Installation - Graco Low-Pressure Tank A Series Instructions-Parts List Manual

WARNING
FIRE AND EXPLOSION HAZARD
Always maintain a minimum of 1 in.
clearance between rotating agitator parts
and container to prevent sparks from
contact.
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The pressure tanks remain pressurized until pres-
sure is manually relieved. To reduce the risk of
serious injury from pressurized fluid or accidental
spray from the gun, always follow this procedure to
relieve pressure in the tank at the following times:
D Before you check or service any part of the
spray system
D Before you loosen or remove the pressure tank
cover or fill port
D Whenever you stop spraying
1. Shut off the air supply to the tank by closing the air
inlet valve (17). Refer to Fig. 2.
2. Open the drain cock fitting (7) by turning it
counterclockwise.
3. Wait until there is no air escaping through the drain
cock fitting before removing the cover or opening
the fill port.
4. Leave the drain cock fitting (7) open until you have
reinstalled the cover or fill port.
7
Fig. 2

Installation

17
03187B
Grounding
Check your local code for detailed grounding
instructions for your area and type of equipment. Be
sure to ground the pressure tank by connecting one
end of a 12 awg (1.5 mm@) minimum ground wire to
the pressure tank and the other end of the wire to a
true earth ground.
Recommended Hose Sizes
Fluid
For runs of: Use:
0 to 35 ft (0 to 11 m) 3/8" ID
35 to 100 ft (11 to 30 m) 1/2" ID
100 to 200 ft
(30 to 61 m) 3/4" ID
Installing a Heavy Duty Agitator
To install a heavy duty air operated agitator, see
manual 308371. This agitator is recommended for fluid
viscosities over 800 centipoise (cp).
Connecting Hoses
Refer to Fig. 1, page 4. Install an air regulator and
filter (G) upstream from the air inlet ball valve (17) to
remove dirt and moisture from the compressed air
supply (B). See Accessories on page 16. Connect an
air supply hose (A) between the air inlet ball valve (17)
and an air outlet of the air regulator and filter (G).
Connect the atomizing air hose (D) to the air spray gun
(F) from an air outlet of air regulator and filter (G) or
from the gun air regulator kit (see Accessories on
page 16).
Connect a fluid hose (E) between the 3/8 npt(m)
fluid outlet ball valve (18) and the fluid inlet of air spray
gun (F).
(general purpose)
Air
For runs of: Use:
0 to 50 ft (0 to 15 m) 5/16" ID
50 to 100 ft (15 to 30 m) 3/8" ID
100 ft+ (30 m+) 1/2" ID
308369 5