Harbor Freight Tools 37481 User's Manual
Contents
1. CENTRAL HYDRAULICS TRANSMISSION JACK ONE TON 1113137481 ASSEMBLY and OPERATING INSTRUCTIONS I HARBOR FREIGHT a im LS TOOLS tm 3491 Mission Oaks Blvd Camarillo CA 93011 Copyright O 1997 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 Specifications Maximum 30 1 2 inches 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 eguipment Read all instructions before using this tool 1 Do not use jack until properly trained The transmission jack is intended for use by properly trained and experienced personnel only If you are not familiar with the proper and safe operation of a transmission jack do not use until trained 2 Keep work area clean Cluttered areas invite injuries 3 Observe work area conditions Do not use machines or pow2. protrude through the angle brackets 30 Adjust to desired width then tighten nuts thoroughly Claw 27 Typical of 4 Bolt washer nut 30A Nut 48 Typical of 4 Fossi Key Washer Nut 28 Chain 26 1 N bolted to claw y Angle Bracket 30 a y Bolt 49 NN Typical of 4 RS Angle Screw 25 w Base Panel 24 Angle Bracket 30 4 Mount each claw 27 on the inside of the angle brackets 30 using bolts 48 nuts 49 and washers as shown in the illustrations Nuts and washers should be on the inside Adjust distance to desired cradle width for the transmission then tighten 5 Insert the key 28 where chain is temporarily attached into the upper claw 27 hole from the outside Place the washer and nut on the other end of the key inside claw and tighten Bolt the chain 26 to the outside of the diagonally opposite claw top hole Remove the plastic cap on the Air Valve 9 before operating the jack Failure to do so may cause improper jack operation Operation 1 _ Turn the Pressure Valve Knob 6 counterclockwise to open lowering tranmission saddle Turn Pressure Valve Knob clockwise to close 2 With the vehicle properly secured and raised to the correct height to remove the transmission move the jack into position under the transmission 3 Raise the saddle by moving the Pump Handle 11 up and down until the claws 27 are just belo
3. aulic cylinder Fill with clean hydraulic fluid only Replace Air Valve Bleeding Air from the Hydraulic System 1 2 5 Place jack in a clear floor area Turn the Pressure Valve Knob 6 counterclockwise to allow saddle to lower completely and release pressure Unscrew Air Valve 9 1 2 turn counterclockwise Hold the saddle down while moving the Pump Handle 11 up and down several times Tighten the Air Valve Seal Replacement 0 rings and seals can be purchased if you need to have your jack serviced Take the jack to a qualified mechanic along with the 0 rings and seals The Transmission Jack cannot be user serviced SKU 37481 Page 7 REV 09 02 REV 02 04 item Description Qty es Le Cane EN an RSC EE I Pump Oring o Pump Oring o ring a RE 6 presse vate Ce form Cs fave EE E RE lenn DI o Je Lis oe Pacing N SKU 37481 Parts List Page 8 item Description aty Pica Jsme E a freien TI EE TUC EE DO sa r aa r REV 09 02 Parts Illustration 49 48 26 HER 30A g 30 fi 19 1440 5 2 4 TA 22 is 1 isa Y AA 557 x go BG n SKU 37481 Page 9 REV 09 02
4. er tools in damp or wet locations Don t expose to rain Keep work area well lighted Do not use electrically powered tools in the presence of flammable gases or liguids 4 Secure vehicle The vehicle must be properly supported and blocked before starting repairs 5 Do not overload Use the proper size and capacity transmission jack to handle the anticipated load or damage may occur to the jack and create a safety hazard SKU 37481 Page 2 Avoid moving parts on the jack Keep fingers hands and arms away from moving parts of the jack at all times Secure load Secure the load with a safety chain before lowering or moving Use jack on hard surfaces only The jack is designed for use only on hard level surfaces capable of sustaining the load Using the jack on a soft surface can result in jack instability and possible loss of load Keep children away Children must never be allowed in the work area Do not let them handle machines tools or extension cords Store idle eguipment 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 Do not force tool It will do the job better and more safely at the rate for which it was intended Do not use inappropriate attachments in an attempt to exceed the tool capacity Use the right tool for the job The use of this jack is limited to the removal installation and transportation in the lowered position of transmissi
