Specifications

RotorWay International

Exec 162F Maintenance Manual

Rev. 3 6/04

Section 15: Instrumentation

Instrumentation on the EXEC 162F is normally maintenance free. It is, however, extremely important to keep it in perfect

operating condition. The instrumentation provides the pilot continuous information on all the helicopter systems conditions.

NOTE: If a transponder is used, a static air port must be incorporated into the system. (Check transponder installation

information.)

SERVICE NOTES:

1. To check the water temp or oil temp sender:

A. Make certain all connections are clean and secure.

B. Disconnect the sender leads from the gauge, cool or heat the probe to a known temperature then check the

resistance. See the chart below.

32 deg f = 9800 ohms

70 deg f = 3570 ohms

100 deg f = 740 ohms

212 deg f = 212 ohms

C. To test the operation of the gauge, disconnect the sender leads from the gauge and substitute the sender with a

resistor of the appropriate value that you wish to check from the list above (i.e. 615 ohms is 150 deg f.)

D. If sender lead goes to ground, meter should peg full scale.

E. If sender lead is open (broken) or sender is open internally meter should peg hard to the left. Slight needle

movement to the left is normal when the temperature is below the starting point of the gauge.

INSPECTION CHART

PART NO.

E36-1100 Hour Meter 100 HR OC

E36-1120 Water Temperature Gauge 100 HR OC 15-1

E36-1160 Oil Temperature Gauge 100 HR OC 15-1

E36-3110 Oil Pressure Gauge 100 HR OC

E36-3120 Oil Pressure Sender 100 HR OC

E36-1220 Volt Meter 100 HR OC

E36-3002 Dual Engine/Rotor Tach 100 HR OC

E36-4010 Altimeter 100 HR OC

E36-4020 Vertical Speed Indicator 100 HR OC

E36-4030 Air Speed Indicator 100 HR OC

E36-4040 Compass 100 HR OC

E36-4050 Manifold Pressure Gauge 100 HR OC

E36-4111 Full Range Tach 100 HR OC

E36-3050 Fuel Pressure Gauge 100 HR OC

E25-4940 Fuel Pressure Sender 100 HR OC

E36-1230 Secondary Temp Gauge 100 HR OC

E36-1240 Secondary Temp Gauge Sensor 100 HR OC

DESCRIPTION

SERVICE

REFERENCE

INSPECTION

INTERVAL

R.C.O.