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Features And Operation - Craftsman 50357 Operator's Manual

31/2 ton speedy lift garage jack

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PICTURE 1
Upper
Handle
Spring Pin
PICTURE 2
Bolt
PREPARATION
Compare these illustrations with your jack
BEFORE operation and/or oil level maintenance
to become familiar with the location of various
jack components (page 2).
ASSEMBLY
Assembly
Handle Assembly
• Locate the spring pin on bottom end of
upper handle and the spring pin receiver
on the upper end of lower handle
(Picture 1).
• Align the spring pin with the spring pin
receiver. Connect the two handle pieces
together by pressing the spring pin and
insert until the spring pin is locked in the
spring pin receiver.
NOTICE: ONLY use the handle provided
with this jack. Handle is specially designed
to properly fit into handle socket and engage
release valve.
Spring Pin
Receiver
Lower Handle
Assembled
Handle
Handle
Socket
Handle Assembly
• Insert the assembled handle into the handle
socket, until it is firmly seated.
• Tighten the bolt on handle socket to prevent
accidental removal of handle while inuse.
FEATURES & OPERATION
Operation
Raising the Jack
• Place vehicle in park, with emergency brake
on and wheels securely chocked to ensure
lifting stability.
• Refer to the vehicle manufacturer owner's
manual to locate the approved vehicle
lifting points.
• Position the jack so that the saddle will firmly
contact the vehicle lifting point.
• Close the release valve by turning the
handle clockwise until it stops.
• Pump jack handle until saddle nears contact
with vehicle lifting point. Check to see that
the saddle is centered and will contact lifting
point firmly.
• Continue to pump jack handle to lift vehicle
to desired height.
• After lifting, support the load with
appropriately rated vehicle support stands
before working on vehicle.
WARNING: Never work on, under, or around
a load supported only by a hydraulic jack.
Lowering the Jack
• Raise load high enough to clear jack stands;
then carefully remove the stands.
• Carefully open the release valve by slowly
turning the handle counterclockwise.
• After removing jack from under vehicle, if
saddle has not fully descended, push it all
the way down to reduce ram exposure to
rust and contamination.
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 lift cylinder, which forces
the power unit ram out. This raises the
saddle.
4

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