5. 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 Do not use the tool if any switch does not turn On and Off properly SKU 37481 Page 3 20 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 21 Do not operate tool if under the influence of alcohol or drugs Read warning labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs If there is any doubt do not operate the tool 22 Comply with safety warnings Failure to comply with all of these warnings may cause loss of load damage or failure of the jack or personal injury and property damage Unpacking When unpacking check to make sure the following parts are included If any parts are missing or broken please call Harbor Freight Tools at the number on the cover of this manual If any part of the machine is missing or broken please call Harbor Freight Tools at the number on the front cover as soon as possible WARNING ALWAYS EVALUATE YOUR TASK BEFORE USING THIS JACK This jack is designed to support a transmission or a differential as individual components Assemblies such as a differential with axle or a transmission with bell h
6. ons and differentials 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 Use eye and ear protection Always wear ANSI approved impact safety goggles Wear a full face shield if you are producing metal filings or wood chips Wear an ANSI approved dust mask or respirator when working around metal wood and chemical dusts and mists Do not overreach Keep proper footing and balance at all times Do not reach over or across running machines Maintain tools with care Keep tools sharp and clean for better and safer performance Follow instructions for lubricating and changing accessories Inspect tool cords periodically and if damaged have them repaired by an authorized technician The handles must be kept clean dry and free from oil and grease at all times Remove adjusting keys and wrenches Check that keys and adjusting wrenches are removed from the tool or machine work surface before plugging it in Stay alert Watch what you are doing use common sense Do not operate any tool when you are tired 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
7. ousing can be bulky and difficult to balance on the jack s platform or cradle LIFTING OR SUPPORTING SUCH ASSEMBLIES EVEN WITHIN THE WEIGHT LlMIT CAN CREATE AN OFF BALANCE SITUATION CAUSING THE JACK TO TIP OVER AND LEAD TO SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE The load should be evenly distributed on the jack and should not extend beyond the area of the castor wheelbase Always use safety straps or chains to secure the load If you are working and the load becomes off balance and or the jack begins to tip over DO NOT ATTEMPT TO CATCH OR LIFT WHEN FALLING SERIOUS PERSONAL INJURY CAN BE SUFFERED In this event clear the area as quickly and safely as possible in order to avoid injury from the falling load including getting hit with flying fragments IF IN DOUBT ABOUT THE SAFETY OF YOUR PROJECT WE ADVISE YOU TO HAVE THE WORK DONE BY A PROFESSIONAL FAMILIAR WITH APPLICABLE SAFE PRACTICES Assembly Before installing the angle brackets 30 claws 27 and chain 26 to the base panel 424 refer to parts breakdown illustration on the last page Verify all necessary parts for assembly are in the parts bag 1 Place the Transmission Jack on a clear area on the floor SKU 37481 Page 4 REV 09 02 2 Place the angle brackets 30 on each side of the base panel 24 as shown below 3 Insertthe bolts 30A up through the bottom of the base panel 24 and then the washers and nuts onto the bolts as they
8. w the front and rear of the transmission SKU 37481 Page 5 REV 09 02 Travel Screw Angle Screw 25 29 opposite side 2 Pump Handle 11 Air Valve 9 Pressure Valve Knob 6 4 Adjust the saddle Travel Screw 29 and the slant Angle Screw 25 to align with the shape of the transmission Adjust the claws 27 if necessary Continue moving the saddle up until the transmission is resting on the saddle Carefully move the jack to free the transmission from its location Slowly turn the Pressure Valve Knob 6 counterclockwise to open lowering the transmission 8 Pull the Chain tightly over the transmission and hook the nearest link onto the chain Key 28 to secure 9 _ The transmission can now be safely moved 10 Reverse this procedure when mounting a transmission SKU 37481 Page 6 REV 09 02 Maintenance The hydraulic cylinder assembly contains hydraulic fluid that must be kept approximately 80 full at all times for proper operation To check the level and refill follow these steps Note The hydraulic cylinder has a capacity of 8 4 ounces of hydraulic fluid Adding Hydraulic Fluid 1 4 di Turn the Pressure Valve Knob 6 counterclockwise to allow saddle to lower completely Remove the Air Valve 9 by unscrewing Keep screw in a safe place Visually inspect the inside of the air valve opening The hydraulic fluid must be 80 of the capacity of the hydr
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