Graco Ultra Max II 495 Classic 사용자 설명서

Follow the Pressure Relief Procedure whenever 
you see this symbol.

1. Engage trigger lock.

2. Turn ON/OFF switch to OFF. 

3. Unplug power cord.

4. Disengage trigger lock. Hold metal part of gun 

against grounded metal pail and trigger gun into pail 
to relieve pressure. 

5. Engage the trigger lock.

6. Open all fluid drain valves in the system, having a 

waste container ready to catch drainage. Leave drain 
valve(s) open until you are ready to spray again.

7. If you suspect the spray tip or hose is clogged or 

that pressure has not been fully relieved after follow-
ing 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.

1. Follow Pressure Relief Procedure.

2. Remove pressure control cover.

3. Remove PC board. Refer to sprayer manual.

4. If using Kits: 287909, 287910

If installing PC board in 490 model sprayer, clip and

remove resistor B.

If installing PC board in 495 model sprayer, clip and

remove resistor A.

If installing PC board in 595 model sprayer (and/or

FT600), do not clip resistors.

5. Install PC board. Refer to sprayer manual.

6. Install cover.

This equipment stays pressurized until pressure is 
manually relieved. To help prevent serious injury from 
pressurized fluid, such as skin injection, splashing 
fluid and moving parts, follow the Pressure Relief 
Procedure when you stop spraying and before 
cleaning, checking, or servicing the equipment.

Electrostatic discharges can damage components on 
PC board. Use a ground strap when handling or install-
ing PC board. 
Use configurations other than those specified below in 
poor sprayer performance.