Pressure Control Replacement - Graco GM5000 Instructions-Parts List Manual

PRESSURE CONTROL REPLACEMENT
I -
WARNING
76
To reduce the risk of serious bodily injury, including
fluid injection or splashing in the eyes oron the skin,
or injury from moving parts, always follow the Pres-
checking, adjusting, cleaning and shutting down the
sure Relief Procedure Warning on page 17 before
sprayer. Disconnect the spark plug cable.
1. Disconnect both hoses at the pressure control (63),
wrench to prevent turning the elbow. Take note
of the
holding the hex of the nipple (311) firmly with a
semble them correctly at the end of this procedure.
original location of each hose to be sure you reas-
See Fig 19-1.
CAUTION
2.
3,
.'>
:
.
. .
.,
.
4,
5,
6
7.
8.
9.
10
Working under the engine mounting plate of the cart,
disconnect the red, black and white wires. Then re-
move the three nuts (61) and lockwashers
(9)
from
Fig
19-1
the capscrews (62) which hold the pressure control
bracket (67) to the cart. Remove the pressure con-
trol. See Fig 19-2.
Remove the pressure control cover and screws
(76,64). Remove the four screws
(65)
holding the
bracket (67) to the pressure control. See Fig 19-1.
Remove the wire clamp (97) from the pressure con-
trol wires.
Disconnect the wires from the rectifier (307). Re-
move the screw (314), nut (306) and lockwasher
(305). See Fig 20-1.
Unscrew the connector (315) from the box, pulling
the wires out with
it.
with a wrench, remove the elbows (312).
Holding the hex of the adapters (A) at the control box
the ground wire (308).
Remove the screw (31 0) and lockwashers (305) from
Reassemble in the reverse order. Be sure to reinstall
the wire clamp on the new pressure control wires.
Fasten both clamps to the car! with the same screws,
lockwashers and nuts (62,9,61) which hold the
bracket (67) to the cart.
dure on pages 20 and 21 before regular operation of
Perform the Pressure Control Calibration proce-
the sprayer.
B'
(see page
21)
VIEW FROM UNDER ENGINE MOUNTING
Fig
19-2