PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 2
Nov 30/06
5F2
79-30-00
C. Switch
(1) Removal
(a) Gain access to the switch from under the pilot’s (left) instrument panel.
(b) Disconnect electrical connector.
NOTE: There will be some residual oil in the line leading to the sender and switch.
Provide a means to catch any spillage that may occur when switch is removed.
(c) Using a back up wrench on the union tee, remove oil pressure switch.
(2) Installation (Ensure fittings do not leak.)
(a) Wrap switch threads with teflon sealant tape (3M-Teflon No. 48 x 1/4”).
(b) Install switch to union tee and finger tighten.
(c) Using a back up wrench on union tee, snug switch to tee.
(d) Join electrical connector.
(e) Perform operational check. Ensure fittings do not leak.
Trouble Cause Remedy
CHART 1
TROUBLESHOOTING OIL PRESSURE GAUGE
Excessive error at zero. Pointer loose on shaft. Replace instrument.
Excessive scale error. Improper calibration adjustment. Replace instrument.
Excessive pointer oscillation. Air in line or rough engine relief. Disconnect line and fill with
light oil. Check for leaks. If
trouble persists, clean and
adjust relief valve.
Bad oil pressure sender. Replace sender.
Bad instrument. Replace instrument.
Sluggish operation of pointer Loss of oil pressure. Immediately shut down
or pressure fails to build up. (stop) engine.
Engine relief valve open. Clean and check valve.
Bad oil pressure sender. Replace sender.
To Next Page
Loading...
