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NOTES:
The reference numbers and letters in parentheses
in the text refer to the callouts in the drawings.
The accessories mentioned are available from your
Graco distributor.
The following manuals are supplied with your unit:
Manual Component
307–595
10:1 Ratio Monark Pump
308–640
Air–Assisted Airless
Spray Gun
308–167
Air Regulator
307–273
Fluid Filter
307–886
Fluid Regulator (Model 230–978
Sprayer only)
WARNING
For your safety in installing, operating, and servic-
ing this system, thoroughly read and follow all
warnings and instructions given in this manual or in
any other manuals supplied with this system or any
accessories you add to the system. If a manual is
missing or you need additional copies, copies are
available from Graco at no charge.
All Models (See Fig 2)
DO NOT install the spray tip in the gun yet.
Install an air line filter (H) in the main air line, to re-
move harmful dirt and moisture from the compressed
air supply. Install a bleed–type master air valve (J)
close to the pump air inlet, and downstream from the
pump air regulator (K). Install a second bleed valve (L)
upstream from all other accessories, to isolate the
accessories for servicing.Connect an air supply hose
between the main air supply line and the sprayer's air
inlet swivel (1).
Installation
To avoid contaminating the air supply to the gun, do
not use an automatic air line lubricator; lubricate the
motor manually, instead. See OPERATION on page
11.
The bleed-type master air valve (J), air relief valve
(9), and fluid drain valve (E) are required in your
system, to help reduce the risk of serious injury
including fluid injection, splashing in the eyes or on
the skin, overpressurization, or injury from moving
parts if you are adjusting or repairing the pump.
The bleed-type master air valve relieves air trapped
between this valve and the pump. Trapped air can
cause the pump to cycle unexpectedly.
The air relief valve (supplied) opens automatically
to relieve air pressure to the pump if the pressure
exceeds a preset level. This valve prevents over-
pressurization of the spray gun.
The fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose, and gun;
triggering the gun to relieve pressure may not be
sufficient.
CAUTION
WARNING
307–636
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