110 Vac U.k. Motor Control Board - Graco 311365G Repair Manual

Removal
Relieve pressure; page 9.
Relieve pressure; page 9. Wait 5 minutes
before servicing.
1. Remove four screws (38) and cover (96).
2. Disconnect display connector (A) from
motor control board.
3. Remove bottom two screws (39) and allow
control panel (68) to hang down freely.
4. Disconnect control board power lead(s) (D)
from ON/OFF switch (33) and motor control
board (52).
5. Disconnect potentiometer connector (C)
from motor control board.
6. Disconnect WatchDog (49) switch
connector (X) from motor control board.
7. Disconnect 15/20A switch (178) (1595
model only).
8. Disconnect transducer connector (E) from
motor control board.
9. Disconnect motor connectors (F, G, and H)
from motor control board.
10. Remove motor shroud. Disconnect and
remove wiring from baffle.
11. Remove nut and screw (88) and disconnect
ground wire (87). Disconnect coil connector
(Y). Remove coil (81).
12. Remove top two screws (39) and control
box (61).
13. Remove six screws (27), two screws (102)
and control board.
14. Remove five screws (27), three screws
(102) and motor control board.
24

110 Vac U.K. Motor Control Board

Installation
1. Apply small amount of thermal compound
15U114 or 110009 (5) to shaded
component areas on rear of motor control
board (52).
CAUTION
To reduce risk of motor control board failure, do
not overtighten screws (102) which can damage
the electric components.
2. Install five screws (27), three screws (102)
and motor control board.
3. Install motor control board (52) with five
screws (27). Torque to 9-11 in-lb (1.02 -
1.24 N•m). Install and torque three screws
(102) to values in illustration.
4. Connect motor connectors, (F, G and H) to
motor control board.
5. Reconnect and install wiring in baffle.
Install motor shroud.
6. Install control box (61) with top two screws
(39).
7. Install coil (81) and tighten screw and nut
(88). Tighten ground wire screw (87) and
coil connector (Y).
8. Connect transducer connector (E) to motor
control board.
9. Connect 15/20A switch (178) (1595 model
only).
10. Connect motor control board power lead(s)
(D) to ON/OFF switch (33).
11. Connect WatchDog (49) switch connector
(X) to motor control board.
12. Connect potentiometer connector (C) to
motor control board.
13. Install control panel (68) with two screws
(39).
14. Connect display connector (A) to motor
control board.
15. Install cover (96) with four screws (38).
Pressure Control Board
311365G