Troubleshooting - Enerpac PL200 Serie Manual De Instrucciones

8.0 TROUBLESHOOTING

The information in the Troubleshooting Guide (refer to Table 10) is
intended as an aid to help diagnose and correct various possible
problems that may occur.
For repair service, contact your local Enerpac Authorized Service
Center. Only an Enerpac Authorized Service Center should
service the jack and its components.
Symptom Possible Cause
1. Sporadic cylinder a. Air trapped in hydraulic system.
action and/or sluggish
operation.
b. Low oil level in hydraulic reservoir.
c. Insuffi cient compressed air pressure
or volume.
d. Clogged or blocked pump intake
screen.
e. Pneumatic control circuit components
leaking, worn, damaged or out of
adjustment.
f. Seal wear, internal leakage, worn
components and/or other internal
damage.
2. Noisy operation. a. Air trapped in hydraulic system.
b. Low oil level in hydraulic reservoir.
c. Air muffl er missing or damaged.
d. Air leaks in hydraulic system.
e. Clogged or blocked pump intake
screen.
f. Air motor worn or damaged.
3. Oil is overheating. a. Low oil level in hydraulic reservoir.
b. Oil viscosity too high or too low.
c. Excessive cycling of cylinder.
d. Jack is overloaded.
e. High pressure leakage at the pump.
Failure to observe and comply with the following precautions
could result in death or serious personal injury. Property
damage could also occur.
• Never tighten or loosen hydraulic fi ttings while jack hydraulic
system is pressurized. Escaping oil under pressure can
penetrate the skin, causing serious personal injury.
• Keep hands, fi ngers and other body parts clear of pinch
points and moving parts when observing operation during
troubleshooting.
• To prevent injury, always be sure the jack air shut-off valve
is in the CLOSED position and that the air supply hose is
disconnected before beginning any maintenance, adjustment
or repair procedures. Be certain that any trapped pressure is
completely relieved as described in Section 7.2 of this manual.
Table 10 - Troubleshooting Guide
Solution
Cycle cylinder up and down several times to bleed trapped air.
Add Enerpac HF oil as required.
Check air pressure at fi lter/regulator. Increase regulator setting if pressure
shown on gauge is too low.
If necessary, increase volume of compressed air or increase size of supply
air line to meet airfl ow and pressure requirements.
Have hydraulic reservoir and intake screen fl ushed and cleaned by
Enerpac Authorized Service Center.
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.
Cycle cylinder up and down several times to bleed trapped air.
Add Enerpac HF oil as required.
Replace air muffl er.
Check all points where air might leak into system. Tighten, repair or replace
components as required.
Have hydraulic reservoir and intake screen fl ushed and cleaned by
Enerpac Authorized Service Center.
Have air motor inspected by Enerpac Authorized Service Center. Repair or
replace components as required.
Add Enerpac HF oil as required.
Drain oil from reservoir and refi ll with Enerpac HF oil.
Reduce cycling of cylinder. Allow time for oil to cool between lifts.
Reduce load or use a diff erent jack of higher capacity.
NOTICE: Oil may overheat if jack is overloaded, and oil runs over the relief
valve for a prolonged period of time.
Have hydraulic system inspected by Enerpac Authorized Service Center.
Repair or replace components as required.
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WARNING