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Service and Repair Manual
Model 845S
8
ELECTRICAL TESTING
Electrical test
Before assemby all electrical parts MUST be checked for safety, and that they conform to specification.
Testing the Armature (Flash Testing)
A Armature shaft to lamination pack 1500 Volts (min)
B Lamination pack to commutator 1200 Volts (min)
C Armatuure shaft to commutator 3000 Volts (min)
ELECTRICAL PERFORMANCE TEST READINGS
CLUTCH SLIP
Measured on disassembly/assembly 35/45ft lbs 47/61Nm. (Non Electrical Test)
Note: On all test readings + or -5% of figures shown is acceptable.
845S
845S
MODEL
110V 120V 220V-240V
ARMATURES
.440/.506 Ohms .440/.506 Ohms 1.283/1.477 Ohms
FIELD COILS
845S
110V 120V 220V-240V
4.5/6.5 Amps 4.5/6.5 Amps 2.9/4.4 Amps
.349/.401 Ohms .349/.401 Ohms 1.339/1.54 Ohms
PERFORMANCE
110V 120V 220V-240V
Running No Load