Component Description; Prime Valve - Graco TexSpray 1030 FC Repair Manual

Flow and Air Control
Fig. 1. The flow control (A) has a shut off and pressure
relief feature to soft start each time the gun is trig-
gered, instead of a blast of unatomized material. The
flow control has three modes:
D LOW/MED/HIGH: Triggering the gun sends an air
signal to the flow control that closes the prime valve
and starts the pump which fills the material hose.
When the gun trigger is released, the prime valve
opens and relieves the system pressure into the
supply container. When the gun is triggered the
automatic pressure relief, special TexSpray hoses
and pump design eliminate blasts of material and
spray pulsing to ensure consistent atomization.
D OFF: Puts the sprayer in neutral/relieve pressure --
neither the pump nor the gun will operate and there
is no material pressure in the pump, hose or gun.
D PRIME: The prime valve remains open so material
circulates through the pump and back to the supply
container through the drain hose.
The air control (B) increases or decreases the air
pressure to the sprayer from the air supply.
OFF
PRIME
LOW/MED/HIGH
B A C
Fig. 1

Component Description

TI3010A
159
Black
158
Blue
TI3101A

Prime Valve

Fig. 1. The prime valve (C) relieves system pressure
and stops the pump when the gun trigger is released.
TexSpray Gun, 235490
WARNING
EQUIPMENT MISUSE HAZARD
The TexSpray Gun 235490 is for use
only with the GM 1030 TexSpray 234113
INSTRUCTIONS
which is designed so the fluid pressure
of the gun will not exceed the working pressure
rating of the components. The maximum fluid work-
ing pressure of the GM 1030 TexSpray is 750 psi
(5.1 MPa, 51 bar), but the recommended maximum
is 500 psi (3.4 MPa, 34 bar).
Fig. 2. Air flow is controlled at the gun. During priming,
turn the gun air control valve (D) in fully to prevent air
from mixing with the fluid, which allows you to check
and adjust the fluid flow accurately. (When this valve is
closed the air exits the rear of the gun.) During opera-
tion, open the air control valve to introduce air at the
correct volume for the desired spray pattern. The gun
also has a trigger bail (E) to reduce operator fatigue
when spraying large surfaces.
E
Fig. 2
TexSpray Hoses
CAUTION
Use Graco hoses designed for this sprayer. Using
other hoses will damage the flow control.
D
01808
309662 5