Operation
Use the following procedures to operate the spray system.
Priming the Pump
Preparing to Prime
1. Fill the inlet valve with water or with a
light household oil.
2. Make sure that the PRIME/SPRAY
valve is set to PRIME and that the
pressure control knob is turned
counterclockwise to its lowest pressure
setting.
3. Turn on the pump by moving the pump
ON/OFF switch to the ON position.
4. Increase the pressure by turning the pressure control knob
clockwise 1/2 turn.
5. Force the inlet valve to open and close
by pushing on it with a screwdriver or
the eraser end of a pencil. It should
move up and down about 1/16 of an
inch. Continue until water or oil is
sucked into the pump. This will wet the
moving parts and break loose any old
paint residue.
6. Put the palm of your hand over the
inlet. Turn the pressure control knob
clockwise to its maximum setting.
You should feel suction coming from
the inlet valve. If you do not, refer to the "Removing and
Cleaning the Outlet Valve" procedure in the Maintenance
section.
7. Turn the pressure control knob counterclockwise to the
minimum pressure setting.
8. Turn the pump ON/OFF switch to OFF.
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Mounting the hopper assembly
Use the following procedure to mount the paint hopper and
attach the return tube on a hopper unit.
1. Screw the return tube fitting into
the return tube port on the side of
the pump.
NOTE: Do not over-tighten.
hand-tighten only. Some
threads will be visible
even when fully tightened.
2. Align the bottom of the paint
PRIME/SPRAY
hopper with the threaded inlet
Valve
valve on the paint pump block.
3. Turn the paint hopper clockwise to thread it onto the inlet
valve. Continue to turn the paint hopper until it is secure
on the inlet valve.
NOTE: Make sure the threads are straight and the
hopper turns freely on the inlet valve. Do not
cross-thread.
4. Place the filter screen into the bottom of the paint hopper
and snap it in position.
5. Make sure that the motor ON/OFF switch is turned to
OFF.
6. Place the straight end of the
return tube into the return tube
fitting.
7. Thread the nut on the return tube
onto the return tube fitting and
tighten until the return tube is
secure.
8. Place the hook end of the return
tube into the hole in the paint
hopper cover.
attaching the Optional Suction Set
Use the following procedure to attach the suction set to a suction
set unit.
1. Remove the hopper return tube
fitting. Screw the return tube
fitting into the return tube port on
the side of the pump.
NOTE: Do not over-tighten.
hand-tighten only. Some
threads will be visible
even when fully tightened.
2. Align the nut on the suction set
with the threaded inlet valve on
the pump block.
3. Thread the suction hose nut onto the inlet valve on the
pump.
NOTE: Make sure the threads are straight and the nut
turns freely on the inlet valve. Do not cross-thread.
4. Thread the return tube onto the return tube fitting on the
pump.
5
Inlet
Valve
Return Tube Fitting
Nut
Return
Tube
Inlet
Valve
Return Tube Fitting
English