Graco B Series Instructions-Parts List Manual page 31

Motor
13. Use a plastic mallet to gently tap the displace-
ment pump (19) from the rear to loosen the drive
housing from the front of the motor. Then pull
the
drive housing away from the of the motor.
CAUTION
DO
NOT allow the gear cluster (26) to fall when
removing the drive housing (6).
It
is easily dam-
aged if dropped. The cluster may stay engaged in
either the front end bell or the drive housing.
DO NOT lose the thrust balls (24) located at each
end of the gear cluster (26) or allow them to fall
ered with grease, usually stay in the gear re-
between gears. The balls, which are heavily cov-
cesses, but could be dislodg.ed. If caught between
gears and not removed;the balls will seriously
damage the drive housing. If the balls are not in
place, the bearings will wear prematurely.
14. Remove the four screws (4) from the motor
bracket (A). Be sure to support the motor to keep
the sprayer from tipping.
15. Lift the motor assembly off the frame.
DETAIL
16. Align the new motor assembly with the frame
mounting holes. Install the screws (4)and related
hardware.
17. Liberally grease the gear cluster (26) and pinion
end bell. Check to be sure the thrust balls (24)
gear (B) and pack all bearings in the motor front
are In place.
18. Place the bronze-colored washer (57a) and
THEN the silver-colored washer (57b) on the
crankshaft
(57).
19. Align the gears and push the drive housing
(6)
straight onto the front of the motor and the locat-
ing pins.
20. Starting at Step 13 and working backwards, con-
tinue to reassemble the sprayer.
when feeding wires through it. Be sure to install the
NOTE: Use a turning motion on the conduit
(41)
conduit seal (31) around the wires the conduit con-
nector (345) to prevent motor contamination $om en-
tering the pressure control. See the DETAIL below.
21.. Reinstall the motor cover and pressure control
cover.
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