Jackco 66300B User Manual Download Page 4

• Only original replacement parts should be used. 

    Extremely Important:

 never use brake fluid.

• When the jack is not in use, make sure the lifting arm is fully retracted to avoid 

corrosion.

• Keep the jack in a clean, dry place and out of children’s reach.

• Replace the hydraulic fluid in the reservoir at least once a year. To check the 

hydraulic fluid level, lower the lifting arm completely. 

• The hydraulic fluid level should be just below the filler plug. Replenish if necessary, 

and reinstall the rubber filler plug. Excessive hydraulic oil may render the jack 

inoperative.

 

• Inspect the jack before each use. Take corrective action or remove the jack from 

service if any of the following problems are found:

a. Cracked or damaged frame

d. Loose hardware

b. Leaking hydraulic fluid  

e. Modified equipment

c. Scored, damaged piston rod

•  Keep warning labels and instructional decals clean and readable. You may use a 

mild soap solution to wash external surfaces of the jack.

MAINTENANCE

Important:

 Both the maintenance and repair of the jack may only be performed by 

qualified persons, who have sufficient knowledge of the hydraulic system used in these 

jacks

Regularly lubricate the moving parts in the wheels, arms, handle 

and pump roller pin.

4

Summary of Contents for 66300B

Page 1: ...2010 South El Monte CA 888 452 2526 3 TON LOW PROFILE FLOOR JACK USER S MANUAL MODEL 66300B This hydraulic jack conforms to all ANSI ASME safety standards To see more jackco products please visit our...

Page 2: ...autions should be taken to avoid movement of the vehicle Traffic may cause the raised vehicle to rock during roadside use of the jack Never work under a raised vehicle without supporting it with mecha...

Page 3: ...pped in the hydraulic system during shipping and handling Trapped air will affect the pumping performance of the jack If this occurs follow the air pumping procedure below a Remove the four screws tha...

Page 4: ...essive hydraulic oil may render the jack inoperative Inspect the jack before each use Take corrective action or remove the jack from service if any of the following problems are found a Cracked or dam...

Page 5: ...be serviced by qualified service center Jack will not lift to its full height 1 Low on hydraulic fluid Follow Step 5 of the ASSEMBLY procedure on page 3 2 The hydraulic system has trapped air Follow S...

Page 6: ...Wheel 2 13 Universal Joint Ass y 1 4 Rear Caster Ass y 2 14 Block Linkage incl Split Pin Ret Rings 1 5 Hex Nut Lock Washer 2 15 Grease Fitting 1 6 Yoke Retaining Bolt Washer 2 16 Retaining Ring 2 7 Ha...

Page 7: ...20 1 9 Steel ball 4 1 28 Large Pump Piston 1 10 Relief Valve Spring 2 29 O Ring 15 x 2 65 2 11 Relief Valve Bolt 2 30 Back Up Washer 20 x 15 6 x 1 25 2 12 Sealed Washer 2 31 Washer 1 13 Small Pump Ho...

Page 8: ...nufacturer This warranty shall not apply to damage due to accident negligent use and lack of maintenance abuse or applications other than the specific function the equipment or tool is designed for No...

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