, and Nuts in the Assembly Drawing:

Bolt Function Washer Nut

14 Caster Assembly 15 16

17 Legs to Strut 18 19

23* Boom to Post 24 25

26* Jack to Boom and Post 18 19

27* Extension to Chain 28 29

Bolt Function Washer Nut

30* Post to Strut 18 19

31 Supports to Post 21 22

32 Supports to Legs 21 22

33 Boom to Boom Extension 21 22

12 11 9

30*

23*

26*

27*

REV 05/06; 07d

Page 9SKU 07620

For technical questions, please call 1-800-444-3353

NOTE: Some parts are listed and shown for illustration purposes only and are not available

individually as replacement parts.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS

MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR

MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR

SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALI-

FIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR

DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD

BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER. THE

BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE

ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER

INSTALLATION OF REPLACEMENT PARTS THERETO.

Jack Parts List and Assembly Drawing

Part Description

1a Base Set

2a Bearing

3a Seal

4a Release Valve

5a Washer

6a Cylinder

7a Copper Washer

8a Valve

9a Seal

10a Cover

11a Pump Cylinder

Part Description

12a 0-ring

13a Seal

14a Piston

15a Plunger/Fulcrum

16a Pin

17a R Type Cotter Pin

18a Link Bolt

19a Washer

20a Oil Tank

21a Washer

22a Ram

Part Description

23a Collar

24a 0-ring (Qty. 2)

25a Cup Seal

26a C-ring

27a End Cap

28a 0-ring

29a Plunger

30a Handle

31a Grip

Note: When ordering Jack parts, always add the sufﬁx “a” after the part number.

910

1213

2728

Central Hydraulics 07620 Assembly And Operating Instructions Manual

Central Hydraulics 07620 Assembly And Operating Instructions Manual

Central Hydraulics 07620 Assembly And Operating Instructions Manual

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