Thrush Aircraft S2R-R1340 Maintenance Manual page 212

THRUSH AICRAFT, INC - MODEL S2R-R1340
Table 10-1: ELECTRICAL TROUBLESHOOTING CHART (Continued)
TROUBLE
Starter produces
low RPM
10 - 10
AIRCRAFT MAINTENANCE MANUAL
STARTER (continued)
PROBABLE CAUSE
Low battery
High resistance starter
circuit
Defective starter motor
REMARKS
Check battery. Service and recharge
if necessary
Check resistance of each connection.
Maximum resistance at any
connection is 0.001 ohm. Inspect
connections for evidence of heating.
Clean and tighten connections as
necessary.
Check brushes, springs and
commutator. Replace brushes and
springs and clean commutator as
necessary.
Effective: 01/01/08