Graco Ratio Monark Hydra-Spray Series, Instructions-Parts List Manual

Page: 6 / 24

6 307929
Installation
0972A
KEY
A Air Line Filter
B Main Air Line
C Air Line Lubricator
D Fluid Hose
E Spray Gun
F Gun Air Supply Hose
G Bleed-Type Master Air Valve
(for accessories)
Y Ground Wire (required)
5 Pump
22 Suction Hose
23 Suction Tube
25 Fluid Filter
31 Air Regulators
52 Air Relief Valve
62 Bleed-Type Master Air Valve
(for pump)
65 Fluid Drain Valve
A
B
C
D
E
F
G
Y
22
25
31
31
52
62
65
5
23
Fig. 2
WARNING
Three required components are supplied 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 area adjusting or repairing the pump.
The bleed-type master air valve (62) relieves air
tapped between this valve and the pump. Trapped
air can cause the pump to cycle unexpectedly. To
bleed air from the pump, the pump air regulator
must be open when you close this valve.
The air relief valve (52) opens automatically to
relieve air pressure to the pump if the the pressure
exceeds a preset level. This vale prevents over-
pressurization of the spray gun.
The fluid drain valve (65) assists in relieving fluid
pressure in the displacement pump, hose, and gun;
triggering the gun to relieve pressure may not be
sufficient.
Hose and Gun Connections
Refer to the Typical Installation drawing (Fig. 2). Con-
nect one end of the fluid hose (D) to the filter (25)
outlet and the other to the fluid inlet of the gun (E).
Do
not install the spray tip in the gun yet. To use a second
gun with the sprayer, refer to pages 11–13.
Close the bleed-type master air valve (62) and both
the air regulators (31). Connect the main air line (B) to
the bleed valve. Connect an air supply hose (F) to the
outlet nipple of the gun (left) air regulator. Connect the
other end of the hose to the gun’s air inlet.