08
4. Loosen and remove the HOLDDOWN
lock nuts.
5. Tighten the hold down NUTS fully tight, or set to
a torque value of 60MN (50 ft. lbs.)
6. After tightening, loosen the NUT 1/4 turn
(90 degrees).
7. Retighten the lock NUT.
8. INSTALL THE COVER, remove electrical power
lock outs, restore power.
9. Run a test piece.
-
If the stock slips in the rolls, tighten the hold down nuts. It may be necessary to tighten the 1
st
and 2
nd
HOLD DOWN nut unequally in order to obtain the desired result.
-
If the stock curls up after forming or shows extremely pressure marks, loosen the hold down
NUTS slightly.
*Do not adjust hold downs NUTS unless the stock slips in the rolls, pulls away from the entrance
gauge, or curls when exiting the rolls.
The Standard settings for the Auxiliary HOLD DOWN nuts are as follows:
1. Tighten the Auxiliary HOLD DOWN NUTS fully tight.
2. Loosen Auxilary HOLD DOWN NUTS
3
/
4
of a turn (270 degrees)
FORMTEK Machinery offers options for Auxiliary Rolls. Specific HOLD DOWN NUT adjustments
depend on which optional rolls are installed. The
3
/
4
turn specification may change depending on
the Auxiliary Rolls installed.
AUXILIARY ROLL HOLD DOWN NUTS
!
LOCK NUT
SPRING WASHERS
HOLD DOWN NUT
