ASM Zip-Spray ESP - Pump Check Valves

Priming
311139B 11
11. Submerge suction tube
in paint.
12. Turn power switch ON.
13. When paint starts to come
out of prime tube, aim gun
toward waste pail, pull and
hold gun trigger and turn
Spray-Prime/Drain valve to
SPRAY.
14. When paint comes out
of gun, release trigger.
15. Clip drain tube to suc-
tion tube.
Pump Check Valves
Storing pump in water, adequate flushing, or ingested
debris can cause either of the pump’s two check valves
to malfunction. Try to loosen the check balls loose by
tapping the inlet valve with a small wrench. The sprayer
should be on and running.
Motor stopping indicates pump and hose are
primed with paint.
If the pump does not prime after 30 seconds, Read
the following section, Pump Check Valves.
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CAUTION
Excessive shock will fracture or cause other damage
to the pump.
To determine if the inlet valve ball is sticking,
unscrew inlet valve from pump and check it. ASM
1500, 1700 and 1900 sprayers allow for inlet valve
removal without removing suction tube.
If sprayer continues to cycle (motor and pump run)
after you release gun trigger, the pump valves may
be obstructed or worn. If they are worn, valve repair
kits are available. Consult an ASM authorized ser-
vice center.
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