Starter - Thrush Aircraft S2R-R1340 Maintenance Manual

THRUSH AICRAFT, INC - MODEL S2R-R1340
Table 10-1: ELECTRICAL TROUBLESHOOTING CHART (Continued)
TROUBLE
Zero or low
voltage indicated
No alternator
output
Volt-ammeter
does not indicate
TROUBLE

Starter

inoperative
Effective: 01/01/08
AIRCRAFT MAINTENANCE MANUAL
ALTERNATOR
PROBABLE CAUSE
Loose connection
Defective voltage
regulator circuit
Alternator circuit breaker
tripped or 130 amp buss
limit fuse blown
Improper connections
Defective alternator
controls switch
Continuity.
Defective wiring
Defective meter
STARTER
PROBABLE CAUSE
Circuit breaker tripped
Low battery
Starter relay inoperative
Battery relay inoperative
Loose connection or
faulty ground in starter
power circuit
Defective starter motor
REMARKS
Check connections throughout
system
Adjust or replace regulator
Check for short circuit and reset
circuit breaker and / or replace buss
limit fuse
Check connections against wiring
diagram
Check switch for proper operation
and replace if necessary.
Continuity. Check wiring and repair
as necessary
Replace meter
REMARKS
Check for short circuit and reset
circuit breaker
Check battery. Service and recharge
as necessary
Check relay for operation and replace
if necessary
Check relay for operation and replace
if necessary
Continuity. Check and repair starter
as necessary
Check brushes, springs and condition
of commutator continuity. Check
starter windings for open or short
circuit. Repair or replace
10 - 9