Piper PA-28RT-201T - Page 332

29-00-02
Page 29-11
December 1, 1978
2C5
CHART 2901. HYDRAULIC SYSTEM TROUBLESHOOTING (cont.)
Pump fails to shut off Internal leakage of system. Check back-up extension
though gear has fully unit valve for internal
retracted. (cont.) leakage.
Check gear actuating
cylinders for internal leakage.
Check for internal damage
to hydraulic pump.
External leakage of system. Check back-up extension
unit valve for external
leakage.
Check gear actuating
cylinders for external
leakage.
Check for broken or
damaged hydraulic lines
or hoses.
Pump relief valve out of Replace pump.
adjustment.
Pump fails to shut off Pump extension solenoid Replace solenoid.
though the gear has fully sticking (outboard sole-
extended. noid).
Nose gear down limit switch Adjust switch actuator.
actuator out of adjustment. (Refer to Adjustment of
Nose Gear Down Limit
Switch, Chapter 32.)
Nose gear down limit switch Replace switch.
failed.
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL