Pressure Control - Graco 231–201 Instructions-Parts List Manual

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. 29 for this procedure.
NOTE: The pressure control (64) cannot be repaired
or adjusted. If it has malfunctioned, replace it.
1. Remove the front cover (13). Remove the screws
(56). Lower the junction box (59).
2. Disconnect the harness connector (A) from the
motor start board (47).
3. Remove the screws (63). Pull forward on the pres-
sure adjusting knob and tip the pressure control
(64) forward and up to detach it from the drive
housing (11).
4. Guide the harness (A) through the motor and drive
housing and remove the pressure control.
5. Guide the harness of the new pressure control
through the drive housing and motor passages.
6. Install the new pressure control. Tip the pressure
control down and back into the drive housing (11).
Do not pinch or damage the harness (A).

Pressure Control

7. Loosely install the screws (63) and then torque
8. Install the front cover (13). Connect the harness
9. Install the junction box. Be sure no leads are
Fig. 29
them to 21 in–lb (2.4 N.m).
(A) to the motor start board (47).
pinched against the motor or by the motor start
board.
64
A
59
56
1
63
11
13
Torque to
1
21 in–lb (2.4 N.m)
02816A
29
308–180