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ITEM NO PART NO DESCRIPTION QTY
130 765-062 Screw 4
131 765-032 Rear Cover 1
*132 765-025 Coupling Nut 4
133 765-006 Snap Ring 2
134 765-060 Lockwasher 4
135 765-008 Fan 1
136 765-029 Rear Motor Housing 1
137 765-012 Wave Washer 1
138 765-019 Mounting Stud 4
139 765-020 Armature 1
For 100V Units:
139 765-079 Armature 1
142 765-316 Field 1
For 110V C.E. Units
:
139 765-020 Armature 1
142 765-016 Field 1
For 230V C.E. Units
:
139 765-013 Armature 230V 1
142 765-010 Motor Field 1
*Torque Item #132 to 25-30 inch lbs.
Armature Replacement
WARNING:
Before proceeding, follow the Pressure
Relief Procedure outlined on Page 5. Additionally,
follow all other warnings to reduce the risk of an
injection injury, injury from moving parts or electric
shock. Always unplug the sprayer before servicing!
1. Remove Rear Cover (#131) by taking out screws
(#130).
2. Remove Snap Ring (#133).
3. Remove Fan (#135).
4. Remove Snap Ring (#133).
5. Remove Rear Motor Housing (#136) by removing
screws (#132). NOTE: Make sure to remove Wave
Washer (#137) which should be on the End Bearing of
the Armature.
6. Remove Motor Brushes. Follow Brush replacement
procedure, located on page 21.
7. Remove Armature by gently rocking and pulling Fan
from rear of pump.
8. Inspect Armature. If damaged, replace.
9. To replace Armature, reverse steps 1 through 7 here.
Epic 447HPX
18
UNITEC Motor Complete
Figure 4