ZENAIR CH2000 SERVICE MANUAL
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OPTIONAL INSTRUMENTS - Fig. 21
RATE OF CLIMB INDICATOR
GENERAL
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.
TROUBLESHOOTING See following table:
RATE OF CLIMB INDICATOR
Trouble
Cause
Remedy
Pointer does not set on zero.
Aging of diaphragm.
Reset pointer to zero by means
of setting screw. Tap
instrument while resetting.
Pointer fails to respond.
Obstruction in static line.
Disconnect all instruments
connected to the static line.
Check individual instruments
for obstruction in lines.
Pointer oscillates.
Leaks in static lines.
Defective mechanism.
Disconnect all instruments
connected to the static line.
Check individual instruments
for leaks. Reconnect
instruments to static line and
test installation for leaks.
Replace instrument.
VACUUM SYSTEM - Fig. 21 and Fig. 22
GENERAL
The vacuum system employed to operate the gyro instruments is comprised of an engine driven
dry vacuum pump, vacuum regulator valve, and the necessary tubing to complete the system.
VACUUM GAUGE
The vacuum gauge is mounted above the gyro instruments. This gauge is calibrated in inches of
mercury and indicates the amount of vacuum created by the engine driven vacuum pump.
9.8
3 Apr 95
