Starter Motor Malfunction; Malfunction In The Engine Starting Circuit; Alternator - Carrier Supra 950MT Operation & Service Manual
Truck refrigeration units with cab command controller
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Also See for Supra 950MT:
- Operation and service manual (92 pages) ,
- Operator's manual (42 pages)
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6.1.3
Starter Motor Malfunction
Starter motor will not
crank or turns slowly
Starter motor turns but pinion
does not engage
Starter motor does not disen-
gage after switch was de-
pressed
Pinion does not disengage
after engine is running
6.1.4
Malfunction In the Engine Starting Circuit
No power to starter motor so-
lenoid (SS)
Run solenoid does not ener-
gize or does not remain ener-
gized
6.2
ALTERNATOR
Alternator fails to charge
Low or unsteady charging
rates
62-11863
Battery insufficiently charged
Battery cable connections loose or oxidized
Battery cables defective
Starter brushes shorted out
Starter brushes hang up or have no contact
Starter solenoid damaged
Start/Run - Off switch defective
Engine lube oil too heavy
Pinion or ring gear obstructed or worn
Start/Run - Off switch defective
Starter motor solenoid defective
Defective starter
Battery defective
Loose electrical connections
Battery defective
Loose electrical connections
Oil pressure safety switch (OP) defective
Run relay (RR) defective
Water temperature safety switch open
Water temperature sensor (WTS) defective
Run solenoid defective
Start/Run - Off switch defective
Unit has not run long enough to completely charge
Limited charging system operating time
Battery condition
Alternator belt loose/broken
Loose, dirty, corroded terminals, or broken leads
Excessively worn, open or defective brushes
Regulator faulty
Alternator internal component failure
Alternator belt loose
Loose, dirty, corroded terminals, or broken leads
Excessively worn, sticky or intermittent brushes
Faulty regulator
Alternator internal component failure
6-2
Check
Check
Replace
Engine Manual
Engine Manual
Engine Manual
Replace
2.7.2
Clean both, re-
move burrs, or re-
place;
apply
grease
Replace
Engine Manual
Engine Manual
Check
Tighten
Check
Tighten
Replace
Replace
2.8
Replace
5.2.3
Replace
Check
Check
Check
5.3
Check/Repair
Check
Check
Replace
5.3
Check/Repair
Check
Check
Replace
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