Graco Inc 308-507 Installation, Air Air Inletmotor Connection Air Pressure Regulator Chemical

INSTALLATION

AIR

AIR INLETMOTOR CONNECTION

AIR

PRESSURE

REGULATOR

CHEMICAL

INJECTOR

QUICK

COUPLER

AIR	CHEMICAL
MOTOR	INJECTOR
Figure 1

QUICK COUPLER

(800–295 ONLY)

ADJUST-

ABLE

NOZZLE

(800–412 &

800–413)

AIR

PRESSURE REGULATOR

SPRAY

GUN

QUICK

COUPLERS

SPRAY

HOSE

Check for Shipping Damage

The unit should be checked for any damage that may have occurred in shipping. Any damage should be noted and the carrier notified immediately.

Set Up

Connect the high pressure hose between the pump outlet and the gun inlet. Both of these connections are made with quick couplers.

CAUTION

If inlet water pressure is over 60 psi (4.1 bar) a regulating water valve P/N 800–258 must be installed at the garden hose connection (800–412 & 800–413 only).

Do not exceed 20 0_F (93 _C) inlet water temperature.

CAUTION

Up to 100 ft (30 m) of high pressure hose may be used. Longer hoses may af fect sprayer performance, and chemical injector performance.

Install the appropriate spray tip on the wand (800–295 only). See Installing and Changing Spray Tips.

Connect to Water Supply

CAUTION

Before attaching to the water supply, check your local plumbing code regarding cross–connection to the water supply . A backflow preventer P/N 801–133 is available to prevent backflow of contaminated water into the fresh water supply . Install it upstream from the pump (800–412 & 800–413 only).

308–507 4

Connect a hose with at least a 3/4 inch (19 mm) ID from the water supply to the unit’s 3/4 inch garden hose inlet. The supply hose should not be more than 50 ft (15 m) long.

NOTE: The water source at the unit must have a

minimum flow rate equal to that of the unit (see Technical Data, inside back cover).

Connect to Air Supply

Be sure that the air supply has a minimum flow rate equal to the air consumption of the motor and that the pressure is less than the maximum allowed (see Technical Data, inside back cover).