Figure 3
Adjusting Torque
Generally, this should be done while the unit is firmly and properly mounted in place. The exception to
this is when the adjustment must be done prior to mounting due to space limitations. This can be
accomplished by restraining the housing and adjusting the end cap with a spanner wrench while rotating
either the output shaft (brake) or input member (clutch).
NOTE:
This is a magnetically strong unit. Always take extreme caution while adjusting. It is
recommended that one person adjust unit with a spanner wrench, while a second person moves prime-
mover output shaft.
Torque Adjustment Procedure
:
These units are designed to use a standard 4” spanner wrench with 3/8” pins.
1.
Make sure system is at a complete stop.
2.
Loosen by one turn the four socket-head cap screws “B” located on curved slots (see Figure 4)
a. On
BRAKE
units, use spanner wrench to carefully hold Perma-tork magnets while making
adjustment.
b.
On
CLUTCH
units, the Perma-Tork housing must first be securely RESTRAINED in order to
make adjustments. Use spanner wrench to carefully make adjustment.
3.
Starting slowly, rotate prime mover or output shaft while making torque adjustment to eliminate
possible cogging. (see note below)
4.
After adjusting unit, tighten adjustment screws and remove spanner wrench.
Motor/Prime Mover
Shaft
Coupling
Clutch
Flexible
Coupling