Harbor Freight Tools Automobile Parts 36468 User Manual

Flat Bottom  
Long Ram Hydraulic Jack  
3 Ton  
8 Ton  
36468  
36469  
ASSEMBLY & OPERATING INSTRUCTIONS  
3491 Mission Oaks Blvd., Camarillo, CA 93011  
TO PREVENT SERIOUS INJURY,  
READ AND UNDERSTAND ALL WARNINGS  
AND INSTRUCTIONS BEFORE USE.  
©
®
Copyright 2004 by Harbor FreightTools . 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  
 
9. Use eye and ear protection. Always wear ANSI approved impact safety goggles when installing  
or using this product.  
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, listed on the specifications table.  
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.  
NEVER use  
this product  
without it be-  
ing properly  
and securely  
mounted first.  
Assembly/Operation  
NEVER operate the Jack with low or no hydraulic oil  
(see section onAdding Hydraulic Oil”, page 4).  
Your Long Ram Flat 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.  
Mounting  
Hole  
Ram (6)  
1. Attach the Hydraulic Jack to the product you are using. Secure the Valve  
Block (1) to the product by carefully following the manufacturer’s instructions  
for doing so. Do not use this Jack on a product that it is not designed  
for or without being properly mounted to a product. Slide a pin (not  
included) through the product and Ram (6) (See Mounting Hole, right),  
securing it as well. Make sure the pin’s diameter is a push fit with just  
enough clearance so that it can move freely. The pin should be held in  
place with appropriate e-clips or hardened cotter pins (neither one included).  
Mounting  
Points  
Valve  
Block (1)  
SKUs 36468 & 36469  
Page 3  
 
Note: Only use a pin that is intended for supporting this type of Jack, is capable of support-  
ing the maximum capacity listed above, and ensure that the pin is 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 Spindle (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  
Spindle (18) counterclockwise. This will release pressure in the Jack and cause the Jack to  
lower.  
Adding Hydraulic Oil  
1.  
Turn the Release Spindle (18) counterclockwise until Jack is completely lowered. Remove the  
Oil Plug (11) from the Oil Tank (10). Fill the Oil Tank (10) with oil. Use a high quality hydraulic  
oil. Note: The capacity of the Oil Tank is listed on page 2.  
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 Tank’s Oil Plug (11).  
Pump the Handle (26) to raise the Jack to its highest position. Open the Release Spindle (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 Tank 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.  
SKUs 36468 & 36469  
Page 4  
 
Unpacking  
When unpacking your Long Ram Hydraulic Flat 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.  
Parts List  
Note: Some parts are listed and shown for  
illustration purposes only and are not  
available individually as replacement  
parts.  
Part  
1
Description  
Valve Block  
Copper Washer  
Cylinder  
Qty.  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
3
Note: When ordering, specify which model  
number the parts will be for.  
4
O-Ring  
5
O-Ring Retainer  
Ram  
6
7
Top Nut  
Assembly Diagram  
8
O-Ring  
9
Scaling Gasket  
Oil Tank  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
31  
Oil Plug  
Seal Ring  
Tube  
Bolt  
Screw  
Ball  
Seal Ring  
Release Spindle  
Ball  
Copper Washer  
Pump Cylinder  
U-Cup Seal  
Back Up Ring  
Plunger  
Pump Link  
Handle  
Handle Socket  
Shaft  
Cotter Pin  
O-Ring  
Seal Kit **  
**Seal Kit includes one of each of the following:  
#2,4,5,8,9,11,13,17,20,23  
SKUs 36468 & 36469  
Page 5  
 

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