3M -Matic a20 Instructions And Parts List page 34

11 - SET UP AND ADJUSTMENTS (continued)
11.5 Run Boxes to Inspect Adjustment
(Figure 11-6)
Important: Before starting the machine, verify that
no tools or other objects are on the conveyor bed.
Turn electrical switch to On to start drive belts.
Move box forward under upper taping head until it
is taken away by the drive belts. Always push at the
end of the box. If box is hard to move under head or
is crushed, raise the head slightly. If box movement
is jerky or stops under upper head, lower the upper
head slightly to add more pressure between box and
drive belts.
CAUTION
To reduce the risk associated with
•
pinch hazards:

Keep hands clear of the upper head support
assembly as boxes are transported through
the machine.

Keep hands, hair, loose clothing, and jewelry
away from box compression rollers.

Always feed boxes into the machine by
pushing only from the end of the box.

Keep hands, hair, loose clothing, and jewelry
away from moving belts and taping heads.
Note – The upper head has a unique feature for
overstuffed boxes. The head will raise up
to 13mm [0.5 inches] to compensate for
this condition.
Important – If drive belts are allowed to slip on
box, excessive belt wear will occur.
Refer to Figure 11-7 and adjust belt tension
as follows (for belt replacement and tension
specifi cations - refer to Section 13 / Maintenance
and Repairs):
1. Using a 17mm open end wrench, loosen, but do
not remove, the M10 lock nut.
2. Reset the tension on the drive belts as needed.
Adjust the M8 tension screws in (clockwise) to
increase tension or out (counterclockwise) to
decrease tension. Tighten lock nut to secure
tension setting.
a20-NA
Figure 11-5
Figure 11-6
Figure 11-7
24
2011 April