Piper Cherokee Six Service Manual page 245

PIPER CHEROKEE SIX SERVICE MANUAL
TABLE VA-III. HYDRAULIC SYSTEM TROUBLESHOOTING (cont.)
Trouble Cause
Remedy
Pump fails to shut off
though gear has fully
retracted.
Pressure switch inop-
erative.
Replace switch.
Pressure switch out of
adjustment.
Pump retraction sole-
noid sticking (in-
board solenoid).
Internal leakage of
system.
Replace switch.
Replace solenoid.
Check back-up exten-
sion unit valve for
internal leakage.
Check gear actuating
cylinders for internal
leakage.
Check for internal dam-
age to hydraulic pump.
External leakage of
system.
Check back-up exten-
sion unit valve for
external leakage.
Check gear actuating
cylinders for external
leakage.
HYDRAULIC SYSTEM
Issued: 7/28/75
1K5