Ultra
®
Max II
ProContractor
Mark Max
ProContractor
www.graco.com
OPTIONS
Quick Operator’s Guide
SETUP
This procedure is for water-base paints and flushing fluids. For solvent-base paints and flushing
fluids (i.e. mineral spirits), you must read Fire and Explosion Hazard in the Operating Instructions.
* check the Graco operations manual delivered with the unit for more details.
WARNING
Place siphon tube in pail
partially filled with water.
Aim gun at inside
wall of water pail
and squeeze
trigger.
Keeping gun triggered
into water pail, turn prime
valve to Spray position
(horizontal).
Fill throat packing nut with TSL™
to prevent premature packing wear.
Remove guard and SwitchTip
Turn pressure control knob
to lowest pressure, and set
power switch to ON.
Increase pressure until
sprayer starts. Keep
gun triggered into
water pail.
Turn prime valve
to Prime position
(down).
Make sure power
switch is set to OFF.
Increase pressure until
sprayer starts and water
runs out of prime tube.
Let water run out of prime
tube for 15 seconds.
When water comes out of gun,
turn pressure to lowest setting.
Trigger gun to relieve pressure.
When paint comes out of
gun,release trigger and turn
safety lever of gun to ON.
Empty displays/flashes and pump stops when WatchDog
protection system detects an empty material pail.
Decrease pressure
until sprayer stops.
Place siphon tube in
paint pail, but leave
drain tube in water pail.
Transfer drain
tube to paint pail.
Turn prime valve
to Prime position (down).
Make sure safety
lever of gun is OFF.
Increase pressure until
sprayer starts and paint
comes out of drain tube.
Turn WatchDog switch ON
and WatchDog ON displays.
Plug electrical cord
into grounded outlet.
Turn prime valve
to Spray position
(horizontal).
Screw tip & guard onto gun, making sure arrow-shaped
handle of tip is pointing forward. You can reverse this tip to
quickly clear clogs without taking it apart.
Turn WatchDog switch OFF.
Add material or reprime sprayer.
Turn pump switch OFF and ON
to reset WatchDog protection system.
