Rapid-Air STRAIGHTENER: SC SERIES - Manual (Page 11)

maintenance
Gear transmission
The reservoir oil capacity is about
4 oz. The reservoir oil should be
changed every 2000 hours and should
be filled the oil level site gauge. Use
mObIlE 600W cylinder oil or equiva-
lent. This is a non-synthetic oil.
rolls
although the rolls should be
cleaned periodically they never
have to be greased as all
the rolls have permanently
lubricated bearings.
Worm gear reducer
The reservoir oil capacity is about
4 oz. The reservoir oil should be
changed every 2000 hours and should
be filled 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, this is the
one nearest the entrance of the
straightener, so that it deforms the
material no more than the thickness
of the material. (nOTE: one full turn
on the roll adjustment screw is
operation
equal to about .050 roller movement)
adjust the remaining four in succes-
sion, each with a decreasing degree
of stock deformation until the fifth idler
roll just touches the material. Run the
material to check that the exit pinch
roll is not slipping on the material,
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 straighten-
ing 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 material. 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 determined, 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
straightener, 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 mate-
rial 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 poten-
tiometer. The ideal straightening
is to have the straightener slightly
exceed the feed rate required. This
minimizes the starting and stopping
and resultant stock deformation.