11.
Test the brushes.
a. Remove the pump connecting rod pin.
b. With the sprayer OFF, turn the pressure con-
trol knob fully counterclockwise to minimum
pressure. Plug in the sprayer.
c. Turn the sprayer ON. Slowly increase the
pressure until the motor
is
at
full
speed.
d. lnsped the brush and commutator contact
area for excessive arcing. Arcs should not
"trail" or circle around the commutator
sur-
face.
ELECTRIC SHOCK
HAZARD
springs or brush holders while the
Do not touch the brushes, leads,
shock and serious bodily injury.
sprayer
is
plugged in
to
reduce the risk
I
A
CAUTION
1
onds while checking the brushes to avoid damag-
Do not run the sprayer dry for more than
30
sec-
ing the displacement pump packings.
12.
Install the brush inspecfion covers and gaskets.
13.
Break
in
the brushes. Operate the sprayer
for
at
least one hour with no load. Install the connecting
rod pin.
Power Supply Cord Replacement
(Fig.
15)
INJECTION
HAZARD
To reduce the risk of serious injury,
follow the illustrated
Pressure
Relief
Procedure warning on page
12
when-
NOTE Read the GENERAL REPAIR INFORMATION
""*@
4.
Relieve pressure.
2.
Remove the pressure control boardhover
(301).
3.
Disconnect the power supply cord
(314),
on page
18
before doing this procedure.
both leads from the ON/OFF switch
(307),
and
the green wire to the grounding screw
(317).
4.
Loosen the strain relief bushing
(315)
and remove
the power supply cord
(31
4).
5.
Install the new power supply cord in the reverse
order.
6.
Install the proper plug on the other end of the
power supply cord. Follow all local codes to se-
lect the proper plug.
Fig:
15
04781
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