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Graco PRO 301ST Owner's Manual page 26

Electric 120vac

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9.
Align the new motor with the base and reinstall
10.
Assemble the drive housing to the motor. Follow
the screws (46).
steps 8 to
11
on page 28.
1.
2.
3.
4.
5.
6,
7.
6.
NOTE See Fig. 26 except where noted,
,
Relieve
oressure.
~
~
T I ) ' to stop the pump with the piston rod (107) in
its
lowest position. To lower the piston rod manu-
ally, rotate the motor fan blades. Use a screw-
driver to push the retaining spring
(1 8)
up and
push out the pin (17).
See
Fig. 24.
Remove the screws (56) and lower the junction
pressure control wire (A) from the motor start
box (59). Disconnect the motor wires and the
board. Refer to Fig. 27 on page 27.
Remove the drive housing cover (13).
Turn the displacement pump rod (107)
so
the pin
hole aligns with the bottom drive housing screw
screws and lockwashers (19,6). Also see Fig. 26.
(19). See
Fig. 25. Remove the three drive housing
Remove the two motor screws and lockwashers
(56).
Tap the lower rear of the drive housing
(1 1)
with a
housing straight off the motor while guiding the
plastic mallet
to loosen the
motor. Pull the drive
harness (A) from the motor. Do not allow the gear
(16) to
fall. Read the CAUTION on page 26.
11.
Connect the wires in the junction box. Refer to
Fig. 27 on page 27. Install the junction box.
12. Connect the piston rod (107) to the drive housing;
the WARNING following it.
see page 22, Installing
the
Pump, Step
2 and
17
15
.~
18
Fig.
24
1
107
19,6
Fig. 25
01074
h
Fig.
26
U
02814A
26
308-216

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