Motor, Warning – Graco Inc. 231-353 User Manual

Page 26

26 308-548

Motor

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the

Pressure Relief

Procedure on page 9.

NOTE: See Fig. 26 except where noted.

1. Relieve pressure.

2. Try to stop the pump with the piston rod (107) in its

lowest position. To lower the piston rod manually,

rotate the motor fan blades. Use a screwdriver to

push the retaining spring (18) up and push out the

pin (17). See Fig. 24.

3. Remove the screws (56) and lower the junction

box (59). Disconnect the motor wires and the pres-

sure control wire (A) from the motor start board.

Refer to Fig. 27 on page 27.

4. Remove the front cover (13).

5. Turn the displacement pump rod (107) so the pin

hole aligns with the bottom drive housing screw

(19). See Fig. 25. Remove the three drive housing

screws and lockwashers (19,6). Also see Fig. 26.

6. Remove the two motor screws (19) and and re-

move the sprayer handle (24).

7. Tap the lower rear of the drive housing (11) with a

plastic mallet to loosen the motor. Pull the drive

housing straight off the motor while guiding the

harness (A) from the motor. Do not allow the gear

(16) to fall. Read the CAUTION on page 28.

8. Remove the two screws (46) and lift the motor off

the base (66).

9. Align the new motor with the base and reinstall the

screws (46).

10. Assemble the drive housing to the motor. Follow

steps 8 to 11 on page 28.

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;

see page 22,

Installing the Pump, Step 2 and the

WARNING following it.

Fig. 24

01068

107

19,6

Fig. 25

01074

Fig. 26

Torque to 80 in–lb (9 N.m)

Quantity of three

Quantity of one

04656