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10 309067
Motor Brushes
NOTE: Replace brushes worn to less than13 mm
(0.5 in.). Check both brushes. Use Brush Repair Kit
236967 (243268 for sprayers 232914 and 232915) for
motor brush repair.
Relieve pressure; page 3.
1. Unplug sprayer.
2. Remove both inspection covers (A) and their
gaskets. See Fig.5.
Fig. 5
A
9662A
3. Push in spring clip (F) and release hooks (G) from
brush holder (B). Pull out spring clip. See Fig. 6.
4. Inspect commutator for excessive pitting, burning or
gouging. A black color on commutator is normal.
Have commutator resurfaced by a qualified motor
repair shop if brushes seem to wear too fast or arc
excessively. See Step 9.d., also.
5. Repeat for other side.
6. Place a new brush (C) in holder (B) so ramp (H)
faces spring. See Fig. 6.
7. Holding spring clip (F) at a slight angle, slide spring
clip into brush holder and hook it over end of
holder. See Fig. 7. Pull on spring clip to be sure it
stays in place. Connect brush lead to blade con-
nector (E).
8. Repeat for other side.
9. Test brushes.
a. Remove pump connecting rod pin (14).
WARNING
ELECTRIC SHOCK HAZARD
Do not touch the brushes, leads, springs
or brush holders while the sprayer is
plugged in to reduce the risk of electric
shock and serious bodily injury.
b. With sprayer OFF, turn pressure control knob
fully counterclockwise to minimum pressure.
Plug in sprayer.
c. Turn sprayer ON. Slowly increase pressure
until motor is at full speed.
d. Inspect brush and commutator contact area for
excessive arcing. Arcs must not trail or circle
around commutator surface.
10. Install brush inspection covers and gaskets.
11. Install pump connecting rod pin (14).
Fig. 6
F
G
E
D
C
B
H
1
1
Motor lead; do not disconnect
2 Minimum 13 mm (.5 in.)
2
03881
03881
Fig. 7
1
G
C
E
F