Troubleshooting guide

16
Clutch-Brake Maintenance
Always disconnect the power supply before
making any adjustments or servicing the stitcher.
WARNING
!
This stitcher is equipped with a solenoid actuated, continuous trip, wrap spring clutch-brake
unit. It is a dependable device and seldom needs service. But should a malfunction occur, the
following information is a service and troubleshooting guide for maintenance of this unit.
Actuator
The actuator is a simple, straight-forward mechanical linkage. When the actuator does not
trip, the following checks should be made:
PROBLEM CAUSE AND REMEDY
No Power to the Coil Check all wiring and switching in
the Clutch Actuation System
Lack of continuity Replace the Coil
in the Coil windings
The Coil may have shifted, or the
Plunger end may have mushroomed
Mechanical binding of the Plunger due to striking the backstop. In the
latter, the plunger may be filed or
turned to its true diameter
Insufficient clearance of the Adjust the linkage as needed
Actuator over the Stop Collar
Actuator loaded by the Stop Collar Breaking force is exceeding the limits
so hard that the Actuator cannot of the Brake, or the differential
be pulled by the Coil setting of the unit is too close (see
Assembly/Disassembly instructions)