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
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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 on“Adding 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
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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
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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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