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Maintenance and lubrication
• When not in use, store the jack in a dry location
with saddle in lowest position.
• Periodically check the piston rod for signs of
rust or corrosion. Clean exposed areas with a
clean oiled cloth.
Warning: Never use sandpaper or abrasive
material on these surfaces.
• A coating of light lubricating oil to pivot points,
axles and hinges will help to prevent rust and
assure that castors, foot pedal and pump
assemblies move freely. Periodically lubricate
the pivot points, axles and hinges with a light
lubricating oil as needed.
• With jack in its lowest position, remove the air
vent screw (19) to check the hydraulic oil level.
If it is not adequate, add high quality hydraulic
jack oil as necessary. Insert and tighten the air
vent screw. Then purge away air from hydraulic
system.
Warning: Do not use brake fluid or any other
improper fluid and avoid mixing different types
of oil when adding hydraulic oil.
• To ensure best performance and longer
equipment life, replace the complete hydraulic
oil at least once a year. With jack in its lowest
position, remove the air vent screw, lay the
jack on its side and drain the oil into a suitable
container.
Troubleshooting guide
Trouble
Unit fails to extend or
extends partially.
Incomplete or spongy
cylinder response when
foot pedal is pumped.
Unit fails to extend when
foot pedal is pumped.
Cylinder doesn't retract
or retract slowly when
release pedal is activated.
Cause
Low fluid level
1. Low fluid level
2. Air in system
3. Pressure is low
1. Release handle
malfunction
2.Contamination
1. Release handle
malfunction or cylinder
is binding
2. Contamination
Note: Ensure that no dirt gets into the system.
• Set the jack in its level upright position, fill with
approved hydraulic jack oil. Then replace the air
vent screw and purge away air from hydraulic
system.
Note: Dispose of hydraulic oil in accordance
with local regulations.
• When equipment efficiency drops, purge away
air from hydraulic system.
• It is recommended that an annual inspection
be done by qualified technicians.
Solution
Refer to maintenance section and fill to correct fluid level.
1. Fill to correct fluid level.
2. Refer to operation section and purge the hydraulic circuit.
3. Pressure regulating again.
1. Pump foot pedal with release handle open.
2. Disassemble and clean unit.
1. Disassemble unit, replace defective parts.
2. Disassemble and clean unit.
S O N I C - E Q U I P M E N T . C O M
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