How To Flush - Allpro 400E Operations Manual & Parts List

HOW TO FLUSH

FIGURE 1
Prime/Pressure Relief Valve (Prime/PR Valve)
Used to relieve pressure from gun, hose & tip and to
prime the unit when in OPEN position.
(It is in open position
when there is a wider gap
between valve handle and
cam body)
When in CLOSED position,
there is only a very slight gap
between handle & body.
When closed the system is
pressurized.
Handle as a loaded firearm!
1. Be sure the gun safety latch is engaged and there
is no spray tip in the gun. Refer to separate gun
instruction manual on how to lock the safety latch
and the guns safety features. Refer to Fig. 4.
FIGURE 4
REMOVE SPRAY TIP.
ENGAGE GUN SAFETY
LATCH.
2. Pour enough clean, compatible solvent into a large,
empty metal pail to fill the pump and hoses.
3. Place the suction tube into the pail.
4. Turn the Prime/Pressure Relief (PR) Valve to the
"OPEN" , priming position. Refer to Fig. 1.
5. Point the gun into the metal pail and hold a metal
part of the gun firmly against the pail. Refer to Fig.
5.
WARNING -
To reduce the risk of static
sparking which can cause fire or explosion,
always hold a metal part of the gun firmly
against the metal pail when flushing. This
also reduces splashing. Refer to Fig. 5.
FIGURE 5
MAINTAIN FIRM
METAL TO METAL
CONTACT BETWEEN
GUN AND CONTAINER
2
FIGURE 2
PRESSURE CONTROL KNOB. (FIG. 2)
is used to adjust pressure. Turn clockwise (CW) to
increase pressure and counterclockwise (CCW) to
decrease pressure.
FIGURE 3
ON
TOGGLE
SWITCH
6. Disengage the gun safety latch and squeeze the
gun trigger. Turn the ON-OFF Toggle Switch
to the "ON" position (Fig. 3) and turn Pressure
Control Knob (Fig. 2) clockwise to increase pres-
sure just enough to start the pump.
7. Turn the Prime/PR Valve to the PRESSURE -
"CLOSED" position. This will allow solvent to be
flushed through the pump, hoses and gun. Allow the
unit to operate until clean solvent comes from the
gun.
8. Release the trigger and engage the gun safety
latch.
9. If you are going to start spraying, place the suction
tube into the supply container. Release the gun
safety latch and trigger the gun into another empty,
metal container, holding a metal part of the gun
firmly against the metal pail and force the solvent
from the pump and hose. Engage the gun safety
latch until you are ready to spray.
10. If you are going to store the sprayer, remove the
suction tube from the solvent pail, holding a metal
part of the gun firmly against the metal pail and
force the solvent from the pump and hose. Engage
the gun safety latch. Refer to "Storage" Procedure
on Page 1.
11. Whenever you shut off the sprayer, follow the
"PRESSURE RELIEF PROCEDURE" on Page 6.
OFF