7
PRINCIPLES OF OPERATION
LOADING AND FEEDING STRAP
With the ON-OFF switch in the OFF position,
insert strap between rollers into stretch-out box
and then into entry chute until resistance is felt.
Open left hand eccentric arm (167) (push
eccentric arm in counter clockwise direction) and
then push strap an inch or so further until once
again resistance is felt. Release eccentric arm
and turn machine on.
TENSIONING AND WELDING
With a bundle in the proper position, step on the
footswitch, the machine will now run in the feed
direction until the chute is filled. When the chute
is full, the leading end of the strap hits a stop.
Since the motor is still attempting to feed more
strap into the chute, The excess strap folds up
into the drop out arm chamber and causes the
drop out arm (159) to swing open. This trips a
limit switch signaling the motor to reverse. The
same signal also actuates a solenoid operated
gripper (103) which grips the free end of the
strap.
The machine now tensions strap and, as soon as
pre-set tension is reached, a mechanical clutch
(47) shifts over to engage the welding cycle gear
train. As soon as the welding cycle is completed,
switch cam (215), located on the cam shaft, trips
the limit switch to reverse the motor direction,
shift clutch, and refill the strap chute
approximately 3/4 full.
HOME POSITION
For home positioning, both face gate (126) and
vibrator (134) must be fully closed. To bring
machine into home position, turn off power and
turn cam shaft with crank provided, in
counterclockwise direction, until face gate and
vibrator are closed. Note that turning effort
drops sharply when this point is reached.
Remove and store crank. Failure to do so can
result in severe personal injury.
TENSION ADJUSTMENT
Tension can be adjusted by turning the hand
wheel (96) located on the machine frame. Full
tension range is covered in approximately 1 1/2
turns of the adjustment wheel.
WELDING WITHOUT BUNDLE
If the machine is tripped without a bundle in
place, the strap will be tensioned around the
vibrator (134), welded, and sometimes broken.
When this happens, the machine must be shut off
and the strap pulled out. The ragged end of the
strap must be cut off and the machine
rethreaded.
For Parts & Service 1-877-862-6699
WWW.TRADITIONALTOOL.COM
Содержание MCD-310
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