Wiring Diagram
Connector
Cord w/Plug
Trouble Shooting of Brake by Qualified
Service Person Only
1. Check commutation at no load. If there is a heavy
sparking which follows the curvature of the commuta-
tor: replace the armature.
2. To continue trouble shooting, now unplug the power
cord.
3. Install service brushes, especially if delayed come-in of
brake has been noticed before failure.
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White
Field
Lead
White
Gray Brake Lead
Black
27
Red
N.C.
N.O.
Switch
4. Check brake circuit for continuity: remove brush caps
and brushes. Use ohmmeter to check continuity from
brass brush holder to brush holder. If open, locate
exact place using ohmmeter. As indicated by test,
tighten connection or replace field assembly or replace
switch.
5. After repair, check direction of blade rotation vs. guard
arrow.
Red
Brush
Lead
Brush
Armature
Brush
White
Brush
Lead