SX™
Service and Maintenance Manual 3-113
960714-02 © 2007 I2407
SECTION 3 – COMPONENT REPAIR
SEALER ASSEMBLY
PRESSURE BAR DRIVE MOTOR
1. The wire for the pressure bar motor has a quick
disconnect plug about 5 inches from the motor.
Ensure the plug is completely inserted into the
receptacle.
2. Using a Digital Volt/Ohm Meter (DVOM), first
check continuity on the motor at the pressure
bar stepper drive. Use the following step to do
this.
a. Remove the four screws shown in
Figure 3-278 to remove front load
plate.
b. Locate the pressure bar stepper drive
(Figure 3-279).
c. On the right-rear corner of the drive are
the motor cable terminals. Check
continuity between terminals 1 and 2, 1
and 3, and 2 and 3. Also check
continuity between terminals 4 and 5, 4
and 6, and 5 and 6 (refer to figure 3-
280 for terminal identification). If all six
tests for continuity pass, the motor is
not faulty and other troubleshooting
techniques need to be followed. (Refer
to
(Pressure Jaw and Film Feed
Motor Controllers
for information on
how to check the stepper drive).
TESTING
Always remove electrical power from the
SX
prior to performing any maintenance
on the machine.
WARNING
Figure 3-278. Load Plate Screws
Figure 3-279. Pressure Bar Drive Location
Pressure Bar
Stepper Drive
Figure 3-280. TM4500 Configuration
6 5 4 3 2 1
Motor Cable
Terminals