Repair; Pressure Control - Graco 231-077 Instructions-Parts List Manual

Series a, lo-boy cart, basic/complete, upright cart, basic/complete
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REPAIR
Pressure Control Replacement
WARNING
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. Dlsconnect the spark plug cable.
1. Disconnect both hoses at the pressure control
(63),
Take note of the original location of
each hose to be
holding the elbows firmly. See the
CAUTION below.
sure you reassemble them correctly at the end of this
procedure. See Fig 19-1.
CAUTION
removing or connecting the hoses. Turning the el-
DO
NOTallow the elbow
(314 OR 315)
to turn when
bows can damage the sensitive bourdon tube.
2. Working under the engine mounting
plate of the cart,
disconnect the red, black and white wires. Then re-
the capscrews (62) which hold the pressure control
move the three nuts (61) and lockwashers
(9)
from
trol. See Fig 14-2.
bracket (67) to the cart. Remove the pressure con-
3. Remove the pressure control cover and screws
to
the pressure control. See Fig 19-1.
(76,64)
and the fourscrews (65) holding bracket
(67)
4.
Remove the wire clamp (32) from the pressure con-
trol wires.
VIEW FROM UNDER ENGINE MOUNTING
PLATE ON UPRIGHT CART
n -
/
63
B'
(see
page 21)
MOUNTlNG FOR UPRIGHT CART SHOWN
Fig
19-1
VIEW FROM UNDER ENGINE MOUNTING
PLATE ON LO-EOY CART

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220-040220-028Gm3500231-057

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