Graco EM 380 Instructions-Parts List Manual page 8

REMOVING and REPLACING PRESSURE.CONTROL
r
WARNING
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,,:
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(J).
Changing the setting may cause unsafe high
Do
not
alter the factory adjusted pressure switch
pressure or poor performance.
*-?A . '
Shut-off end unplug sprayer, trigger spray gun and
open filter drain valve to release pressure (provide a
container.to catch drainage) and engage trigger safety.
Disconnect swivel union
( 8 4 )
from nipple (28) and
unscrew nipple
1 2 8 )
from pressure control. See Fig 9.
Disconnect tube (52) from elbow (15). See Fig 10.
Unscrew elbow (15) from fitting in pressure control
(50).
pressure control
(50)
and filter 147) from frame.
Remove screw 15) and lockwasher (4) and remove
. I
Remove screws
(25)
and cover (41) from pressure con-
trol (50). See Fig 11.
board (86). Disconnect green and yellow wire from
Disconnect red, pink and brown wires from circuit
grounding screw
(FI,
and black wire from top of
.
pressure control
(GI.
See Fig 11.
'
NOTE
Circuit board (86) is not included with pressure
control
( 5 0 )
replacement. Order separately
if
new circuit board
is
needed.
Unscrew nut
on
end of conduit (11 from connectar (13).
while carefully guiding wires through connector (131.
See Fig 11. Pull pressure control (50) awayfrom conduit
Loosen knurled part of power cord strain relief
(HI,
and
on power cord to provide clearance, and unscrew con-
unscrew
it
from pressure control. Slide strain relief up
duit connector (13). See
Fig
11.
-u
Fig 9
52
Replace in reverse of order of removal.
Fig
10
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307-371