STARTER DRAW TEST
For proper starter functioning, it is important that all related connections
are clean and tight, and that the cable and its insulation are in good
condition.
On all starter circuit tests, disable ignition circuit by one of the
following methods:
1. DETERMINING THE LOADED VOLTAGE USING THE STARTER:
Crank engine and observe the voltmeter reading. Do not crank
engine over 7 seconds at one time to eliminate possible damage to
starter windings.
2. CHECKING THE AMPS USING THE TESTER TO DELIVER THE
SAME LOADED VOLTAGE: The tester is used as a load to simulate
the starter load. This is done by applying a load until the voltage
drops to the same voltage observed while cranking the engine. Thus,
the tester load amps indicated in the black 0-800 scale are the same
as the starter amp load. Read amps indicated on the scale while
load is applied (see example on page 11). This is the starter-draw
current. Compare amp draw to manufacturer specications.
• STD. IGNITION- (Points & Cond.): Ground coil output.
• ELEC. IGNITION- (Module): Disconnect 12V power supply.
• DIESEL: Disconnect 12V power supply to fuel shut-off
solenoid.
The battery voltage will drop when it is loaded by the starter or with the
tester. The Amp reading (when the tester yields the same loaded voltage
as the starter) is the starter draw.
10
15
2
LOAD VOLTS SAME
AS STARTER VOLTS
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