Suction Tube Storage - Graco GM3500 Instructions-Parts List Manual

CAUTION
NEVER allow water to freeze in the pressure control.
Doing so prevents the sprayer from being started and
causes serious damage to the pressure control. Pump
the water out with mineral spirits.
WARNING
FIRE AND EXPLOSION HAZARD
To reduce the risk of static sparking and
splashing when flushing, always remove
the spray tip from the gun and hold a
metal part of the gun firmly to the side of a
grounded metal pail.
1. Follow the Pressure Relief Procedure on page
12. Engage the gun safety latch.
2. Turn the pressure adjusting knob fully counter-
clockwise to the minimum pressure.
3. Remove the spray tip from the gun. Remove the
filter bowl (A) and screen (B); see manual
307–273. Clean the screen separately and install
the bowl without the screen to flush it. See Fig. 5.
4. Put the suction tube into a grounded metal pail
with 1/2 gallon of compatible solvent.
Place the suction tube in the receptacle on the cart
frame as shown in Fig. 6.
Flushing

Suction Tube Storage

5. Start the sprayer. See page 10. To save the fluid in
the sprayer, trigger the gun into another container
until the next fluid appears, then trigger the gun
back into the fluid you are pumping. Circulate the
flushing fluid to thoroughly clean the system.
6. Remove the strainer (and suction tube, if used) and
clean separately to remove all paint sediment.
7. Do not run the pump dry for more than 30 seconds
to avoid damaging the pump packings!
8. Follow the Pressure Relief Procedure on page
12. Engage the gun safety latch.
9. Unscrew the filter bowl and reinstall the clean
screen. Install the bowl and hand tighten. Install
the suction tube assembly.
B
C
Fig. 5
Fig. 6
A
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