Harbor Freight Tools Automobile Parts 36397 User Manual

8Ton Round Bottom  
Long Ram Hydraulic Jack  
36397  
ASSEMBLY & OPERATING INSTRUCTIONS  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
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  
 
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, (8 tons = 16,000 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 onAdding Hydraulic Oil”, page 4).  
Your 8 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 36397  
Page 3  
 
Note: Only use pins that are intended for supporting this type of Jack, are capable of  
supporting 8 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 ReleaseValve  
(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 28 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 36397  
Page 4  
 
Unpacking  
When unpacking your 8 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  
Handle Socket  
Connecting Pin  
Cotter Pin  
4
O-Ring  
5
O-Ring Retainer  
6
7
Ram  
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
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 36397  
Page 5  
 

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