3. OPERATING,INSTRUCTIONS
3.1 Connect the hydraulic ram, hose and pump unit together, ensure that you have securely fastened the couplers
before pumping.
Warning:
Inspect before each use. Do not use if bent, broken, leaking, damaged components or any suspect parts are
noted and/or it has been subjected to a shock load
3.2 Open the breather valve (P09).
3.3 Firmly close the release valve (P15) by turning it clockwise.
3.4 Adjust the ram slowly to make the load coaxial with the ram.
NOTE:
The pump can be used in any position from horizontal to vertical. Always keep the hose end of the pump
downward when it is not horizontal.
3.5 Pump the handle (P39) up and down to supply pressure.
3.6 When work is done,
SLOWLY
and
CAREFULLY
turn the release valve counterclockwise (never more than one
turn) to release the pressure until ram retracts to desired position.
3.7 Close the breather valve.
4. MAINTENANCE
4.1 When not in use, store the equipment in a dry location with the pump piston (P34) and the ram fully retracted.
4.2 Periodically check the ram and pump piston for signs of rust or corrosion. Clean exposed areas with a clean oiled
cloth.
Warning:
Never use sandpaper or abrasive material on these surfaces!
4.3 A coating of light lubricating oil to pivot points, axles and hinges will help to prevent rust and assure that pump
assemblies move freely. Periodically lubricate the pivot points, axles and hinges with a light lubricating oil as
needed.
4.4 With ram fully lowered, set pump unit in its normal, level position. Remove the oil filler screw (P07) to check the
hydraulic oil level. If it is not adequate add high quality hydraulic jack oil as necessary.
Warning:
DO NOT
use brake fluid or any other improper fluid and avoid mixing different types of oil when adding
hydraulic oil.
4.5 To ensure best performance and longer equipment life, replace the complete hydraulic oil at least once a year. With
ram fully lowered, remove the oil filler screw (P07) and drain the oil into a suitable container. Ensure that no dirt
gets into the system. Set the pump in its normal level position, fill with approved hydraulic jack oil, then replace the
oil filler screw (P07).
Note:
Dispose of hydraulic oil in accordance with local regulations.
4.6 When equipment efficiency drops, purge away air from hydraulic system: Tum the release valve counterclockwise
by 1-1/2 tums, with ram fully retracted and release valve open, pump the handle rapidly for 10-20 times.
4.7 It is recommended that an annual inspection be done by qualified technicians.
5. TROUBLESHOOTING
Symptom
Possible Causes
Corrective Action
Ram won't lift load
Release valve not tightly closed
Overload condition
Air trapped in system
Firmly close release valve
Remedy overload condition
Purge away air from system
Ram won't maintain load
Release valve not tightly closed
Hydraulic unit malfunction
Firmly close release valve
Replace ram and/or pump
Ram won't lower after unloading
Reservoir overfilled
Linkages binding
Drain oil to proper level
Clean & lubricate moving parts
Ram won
’t extend to full stroke
Oil level low
Add hydraulic oil
Poor performance
Oil level low
Air trapped in system
Add hydraulic oil
Purge away air from system
1-800-345-4545 jegs.com
Summary of Contents for 81532
Page 4: ...1 800 345 4545 jegs com ...
Page 5: ...1 800 345 4545 jegs com ...