Load Test

Batteries must be fully charged and serviceable before performing a starter load test.
1. Set parking brake and shift transmission into neutral.
2. Prevent engine from starting by disconnecting wiring at ignition coil.






3. Connect Rotunda Alternator, Regulator, Battery, and Starter Tester (ARBST) 010-00725 or equivalent. Make sure that current is not flowing through ammeter and heavy-duty carbon pile rheostat portion of circuit (rheostat at maximum counterclockwise position).
4. Connect remote starter switch across starter relay S and battery terminal.
5. Key to RUN.
6. CRANK engine and determine exact reading on voltmeter.
7. Stop cranking engine and reduce resistance of carbon pile until voltmeter indicates same reading as that obtained while starter motor cranked the engine. The ammeter will indicate starter current draw under load. Check this with value listed in Starter Specifications.

STARTER SPECIFICATIONS
Starter Motor
Motor Diameter 101.6 mm (4 Inches)
Current Draw Under Normal Load 130-220 Amps
Normal Engine Cranking Speed 140-220 RPM
Min. Stall Torque @ 5 Volts 14.7 Nm (11.0 ft lb)
Load
Max. Load 800 Amps
No Load 70 ± 10 Amps
Starter Brushes
Mfg. Length 16.8 mm (0.66 Inch)
Spring Tension 18 N (64 oz.)

NOTE: Maximum commutator runout is 0.12 mm (0.005 inch). Maximum starting circuity voltage drop (battery positive terminal to starter terminal) at normal engine temperature is 0.5 volt.