Central Hydraulics 07620 Assembly And Operating Instructions Manual

  • Hello! I am an AI chatbot trained to assist you with the Central Hydraulics 07620 Assembly And Operating Instructions Manual. I’ve already reviewed the document and can help you find the information you need or explain it in simple terms. Just ask your questions, and providing more details will help me assist you more effectively!
2 TON SHOP CRANE
ASSEMBLY AND OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
Copyright
©
2005 by Harbor Freight Tools
®
. All rights reserved. No portion of
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” (@
1
/
2
Ton Setting)
Boom Height 26” to 104” (@
1
/
2
Ton Setting)
Overall Height 60”
Jack to Hook Length 26” to 52”
Minimum Base Size 61-
1
/
2
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
1
/
2
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.
Page 3SKU 07620
For technical questions, please call 1-800-444-3353
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.
Page 4SKU 07620
For technical questions, please call 1-800-444-3353
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.
3.
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.
4.
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).
Page 5SKU 07620
For technical questions, please call 1-800-444-3353
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.
7.
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.
Page 6SKU 07620
For technical questions, please call 1-800-444-3353
Assembly (continued)
Operation
1.
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.
5.
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.
Page 7SKU 07620
For technical questions, please call 1-800-444-3353
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
16
15 Washer
M8
16
16 Nut
M8
16
17 Bolt
M16x110
2
18 Washer
M16
6
19 Nut
M16
6
21 Washer
M14
4
22 Nut
M14
4
23 Bolt*
M18x110
1
Part Description Qty.
24 Washer
M18
1
25 Nut
M18
1
26 Bolt*
M16x95
2
27 Bolt*
M12x80
1
28 Washer
M12
2
29 Nut
M12
1
30 Bolt
M16x100
2
31 Bolt
M14x100
1
32 Bolt
M14x95
2
33 Bolt
M14x90
1
34 Set Bolt
M12x20
4
*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
7
8
3
5
4
1
6
2
10
17
14
30*
31
23*
26*
32
14
26*
34
33
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.
1
2
3
4
5
6
7
8
910
11
1213
14
15
16
17
23
30
31
18
19
20
21
22
24
25
26
2728
29
24
/