Enerpac PL200 Serie Manual De Instrucciones página 18

Symptom Possible Cause
7. Cylinder stops a. Lock nut not turning.
retracting when lock
b. Lock nut spin-up sensor dirty or
nut contacts cylinder
plugged.
housing. Does not fully
c. Pneumatic system air line lubricator is
retract.
overfi lled.
d. Pneumatic control circuit components
leaking, worn, damaged or out of
adjustment.
e. Hydraulic system components
leaking, worn, damaged or out of
adjustment.
8. Lock nut turns too a. Lock nut not turning freely on cylinder
slowly when cylinder is threads.
retracted.
b. Lock nut drive train components are
worn or loose.
Cylinder stops part-
way and will not fully
retract. c. Cylinder lowering too fast.
9. Lock nut not turning. a. Cylinder threads need lubrication.
b. Lock nut drive chain derailed, broken
or worn.
c. Lock nut drive components are worn
or loose.
d. Lock nut position sensors dirty or
plugged.
e. Pneumatic control circuit components
leaking, worn, damaged or out of
adjustment.
f. Hydraulic system components leaking,
worn, damaged or out of adjustment.
10. Ice formation at a. Water in the air fi lter bowl.
pump air muffl er.
b. Air fi lter element dirty.
or
c. Air line lubricator is empty.
Ice formation at lock
nut position sensors.
d. Air line lubricator drip speed
incorrect.
e. Air supply contains excessive water.
11. Jack is diffi cult to a. Low tire infl ation pressure.
roll on wheels.
b. Wheel bearings need lubrication.
c. Wheel lock nut out of adjustment.
d. Caster wheel worn or stuck.
Table 10 - Troubleshooting Guide (Continued)
Solution
Refer to Step 9 of troubleshooting.
Have lock nut spin-up sensor checked by Enerpac Authorized Service
Center. Verify that sensor ports and air lines are not dirty or blocked.
Drain excess lubricant from air line lubricant bowl. Do not operate jack for 8
to 12 hours to clear excessive lubricant from jack pneumatic control circuit.
Have pneumatic control circuit inspected by Enerpac Authorized Service
Center. Repair or replace components as required.
Have hydraulic system inspected by Enerpac Authorized Service Center.
Repair or replace components as required.
Clean and lubricate cylinder threads. Refer to Section 7.9.
Have Enerpac Authorized Service Center inspect condition of lock nut drive
chain, sprockets and related components. Repair or replace components
as required.
Have Enerpac Authorized Service Center inspect the counterbalance
valve and related hydraulic system components. Adjust, repair or replace
components as required.
Clean and lubricate cylinder threads. Refer to Section 7.9.
Inspect lock nut drive chain. Reinstall or replace chain as required.
Determine if other problems may have caused drive chain wear or failure.
Have Enerpac Authorized Service Center inspect condition of lock nut drive
chain, sprockets and related components. Repair or replace components
as required.
Check the spin-up sensor and Proximity-2 sensor. Verify that sensor ports
and air lines are not dirty or blocked. Refer to step 10 of troubleshooting if
ice has formed on or inside sensors.
Have pneumatic control circuit inspected by Enerpac Authorized Service
Center. Repair or replace components as required.
Have hydraulic system inspected by Enerpac Authorized Service Center.
Repair or replace components as required.
Check air fi lter bowl for water. Drain water from bowl if present.
Clean or replace air fi lter element (inside fi lter/regulator).
Fill lubricant bowl with anti-freeze lubricant. Refer to Section 7.6 for
additional information.
Adjust the lubricator drip speed to 4 to 5 drops per minute.
Reduce amount of water in air supply.
Check tire infl ation pressure. Add air if low.
Pressure should be 90 psi [6,2 bar].
Apply grease to wheel bearings. See Section 7.8.
Loosen lock nut until wheel rotates freely.
Inspect caster wheel for wear and verify that it rotates and pivots freely.
Lubricate bearings with oil if necessary. Replace caster wheel if required.
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