Rapid-Air STRAIGHTENER / RAPID-ROLL: SA3 - SD with compact control - Manual (Page 13)


maintenance
Rolls
Although the rolls should be cleaned
periodically they never have to
be greased as all the rolls have
permanently lubricated bearings.
Drive belt
At the oil change interval, check for
belt tension and wear.
Gear transmission
The reservoir oil capacity is about
4 oz. The reservoir oil should be
changed every 2000 hours and should
be filled to the oil level site gauge.
Use MoBiLe 600W cylinder oil or
equivalent. This is a non-synthetic oil.
Lubrication
once the straightener has been
tested and all the functions work,
then it should be tested for what it
was designed to do and that is to
remove coil set.
Retract all of the idler rolls and the
exit pinch roll to a position so when
the cover is closed the material is
not being deformed. open the cover
of the straightener and position the
edge guides for maximum width. Cut
and place about a four foot length of
the material onto the straightener
rolls with the exit end of the mate-
rial extending through the exit pinch
rolls and centered from side to side
in the straightener. Close the cover
and latch it. Adjust the exit pinch roll
enough to grip and hold the material.
Adjust the edge guides so that they
just touch the material.
Adjust the first idler roll knob, this is
the one nearest the entrance of the
straightener, so that it deforms the
material no more than the thickness
operation
of the material. Adjust the second
idler roll knob so it is lightly on the roll.
Run the material to check that the exit
pinch roll is not slipping on the mate-
rial, readjust if necessary. This piece
will still have coil set in the first two
feet of the material as it was not run
through the complete straightening
cycle. At this time, this piece could be
rerun and checked for straightness or
a new piece could be cut and run and
then be checked.
A good check is to guide the exiting
material, keeping it parallel to the rolls,
until the run is complete and then hold
one end of the material in the air while
peering down the length of the mate-
rial. if the material still has “coil set”
then readjust roll pressure on the last
roll, towards the exit end but before the
pinch roll, until the material is straight.
Run one or more short length setups
while making final adjustments. once
the proper setting has been deter-
mined, the quick release top maintains
the adjustment during loading.
Thread the material from the reel
through the straightener, under the
dancer arm, and into the pulling
device leaving ample loop between
the straightener and the pulling
device. if the material thickness is
such that when exiting the straight-
ener, it will not let the dancer arm
down to the rest position, then
either lengthen the dancer arm
or adjust the loop height until the
straightener stops feeding.
Set the % speed potentiometer
to 50% for a starting position and
start the pulling device to have the
material feeding. if the straightener
gets finished and stops before
material is needed again then
the straightener is set to feed too
fast, slow it down by adjusting
the % speed potentiometer. The
ideal straightening is to have the
straightener slightly exceed the
feed rate required. This minimizes
the starting and stopping and
resultant stock deformation.