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Signature Service Manual
© 2011, IMI Cornelius Inc. - 29 - Publication Number: 621058426SER
Figure 40. Control Board Power Connector
Table 17.
Step Procedure
1 Disconnect power from the unit.
2 Remove internal magnet, if installed.
3 Remove the side panels and the rear access panel from the unit. (See Figure 39.)
4
On the left side of the unit, remove the Control Board cover by loosening the
mounting screws, from each side of the cover and lifting the cover off the two tabs
at the top, as shown in Figure 36 on page 27.
5 Disconnect the motor connector from the control board, as shown in Figure 40.
6 Remove the motor wiring from the wiring clips.
7
Remove the nuts from the left and right mounting set screws securing the motor/
magnet assembly to the mounting bracket, as shown in Figure 38 on page 28.
8 Pull the motor/magnet assembly out the rear of the unit.
9 Remove the bolt from the center front of the magnet, as shown in Figure 41.
10 Loosen the set screw on the side of the magnet collar, as shown in Figure 42.
11 Remove the magnet from the motor shaft.
12 Remove the four (4) mounting bolts and bracket from the motor, as shown in Figure 43.
13
Mount the new motor on the bracket using the four (4) 1/4-28 bolts and torque to
94 in-lbs.
14
Mount the magnet on the motor shaft and tighten the 1/4-20 bolt in the center of
the magnet to 75 in-lbs. (See Figure 41.)
15 Tighten the set screw on the side of the magnet collar, as shown in Figure 42.
16 Reroute the motor wiring using the wiring clips provided.
17
Replace the motor/magnet assembly into the unit through the rear motor access
panel.
18 Reconnect the motor connector to the PCB and replace the Control Board cover.
19 Finish tightening the motor mounting nuts completely. Tighten to 75 in-lbs.
20 Replace the motor access panel at the rear of the unit.
21 Reinstall the side panels onto the unit.
22 Reconnect power to the unit.
23 Verify that the system is set to the correct motor type.
24 Perform the “Motor Calibration” on page 30.
Motor Power
Connector