19
20. If flushing was with water, flush again
with mineral spirits to prevent corrosion
inside the pump.
CAUTION: Never leave water in the pump for
any length of time. Water will corrode the
pump.
LONG TERM STORAGE
For long- term storage, fill the pump with
a storage solution made of a 50/50 mix of
motor oil and mineral spirits.
To ll the pump:
1. Place the both the suction tube and
drain tube in a small quantity of storage
solution.
(For hopper equipped models
pour a small quantity of storage solution
into the hopper.)
2. With the priming valve in the open
position, turn the machine on and turn
the pressure control knob just enough
for the pump to run.
3. Watch the drain tube and as soon as
the storage solution appears in the
tube, shut the machine off and close
the priming valve. This will trap the
storage solution inside the pump to
protect it.
MAINTENANCE
HOURLY MAINTENANCE
We recommend after every hour of spraying,
stop, follow the Pressure Relief Procedure
and perform the following:
• Add about 2 drops of throat Seal Oil to
lubricate the packings.
• Clean the pump lter.
• Clean the gun lter.
• Clean the tip.
• Clean the inlet strainer or hopper
strainer. As needed.
CAUTION: Never lay the pump on its back.
Material could ow backward and damage
the electronics or motor.
DAILY MAINTENANCE
1. Keep the displacement pump packing
nut lubricated with throat seal oil at all
times. Add about five drops of oil to
the top of the pump at the beginning
of each day. Then two drops for every
hour of spraying. The throat seal oil helps
protect the piston, rod and packings.
2. Inspect the packing nut daily. If either
of the following conditions exists the
packing nut should be tightened:
a. Seepage of material past the
packing is found.
b. While the system is pressurized
during the intervals when the
motor is not running, the piston
doesn’t hold its position. Rather,
it tends to slip upward.
To tighten the packing nut: First loosen
the hand knob 90 to lower the fence 99.
(For brushless models loosen the butterfly
bolt 35 and to raise the fence 33 ).
Now
reach the pin wrench end of the dual
purpose wrench through the opening
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