Engine Oil Pressure Gauge; Engine Fuel Pressure Gauge - Thrush Aircraft S2RHG-T65 TURBO THRUSH Maintenance Manual

THRUSH AIRCRAFT INC – MODEL S2RHG-T34 TURBO THRUSH
PROBLEM
Gauge has erratic
operation
Gauge does not
register
Gauge pointer fails to
return to zero
Gauge does not
register properly
Gauge inoperative or
erratic. Low pressure
or flow registered.
Fuel pressure or fuel
flow registered is
high, low or erratic
8-10
AIRCRAFT MAINTENANCE MANUAL
PROBABLE CAUSE

ENGINE OIL PRESSURE GAUGE

Worn or bent
movement
Dirty or corroded
movement
Pointer bent and
rubbing on dial, dial
screw or glass
Pressure line clogged
Leak in pressure line
Pressure line broken
Pointer loose on staff
Damaged gauge
movement
Foreign matter in line
Faulty mechanism

ENGINE FUEL PRESSURE GAUGE

Restricted, broken or
leaking line
Vapor in fuel line
Faulty relief valve in
engine-electric driven
pump(s) or defective
pump(s)
REMEDY
Replace instrument.
Replace instrument.
Replace instrument.
Check line for obstructions. Clean
line.
Check line for leaks and damage.
Repair or replace damaged line.
Check line for leaks and damage.
Repair or replace damaged line.
Replace instrument.
Replace instrument.
Check line for obstructions. Clean
line.
Replace instrument.
Clear and clean line. Tighten
fittings or replace, if necessary.
Start and run engine until
instrument registers normally.
See fuel pump in Power Plant
Section for replacement or relief
valve adjustment instructions.
Effective: 05/05/04