Graco 289604, 288513 Pressure Relief Procedure, Gun Trigger Lock, Setup, Operation

Warnings

Pressure Relief Procedure

Follow this Pressure Relief Procedure whenever instructed to relieve pressure, stop spraying, check or service equipment, or install or clean spray tip.

1.Lock trigger. Turn OFF power and turn pressure control to lowest pressure setting.

2.Unlock trigger. Hold gun against side of flushing pail. Trigger gun into pail to relieve pressure.

If you suspect spray tip or hose is clogged or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Clear hose or tip obstruction.

Gun Trigger Lock

To prevent injury when the gun is not in use, always lock the trigger if unit is being shut down or left unattended.

Trigger Locked	Trigger Unlocked
(no spray)	(spray)

ti6581a ti6582a

Setup

Make sure sprayer is turned off and unplugged from power source and trigger lock is locked. Refer to your sprayer instruction manual for priming and spray instructions.

Connect Gun to Sprayer

1.Attach air inlet fitting (17) and fluid inlet fitting (25) to gun.

17

25

ti9444a

2. For Air-Assisted spraying, first attach	17
black, coiled, air supply hose (a) to gun
air inlet fitting (17).
NOTE: The first time you set up the gun
for spraying you will have to cut the	a
black air hose to length desired.
	ti9022a

3.Attach blue fluid supply hose (b) to gun

fluid inlet fitting(25).	25
4. Attach other end of air and fluid supply
hoses to sprayer. Use two wrenches to	b
tighten all connections securely (see
sprayer setup instructions in sprayer
operation manual 311905.)

Installing Tip (33) and Guard (6) on Gun

1.If equipment has recently been operated, relieve pres-

	sure.
2.	Insert seat housing (35)	6	35
	into guard (6).
3.	Insert SwitchTip (33).		33a 33b
4.	Insert seal (33b) over seat
	(35a) and insert in seat
	housing (25). Use black	ti8249a	33

seal for water-based materials and orange for solvent and oil-based materials.

5.Install guard (6) over end of gun. Hand tighten.

If you notice fluid leaking from front of gun, replace the seat (33a) and/or retighten the guard nut.

Operation

Note: The following instructions are for guns used with Graco’s FinishPro Sprayers. See the sprayer instruction manual 311905. If you are using a different sprayer, see your equipment instruction manual.

If you are using a FinishPro™ 390 Model Sprayer, air

regulation is only provided at the gun. The FinishPro™ 395 Model Sprayers provide additional air regulation at the

sprayer.

1.Unlock trigger (1a).

2.Be sure the arrow shaped tip (33) faces forward (spray).

3.Hold gun perpendicular and approximately 12-inches (304 mm) from surface. Move gun first, then pull gun trigger (3) to spray a test pattern.

4.Always hold gun at a right angle from the surface. Do not make an arc with the gun. This causes an uneven coat of fluid. To obtain an even finish, use smooth, even strokes across the object being sprayed with a 50% overlap.

4 311937G