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Operation

Raising the Jack

•  Close the release valve by turning the handle

  clockwise as far as it will go.

•  Block the vehicle’s wheels for lifting stability.

•  Refer to the vehicle manufacturer owner’s manual to

  locate approved lifting points on the vehicle.

  Position the jack so that the saddle is centered and

  will contact the load lifting point firmly.

•  Pump jack handle until saddle nears contact with

  the vehicle. Check to see that the saddle is centered

  and will contact the load lifting point firmly.

•  Continue to pump the jack handle to lift the vehicle

  to the desired height. After lifting, support the load

  with appropriately rated vehicle support stands 

  before working on the vehicle.

Lowering the Jack

•  Carefully open the release valve by slowly turning

  the handle counterclockwise.

How it Works

With Release Valve Closed

•  An upward stroke of the jack handle draws oil from

  the reservoir tank into the plunger cavity. Hydraulic

  pressure holds the valve closed, which keeps the 

  oil in the plunger cavity.

•  A downward stroke of the jack handle releases oil

  into the cylinder, which forces the ram out. 

  This raises the saddle.

•  When the ram reaches maximum extension, oil is

  bypassed back into the reservoir to prevent an over

  extended ram stroke and possible damage to the

  jack.

•  Opening the release valve allows oil to flow back

  into the reservoir. This releases hydraulic pressure

  on the ram, which results in lowering the saddle.

FEATURES & OPERATION

MAINTENANCE

To Add Oil:

•  Position the jack on level ground and lower the

  saddle. 

•  Use a Phillips head screwdriver to remove the 

  cover plate.

•  Remove the oil plug.

•  Fill the oil case until oil level is just beneath the

  lower rim of oil fill hole. Replace oil plug.

•  Perform the Air Purge Procedure described below.

To Replace Oil:

•  Fully open release valve by turning handle 

  counterclockwise as far as it will go.

•  Turn the jack over so that old oil will drain from

  the oil fill hole.

•  Refill through oil fill hole. Keep dirt and other

  material clear when pouring. Fill to just beneath

  lower rim of hole. Replace oil plug. 

•  Perform Air Purge Procedure described below.

Lubrication

•  Add lubricating oil (WD-40) to all moving parts

  when needed.

•  For light duty use lubricate every six months.

•  For heavy and constant use lubrication

  recommended every month.

Rust Prevention:

•  Check ram and pump plunger on the Power Unit

  Assembly every two months (or sooner, based on

  usage) for any signs of rust or corrosion. Lift the jack

  as high as it goes and look under and behind the

  lifting arm. If signs of rust are visible clean as needed

  and wipe down with an oily cloth or WD-40.

•  When storing the jack, always have the saddle and

  pump plunger in the down position.

ALWAYS USE A GOOD GRADE HYDRAULIC JACK 

OIL. DO NOT USE HYDRAULIC BRAKE FLUID, 

ALCOHOL, GLYCERINE, DETERGENT, MOTOR OIL 

OR DIRTY OIL. USE OF AN UN-RECOMMENDED 

FLUID CAN CAUSE DAMAGE TO YOUR JACK.
Grease Fitting 

There is grease fitting located on top of the jack. It is

for manufacturing purposes only. The jack has been

filled with sufficient grease by the factory for the lifetime

of the jack. Do not add more grease.

Air Purge Procedure

During shipment or after oil refill, air may get into the 

hydraulic system causing poor lifting performance.

Then system air purge is required as follows:

1.  Turn the release valve fully counterclockwise to fully

  open the release valve.

2.  Pump handle rapidly several times.

3.  Turn the release valve clockwise to close the release

  valve.

4.  Pump handle until the lift arm reaches maximum 

  height and continue to pump several times to remove

  trapped air in the ram.

5.  Turn the release valve fully counterclockwise to lower

  lift arm to lowest position. Use force on saddle 

  if necessary.

6.  Turn the release valve clockwise to closed position

  and check for proper pump action.  It may be 

  necessary to perform the above steps more than 

  once to assure air is evacuated totally.

2

PICTURE 1

PICTURE 2

PICTURE 3

Clip

Handle

pc. 2 

Handle

pc. 1

Handle

Socket Screw

Bottom of 

Handle

Screw

Summary of Contents for 50168

Page 1: ...d this Operator s Manual and follow all its Safety Rules and Operating Instructions Printed in China Sears Roebuck and Co Hoffman Estates IL 60179 U S A www sears com For Trouble Shooting Service Parts Call 8 AM 5 PM PST Monday Friday 1 888 448 6746 PARA VENTA DE PARTES Y SERVICIO Llame 8 AM 5 PM Tiempo Pacifico Lunes Viernes 1 888 448 6746 ...

Page 2: ...efect in material or workmanship within one year from the date of purchase return it to any Sears store or other Craftsman outlet in the United States for free replacement This warranty applies for only 90 days from the date of purchase if this product is ever used for commercial or rental purposes This warranty gives you specific legal rights and you may also have other rights which vary from stat...

Page 3: ...ill drain from the oil fill hole Refill through oil fill hole Keep dirt and other material clear when pouring Fill to just beneath lower rim of hole Replace oil plug Perform Air Purge Procedure described below Lubrication Add lubricating oil WD 40 to all moving parts when needed For light duty use lubricate every six months For heavy and constant use lubrication recommended every month Rust Preventio...

Page 4: ...EXPLODED VIEW AND PARTS LIST 3 FOR AFTER SALE PARTS AND SERVICE Call 8 AM 5 PM PST Monday Friday 1 888 448 6746 TROUBLESHOOTING ...

Page 5: ...LOS GATOS CRAFTSMAN Si este gato Craftsman no le satisface pleanamente dentro de un ano de la fecha de compra devuelvalo al centro o departamento de sevicio SEARS mas cercano en los Estados Unidos Si este gato Craftsman se usa para fines comerciales o de alquiler esta garantia esta vigente solo por 90 dias desde la fecha de compra Esta garantia le concede derechos legales especificos y usted tambien...

Page 6: ...r el aire atrapado en el piston bombee la manija hasta que el brazo izador alcanze su maxima y continue bombeando varias veces 5 Gire la valvula de escape una vuelta completa en sentido contrario a las agujas del reloj y baje el brazo izador a la posicion mas baja Presione sobre la montura si fuera necesario 6 Gire la valvula de escape a la derecha a la posicion cerrada y revise para asegurar que ...

Page 7: ...6 VISTA DETALLADA Y LISTA DE PIEZAS PARA VENTA DE PARTES Y SERVICIO Llame 8 AM 5 PM Tiempo Pacifico Lunes Viernes 1 888 448 6746 ...

Page 8: ...FOR AFTER SALE PARTS AND SERVICE Call 8 AM 5 PM PST Monday Friday 1 888 448 6746 PARA VENTA DE PARTES Y SERVICIO Llame 8 AM 5 PM Tiempo Pacifico Lunes Viernes 1 888 448 6746 ...

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