HM126 Operator’s Manual
BALL PLUNGER ADJUSTMENT
If extending and retracting the guide arm is still difficult after adjusting the eccentric V-roller, the
ball plunger may require adjustment. Slide a wrench between the band wheel housing and ABG
carriage and loosen the ball plunger jam nut.
HM126-MY2021-EN: Rev F
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14-Jul-2021
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A
Jam Nut
Ball Plunger
Guide Arm
After adjusting the ball
plunger, slide the guide
arm in and out a few
t i m e s t o v e r i f y t h e
movement feels smooth
and that there is positive
engagement between
the ball plunger and
guide arm detents. If
not, adjust the ball
plunger with the hex key
again and repeat the
process until satisfied.
Once the guide arm is
moving well, tighten the
ball plunger jam nut.
Ensure there is a gap
between the ball plunger
housing and guide arm.
Adjust the ball plunger so
that only the ball is in
contact with the arm.
A
A
Open the band wheel housing
door and use a hex key to adjust
the engagement between the ball
plunger and guide arm.
The ball plunger should seat
smoothly into each guide arm
detent. It should take minimal
effort to move the arm.