Warner Electric General Trouble Shooting - Manual (Page 4)

Switching
6. With normal input and no output, a problem
may lie in the switching. The switch
connections are shown on each drawing.
A voltage or resistance check at these points
will show whether or not the circuit is being
closed as the switch is actuated.
Mechanical Troubleshooting
Proper Assembly
Check the unit for proper assembly. See the
specific service manual that covers your unit.
Is the armature free to slide in and out axially?
Check the autogap installation.
Autogap Installation Instructions For
Automatic Adjustment of Armature
Clearance
Drive Pins
Are the drive pins screwed in tightly?
If the armature hangs up on the drive pins, the
pins may have worked loose or the hub was
incorrectly machined.
If the switching is done with an external relay,
the relay should be checked to make sure it is
actuating and making contact.
If the switching is done electronically inside the
control, it is recommended that the complete
control be replaced.
Machine Instructions For Gear, Sprocket or Pulley
A
B
C
D
All drive pins should have Loctite or an equivalent
thread sealant applied to the threads prior to
installation.
Unit Size A B C D
825 3.563 ± .001 3.085 ± .001
1000 5.252 ± .002 4.548 ± .002
1225 4.155 ± .002 5.877 ± .002
1525 6.010 ± .002 8.500 ± .002
Armature Boss
Straight Spring
(White)
Detent Spring
Retainer
Retainer
Ring
Detent
Spring
Drive Pin
Heavy
Spring
(Red)
Armature
Warner Electric • 800-825-9050 P-233 • 819-0451 4