Piper SARATOGA PA-32-301 Maintenance Manual page 362

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
REMOVAL AND REPLACEMENT OF CLUSTER MOUNTED INSTRUMENTS.
A cluster. located on the instrument panel. contains five individual instruments. Removal of these
instruments can be accomplished by the following procedure:
1. Remove the face panel by pulling the panel free from the retainers.
2. With the face panel removed. the clear plastic cover on theclusterassembly will beexposed. Remo e
the cover and cluster by removing the two mounting screws.
3. Remove the connection to the individual instrument to be removed and remove the instrument from
the cluster assembly.
4. Replace the instruments by reversing the removal instructions. Check all mountings and connect ions
for security.
FLIGHT INSTRUMENTS.
RATE OF CLIMB INDICATOR.
The rate of climb indicator measures the rate of change in static pressure when the airplane is climbing or
descending. By means of a pointer and dial this instrument will indicate the rate of ascent or descent of the
airplane in feet per minute. But due to the lag of the instrument, the aircraft will be climbing or descending
before the instrument starts to read and the instrument will continue to read after the aircraft has assumed level
flight. In rough air this should not be considered a malfunction.
CHART 3401. TROUBLESHOOTING (RATE OF CLIMB INDICATOR)
Trouble Cause Remedy
Pointer does not set on
7ero.
Pointer fails to respond.
Aging of diaphragm.
Obstruction in static line.
Reset pointer to zero
by means of setting
screw. Tap instrument
while resetting.
Disconnect all instruments
connected to the static line.
Clear line.
I Static input frozen over.
Water in static line.
Obstruction in static input.
Check individual instru-
ments for obstruction in
lines.
Clean lines and head.
34-10-01
Page 34-03
Revised: August 9. 1984
2D21