Lifting Arms 217
3 c. Both arms should be in contact with the bumpers installed on the end of the rail. If badly
worn, replace both bumpers.
3 d. Tighten both top adjustment nuts until you achieve the target measurement at the link
arms.
It is normal that the link arms are in contact with the bumpers; this is to ensure a stable position when
the truck is moving.
3 e. Raise the gripper to its upper position. Tighten both sides of the lower adjustment nut to
the target torque value.
3 f. Lower the gripper to verify that the link arms are in contact with the bumpers and that the
target values are still right. Operate the Right Hand
TM
arm or the Right Hand HD
TM
arm up
and down to verify smooth operation.
3 g. Reinstall the nut retainers (if applicable) and all access covers.
4. Raise the gripper to its highest position.
5. Check the lower chains for any slack. Adjust the chains if necessary by following the procedure
described in step 3.
Arm Model Target Measure
Right Hand
TM
6-1/4”
Right Hand HD
TM
6-9/16”
Arm Model Target Torque
Right Hand
TM
40 lbs-ft
Right Hand HD
TM
80 lbs-ft