3Ton Round Bottom
Long Ram Hydraulic Jack
36396
ASSEMBLY & OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd., Camarillo, CA 93011
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
©
®
Copyright 2003,2004 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
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10. Keep children away. Children must never be allowed in the work area.
11. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across the Jack during use.
12. Never leave the product unattended while supporting an object.
13. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches are removed
from the tool or machine work surface before operating.
14. Never place your hands or other body parts near a hydraulic fluid leak. Never check for a
leak with your hands or other body parts. High-pressure fluid can be forced under your skin
resulting in serious injury.
15. Always make certain that the Hydraulic Jack and the product it is used with are set on a
flat, level and secure surface that is capable of supporting the combined weight of the
Hydraulic Jack, accompanying accessories and the weight of any material that is moved or
lifted. Make certain that the Jack is undamaged and mounted securely before use.
16. Read and adhere to the entire owner’s manual of any product that is used with the Hydraulic
Jack.
17. Always use the Jack within its rated weight load capacity, (3 tons = 6,000 Lbs.).
18. The Jack is designed for lifting only. Always use stationary supports after object is lifted.
Avoid using the Jack on slanted surfaces. Loading should be centered on the ram perpendicular
to the base.
19. Never put any part of your body under any object supported by the Jack at any time.
20. Not to be used for aircraft purposes.
Warning:
The warnings, cautions, and instructions discussed in this
instruction manual cannot cover all possible conditions and
situations that may occur. It must be understood by the operator
that common sense and caution are factors which cannot be built
into this product, but must be supplied by the operator.
Assembly/Operation
Mounting
Hole #1
NEVER operate the Jack with low or no hydraulic oil
(see section on“Adding Hydraulic Oil”, page 4).
Your 3 Ton Long Ram Round Bottom Hydraulic Jack will require complete
assembly and installation prior to use. It is important that you read the entire
manual to become familiar with the product BEFORE you assemble and use the
Hydraulic Jack. Before assembling and operating the Hydraulic Jack be sure
that you have all parts described in the Parts List and Assembly Diagram located
on the last pages of this manual.
Ram (6)
Mounting
Points
Valve
1. Attach the Hydraulic Jack to the product you are using. Secure the Valve
Body (1) to the product by inserting a pin (not included) through the holes in
the Valve Body (1) and properly securing it, (See Mounting Hole #1, right).
Slide another pin (not included) through the product and Ram (6) (See
Body (1)
Mounting
Hole #2
Mounting Hole #2, right), securing it as well. Make sure the pins’ diameters are a push fit with
just enough clearance so they move freely. The pins should be held in place with appropriate
e-clips or hardened cotter pins (neither one included).
SKU 36396
Page 3
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Note: Only use pins that are intended for supporting this type of Jack, are capable of
supporting 3 Tons, and ensure that the pins are properly secured before use.
Note: This Jack is not intended for horizontal use.
2.
1.
2.
Insert the Handle (26) into the Handle Socket (27).
Raising and Lowering
To raise the Hydraulic Jack turn the Release Valve (18) clockwise until the valve is tightly
closed. Pump the Handle (26) to raise the Jack. Continue to pump the Handle (26) until the
Hydraulic Jack is at the desired height.
To lower the Jack, first verify that the area under the object is clear, then turn the Release Valve
(18) counterclockwise. This will release pressure in the Jack and cause the Jack to lower.
Adding Hydraulic Oil
1.
Turn the Release Valve (18) counterclockwise until Jack is completely lowered. Remove the
Oil Plug (11) from the Oil Chamber (10). Fill the Oil Chamber (10) with oil. Use a high quality
hydraulic oil. Note: The capacity of the oil chamber is 17.6 ounces.
Hydraulic System Bleeding Instructions
If the Hydraulic Jack begins to lose power and efficiency, it may be a result of air being trapped
in the hydraulic system. Follow the steps shown below to bleed the air from the hydraulic system.
Caution: Make certain that the Hydraulic Jack is not under load while bleeding the system.
1.
2.
Remove oil chamber’s Oil Plug (11).
Pump the Handle (26) to raise the Jack to its highest position. Open the Release Valve (18).
Release the Handle (26) to lower the Jack. Repeat pumping the Handle a number of times to
force the hydraulic oil through the system.
3.
4.
Top off the oil chamber with hydraulic oil. Tighten the Oil Plug (11). The bleeding process is
now complete.
Test the Hydraulic Jack to be certain it is working properly. Only proceed after you ensure that
it is working properly.
PLEASE READTHE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS
MANUAL AS A REFERENCETOOL ONLY. NEITHERTHE MANUFACTURER NOR DISTRIBUTOR MAKES ANY
REPRESENTATION OR WARRANTY OF ANY KINDTOTHE BUYERTHAT HE OR SHE IS QUALIFIEDTO MAKE
ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE
PRODUCT. IN FACT,THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATESTHAT 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.
SKU 36396
Page 4
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Unpacking
When unpacking your 3 Ton Long Ram Hydraulic Round Bottom Jack, check to make sure
the following parts are included. If any parts are missing or broken, please call HARBOR
FREIGHT TOOLS at 1-800-444-3353.
Part # Description
Qty.
1
1
1
1
1
1
1
1
1
Part # Description
Qty.
1
1
1
1
1
1
1
1
1
1
2
3
Valve Body
Copper Washer
Cylinder
17
18
19
20
21
22
23
24
25
26
27
28
29
Seal Ring
Release Valve
Steel Ball
Copper Washer
Pump Cylinder
O-ring
Back Up Ring
Plunger
Link Pin
Handle
4
O-Ring
5
O-Ring Retainer
6
Ram
7
Top Nut
8
O-Ring
9
Sealing Gasket
Oil Chamber
Oil Plug
Seal Ring
Tube
10
11
12
13
16
1
1
1
1
1
1
3
3
Handle Socket
Connecting Pin
Cotter Pin
Steel Ball
1
Note: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
Assembly/Parts Diagram
26
SKU 36396
Page 5
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