Troubleshooting
Operation & Maintenance Manual
83
Complaint
Cause
Correction
6. High compressor oil
temperature
Ambient temperature above rated
ambient temperature range.
Operate in cooler environment.
Compressor tilted beyond out-of-level
operating limit.
Reposition or relocate compressor to
be more level.
Low compressor oil level.
Add compressor oil. Look for and
repair any leaks.
Wrong compressor oil.
Change compressor oil. Review
compressor oil specification.
Dirty cooler(s).
Clean exterior of cooler(s).
Dirty operating conditions.
Move compressor to cleaner
environment.
Clogged compressor oil filter(s).
Replace compressor oil filter(s) and
change compressor oil.
Loose or broken belts.
Tighten or replace belt set.
Operating pressure too high.
Reduce pressure to rated operating
pressure.
Recirculation of cooling air.
Close enclosure doors. Close and
secure access panels. Check for loose
or missing belly pans.
Malfunctioning compressor oil
thermostat.
Replace thermostat element in
conventional bypass valve, if equipped.
Loose or broken belts.
Tighten or replace belt set.
Replace valve.
Malfunctioning minimum pressure
valve.
Repair or replace valve.
Blocked or restricted oil lines.
Clean by flushing, or replace lines.
Airend malfunctioning.
See Complaints #11, #12.
g
p
,
7. Low engine speed
Clogged fuel filters.
Service fuel filters. See Engine
manual. Drain and clean fuel tanks.
Add clean fuel.
Operating pressure too high.
Reduce pressure to rated operating
pressure.
Clogged air filter element(s).
Clean or replace air filter element(s).
Wrong air filter element(s).
Install correct air filter element(s).
Engine malfunctioning.
See troubleshooting in Engine manual.
Airend malfunctioning.
See Complaints #11, #12.
8. Excessive vibration
Rubber mounting isolators loose or
damaged.
Tighten or replace.
Defective or imbalanced fan.
Replace fan.
Defective airend drive coupling.
Replace coupling.
Engine malfunctioning.
See troubleshooting in Engine manual.
Airend malfunctioning.
See Complaints #7, #11, #12.
Engine idle speed too low.
See Complaint #7. See Engine
manual.
Summary of Contents for HP450/VHP400WCU-T4i
Page 2: ...2 ...
Page 6: ...6 ...
Page 7: ...7 Foreword ...
Page 10: ...Operation Maintenance Manual Foreword 10 ...
Page 11: ...11 Safety ...
Page 21: ...Safety Operation Maintenance Manual 21 ...
Page 22: ...Operation Maintenance Manual Safety 22 ...
Page 23: ...Safety Operation Maintenance Manual 23 ...
Page 28: ...Operation Maintenance Manual Safety 28 ...
Page 29: ...29 Noise Emission ...
Page 35: ...35 General Data ...
Page 38: ...Operating Maintenance Manual General Data 38 ...
Page 39: ...39 Operating Instructions ...
Page 56: ...Operating Maintenance Manual Operating Instructions 56 ...
Page 57: ...57 Maintenance ...
Page 74: ...Operation Maintenance Manual Maintenance 74 ...
Page 75: ...75 Lubrication ...
Page 79: ...79 Troubleshooting ...
Page 99: ...Troubleshooting Operation Maintenance Manual 99 ...
Page 100: ...Operation Maintenance Manual Troubleshooting 100 ...
Page 101: ...103 Options ...
Page 107: ...Revision History Rev EC Number Comments A CN023581 Original release ...