Kango 900 - Electrical Testing Procedures; Armature Flash Testing; Field Coil Testing

23
Service and Repair Manual
Model 900/950/990
ELECTRICAL TESTING
ELECTRICAL PERFORMANCE TEST READINGS
Before assembly all electrical parts MUST be checked for safety, and that they conform to specification.
The recommended test voltage should be applied as follows:
1. Apply half the recommended test voltage and increase to the full recommended test voltage as rapidly
as possible.
2. The full recommended test voltage should be maintained for two to three seconds without the insulation
failing.
A Armature shaft to commutator bush 1250 volts increasing to 2500 volts
B Lamination pack to armature shaft 1250 volts increasing to 2500 volts
C Commutator segments to commutator bush 750 volts increasing to 2500 volts
Connect all the field coil leads together and apply one test probe to the leads and one to the laminations.
Set the test voltage to 750 volts increasing to 1500 volts.
Clutch Slip Test
Note:- On all test readings + or - 5% of figures shown is acceptable.
Testing the
armature
(Flash
Testing)
Field coil
testing
WARNING: IF EITHER THE ARMATURE OR FIELD COIL FAILS THE PREVIOUS TESTS THE
COMPONENT MUST BE CHANGED.
AC B
ARMATURES
MODEL 100V 110V 120V 220V 240V
900 K/B/V Ω 0.514 Ω 0.66 Ω 0.66 Ω 2.84 Ω 3.04
950 K/S Ω 0.514 Ω 0.66 Ω 0.66 Ω 2.84 Ω 3.04
FIELD COILS
100V 110V 120V 220V 240V
900 K/B/V Ω 0.36 0.45 Ω 0.56 Ω 1.88 Ω 2.57
950 Ω 0.36 0.45 Ω 0.56 Ω 1.88 Ω 2.57
PERFORMANCE
Full Load Hammer Test
100V 110V 120V 220V 240V
900K/B/V 850 - 900 W
950K/S 850 - 900 W
100V 110V 120V 220V 240V
950K/S 1300 - 1400 W