SX™
Service and Maintenance Manual 3-74
960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
FILM FEED ASSEMBLY
FILM FEED DRIVE MOTOR (con’t)
3. Lift the motor upwards to remove the pulley
from the belt. Carefully slide the motor out of
the machine through the opening exposed by
the load plate.
4. Remove the pulley from the old motor and
reinstall on the new motor.
Note location and
orientation of pulley on motor shaft, and
duplicate when installing on new motor.
Be
sure to tighten the pulley set screws on the
machined flat areas of the motor shaft.
5. Install the motor into the machine. The motor
should be oriented such that the plug and wire
pigtail are to the back of the machine. Do not
tighten the screws at this time, as the film feed
belt needs to be tensioned.
6. Plug the motor cable into the quick disconnect
harness.
7. Apply downward pressure on the motor to
tension the belt. At proper tension, the belt
should deflect about 3/32” at the center of belt
span using one finger to push the belt. When
proper tension is achieved, tighten the four
motor mounting screws.
8. Reinstall guards removed in step 1.
CRADLE LOCK CAMS
Note: Earlier models of the Sharp SX
are
equipped with latch pins in the place of cam
followers. If the latch pins need replacing, the latch
mechanism needs to be upgraded to the cam
followers. This procedure is best completed at
Sharp Packaging Systems’ facility by our service
personnel because substantial machine
disassembly is required.
1. Turn the cam follower (shown in Figure 3-187)
by hand, ensuring it spins smoothly with no
spots that stick. Also check that it is free of
lateral movement.
TESTING
Figure 3-187. Cradle Latch
Cam Follower
Cradle Latch Lever
Always remove electrical power from the
SX
prior to performing any maintenance
on the machine.
WARNING