MTS Series 322 Load Frames - Manual (Page 92)

Series 322 Load Unit 92 Maintenance
Excessive torquing may shear off the adjustor pin eccentric.
Do not apply more than 12 lbf-in. (1.36 N•m) of torquing force to the adjustor
pin.
If the pin does not turn using very little force, proceed to Step C of this task.
B. Slowly rotate the adjustor pin until the actuator movement is reduced to
a minimum, and then go back to Step 2. If the pin does not turn using
very little force, proceed to the next step.
C. Reduce system pressure to low pressure (refer to the appropriate
controlling device product manual). Slowly rotate the adjustor pin until
the actuator movement is reduced to a minimum, and then proceed to
Step 4. If the adjustor pin still does not turn, proceed to the next step.
D. Ensure that system hydraulic pressure has been reduced to zero before
proceeding. To do this, turn off the hydraulic power unit and exercise
the actuator until it stops moving. Turn off electrical power to the
controller.
E. Remove the hex key and insert a 3/8-inch offset wrench over the self-
locking nut.
F. Insert a torque wrench with a 3/32-inch hex key head adapter into the
adjustor pin socket.
CAUTION