Table of Contents
Advertisement
OPERATION
Lifting
1. Follow the vehicle manufacturer's
recommended guidelines for lifting. Engage
the emergency brake and chock each
unlifted wheel in both directions to prevent
inadvertent vehicle movement.
2. Close the release valve by turning the
handle clockwise until firm resistance is felt.
3. Refer to the vehicle manufacturer owner's
manual to locate approved lifting points on the
vehicle. Center jack saddle under lift point.
4. Verify lift point, pump handle until saddle
contacts lift point. To lift, pump handle until
load reaches desired height.
5. Transfer the load to an identical pair of
appropriately rated jack stands.
Lowering
!
WARNING: Clear all tools and personnel
before lowering vehicle. Open release
valve slowly. The further the pump
handle is turned counter-clockwise, the
faster the load will descend. Maintain
control of load at all times.
SPECIFICATIONS
Model
Capacity
50238
2-1/2 Ton
MAINTENANCE
NOTICE: Use premium quality hydraulic
jack oil. Avoid mixing different types of
fluid and NEVER use brake fluid, turbine
oil, transmission fluid, motor oil or glycerin.
Improper fluid can cause premature failure
of the jack and the potential for sudden and
immediate loss of load.
Adding oil
1. With saddle fully lowered set jack in its upright,
level position. Remove vent srew.
2.
Fill with oil until ~3/16" above the inner
cylinder as seen from the oil filler hole.
Reinstall vent screw.
Changing oil
For best performance and longest life, replace
the complete fluid supply at least once per year.
1. With saddle fully lowered, remove vent screw.
2. Lay the jack on its side and drain the fluid into
a suitable container.
OPERATION
Jack Size
(L x W x H)
29-3/4" x 13-1/4"
MAINTENANCE
1. Raise load high enough to clear the jack
stands.
2. Remove jack stands carefully.
3. Turn handle counter-clockwise, but no more
than 1/2 full turn. If the load fails to lower:
a. Use another jack to raise the vehicle
high enough to reinstall jack stands.
b. Remove the malfunctioning jack and
then the jack stands.
c. Use the functioning jack to lower
the vehicle.
4. After removing jack from under the vehicle,
fully lower the saddle to reduce ram
exposure to rust and contamination.
Bleeding/Venting Trapped Air
With the release valve in the OPEN position
(step 5b. above) and with saddle fully
lowered, locate and remove the oil filler plug.
Pump handle 6 to 8 full strokes. This will help
release pressurized air which may be trapped
within the reservoir. Reinstall the oil filler plug
and check operation.
Min.
Max.
Height
Height
4"
20"
NOTICE: Dispose of hydraulic fluid in accordance
with local environmental regulations.
3. Fill with oil until ~3/16" above the inner
cylinder as seen from the oil filler hole.
Reinstall vent screw.
Lubrication
A periodic coating of light lubricating oil to pivot
points, axles and hinges will help to prevent
rust and assure that wheels, casters and pump
assemblies move freely.
Cleaning
Periodically check the pump piston and ram for
signs of rust or corrosion. Clean as needed and
wipe with an oily cloth.
NOTICE: Do not use sandpaper or abrasive
material on ram and pump piston surfaces.
Storage
When not in use, store the jack with saddle
fully lowered.
4
Saddle
Volume of
Dia.
Hyd. Oil
5-1/2"
240 mL
Advertisement
Table of Contents
