Table 4-1. Troubleshooting - continued
Oil leakage -
4. Internal shaft seal
worn or damaged.
5. Worn coupling shaft
Replace coupling shaft and seal.
and internal seal.
Significant loss of
1. Lack of sufficient oil
(a) Check for faulty relief valve
speed under load
and adjust or replace as
(b) Check for and repair worn
(c) Check for and use correct oil
for temperature of operation.
2. High internal motor
Replace worn rotor set.
3. Severely worn or dam-
Replace rotor set, drive link and
aged internal splines.
4. Excessive heat.
Locate excessive heat source in the
system and correct the condition.
5. Loose V-belt.
Tighten V-belt or replace.
1. Line blockage
Locate blockage source and repair
efficiency or undue
high pressure re-
quired to operate
2. Internal interference.
Disassemble unit, identify and reme-
dy cause and repair, replacing parts
3. Lack of pumping
Check for and repair worn pump.
4. Excessive binding or
Locate source and eliminate cause.
loading in system.
1. Belt slippage.
Tighten or replace, use correct belt.
2. Air leak in inlet plumb-
Disassemble, reseal, and reassemble.