Starter Amp Draw Test; Seat Switch Test - Sabre 1338 Gear Technical Manual

TESTS AND ADJUSTMENTS

STARTER AMP DRAW TEST

Reason:
To determine the amperage required to crank the
engine and check starter motor operation under load.
Equipment:
• Battery Tester
• Photo Tachometer
Connections:
1. Put transaxle in neutral. Engage park brake.
2. Test system ground connections and battery.
3. Turn knob (A) of tester counter-clockwise to off.
4. Connect red clamp of battery tester to positive
terminal of battery and black clamp of tester to
negative terminal of battery.
5. Install tachometer reflective tape on flywheel
screen.
6. Remove spark plug high tension lead and ground to
engine.
Procedure:
1. Crank engine and read voltage on DC voltage scale
of battery tester and check engine rpm.
2. Turn key switch to off position.
IMPORTANT:
within 15 seconds to prevent electrical damage
to components.
3. Turn knob of battery tester clockwise until the DC
voltage is the same as when cranking.
4. Read DC amperage on battery tester.
5. Turn load knob fully counterclockwise.
Specifications:
Maximum starter amp draw
. . . . . . . . . . . . . . . . . . . . . . . . 180 amps at 225 rpm
Results:
• If amperage is above specification, or rpm is low,
check starter for binding or damaged.
• If starter is good, check internal engine, traction or
PTO drive for binding or damage.
3/5/97
www.servicemanualall.com
A
Perform the following procedure

SEAT SWITCH TEST

Reason:
To ensure proper operation of seat switch.
Equipment:
• Ohmmeter
Procedure:
1. Park machine on level surface and turn key switch
OFF.
2. Shift lever in NEUTRAL and park brake LOCKED.
3. Disconnect harness connector from seat switch.
A
4. Check continuity across switch terminals (A) and
(B).
Results:
• There should BE continuity between terminals (A
and B) when seat is RELEASED,
• There should NOT BE continuity between terminals
(A and B) when plunger is DEPRESSED.
• If continuity is NOT correct, replace switch.
NOTE: The seat switch connector has an interlock
spring which shorts the 3 wires together when
removed from seat switch terminals. Check
that spring mechanism is releasing properly
when center tab is depressed.
ELECTRICAL
B
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