Enerpac PL200 Serie Manual De Instrucciones página 17

Symptom Possible Cause
4. Motor does not run a. Air supply valve in the CLOSED
when either pendant position.
button is depressed.
b. Insuffi cient compressed air pressure.
c. Insuffi cient compressed air volume.
d. Air muffl er restricted by ice or debris.
e. Moisture in compressed air causing
ice formation in motor.
f. Pendant damaged.
g. Pneumatic control circuit components
leaking, worn, damaged or out of
adjustment.
h. Hydraulic system components
leaking, worn, damaged or out of
adjustment.
i.
element seized.
5. Motor starts when a. Insuffi cient compressed air pressure
pendant UP or DOWN or volume.
button is depressed,
but cylinder does not
move, or moves only a
small amount.
b. Air muffl er restricted by ice or debris.
c. Jack is overloaded.
NOTICE: When
d. Cylinder hydraulic control valve not
pendant DOWN
shifting.
button is depressed,
the cylinder will
move upward a
small amount before
e. Lock nut spin-up sensor dirty
retraction begins. This
or plugged (this symptom is applicable
is normal operation.
to the cylinder advance circuit only).
f. Cylinder lock nut not turning.
g. Pneumatic system air line lubricator is
overfi lled.
h. Pneumatic control circuit components
leaking, worn, damaged or out of
adjustment.
i. Hydraulic system components leaking,
worn, damaged or out of adjustment.
6. Cylinder advances a. Proximity-2 lock nut position sensor
when pendant DOWN dirty or plugged.
button is depressed.
b. Pneumatic system air line lubricator
is overfi lled.
Table 10 - Troubleshooting Guide (Continued)
Motor physically locked and/or pump
Solution
Move valve lever to the OPEN position. Check that fi lter/regulator gauge
indicates pressure.
Check air pressure at fi lter/regulator. Increase regulator setting if pressure
shown on gauge is too low. Do not exceed 120 psi [8,3 bar].
If necessary, increase volume of compressed air or increase size of supply
air line to meet airfl ow and pressure requirements.
NOTICE: If pressure gauge reading drops a large amount (more than about
40 psi [2,75 bar]) when either pendant button is depressed, it is an indication
that the available compressed air volume may be too low.
Check air muffl er for ice or debris. Replace muffl er if clogged.
Refer to step 10 of Troubleshooting chart if ice is present.
Be sure that compressed air is clean, dry and free of water.
Refer to step 10 of Troubleshooting chart if ice formation is present or
suspected.
Have pendant assembly inspected by Enerpac Authorized Service Center.
Repair or replace components as required.
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.
Have air motor, hydraulic pump and related components inspected by
Enerpac Authorized Service Center. Repair or replace components as
required.
Check air pressure at fi lter/regulator. Increase regulator setting if pressure
shown on gauge is too low. Do not exceed 120 psi [8,3 bar].
If necessary, increase volume of compressed air or increase size of supply
air line.
Check muffl er for ice or debris. Replace muffl er if clogged.
Refer to step 10 of troubleshooting if ice formation is present.
Reduce load or use a diff erent jack of a higher capacity.
Have control valve inspected by Enerpac Authorized Service center. Repair
or replace components as required.
NOTICE: A manual override pin is located on each end of the valve. These
overrides can be used to shift the valve to test cylinder retract and extend
operation.
Have lock nut spin-up sensor checked by Enerpac Authorized Service
Center. Verify that sensor ports and air lines are not dirty or blocked.
Refer to step 9 of troubleshooting.
Drain excess lubricant from air line lubricant bowl. Do not operate jack for
8 to 12 hours to allow excessive lubricant to clear 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.
Have Proximity-2 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.
(Continued on next page)
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