Piper PA-28RT-201T - Page 333

29-00-02
Page 29-12
December 1, 1978
2C6
CHART 2901. HYDRAULIC SYSTEM TROUBLESHOOTING (cont.)
Pump fails to shut off Main gear down limit switch Adjust switch. (Refer to
though the gear has fully out of adjustment. Adjustment of Main Gear
extended. (cont.) Down Limit Switch,
Chapter 32.)
Main gear down limit switch Replace switch.
failed.
—NOTE—
The out of adjustment or failed switch may be determined by
noting which down light is not lit.
Pump running intermit- Leakage of high pressure Remove pump and replace
tently after gear has re- check valve. check valve.
tracted.
Internal leakage of system. Check auxiliary retraction
unit valve for internal
leakage.
Check gear actuating
cylinders for internal
leakage.
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 hydrolic lines.
Trouble Cause Remedy
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL