Valleylab CUSA EXcel-8 - Page 176

Irrigation Pump Head and Gear Motor
5. Disconnect the gear motor ground wire from the frame.
6. After disconnecting the gear motor from the contro] card, push the
bracket back in the frame and secure it with a minimum of one M4 hex
nut.
7. Remove the four screws and four lock washers (M5 Phillips) that
attach the gear motor bracket to the console frame.
8. Pull the gear motor and its bracket forward and remove them from the
frame.
9. Remove the four screws (10 - 32 Phillips) that attach the gear motor to
the bracket.
10. Remove the gear motor from the bracket. Refer to Figure 11-32.
Figure 11-32.
Replacing the gear motor/pump head
coupler on the motor drive shaft
11. Measure the position of the gear motor pump coupler on the motor
drive shaft. Remove the coupling from the shaft by loosening the hex
drive set screw.
12. Put the coupling on the new gear motor drive shaft, making sure that
the coupling is in the same position on the new drive shaft as it was on
the old drive shaft.
11-44
CUSA
EXcel-8
System
Service
Manual