AIRLESSCO SP200 - Manual (Page 13)

Basic Troubleshooting
3A0997F 13
Pump does not prime. Prime/Spray Valve is in SPRAY
position. Turn Prime/Spray Valve to PRIME
position (pointing down).
Inlet screen is clogged or suction
tube is not immersed. Clean debris off inlet screen and
make sure suction tube is immersed
in fluid.
Pump was not primed with flushing
fluid. Remove suction tube from paint.
Prime pump with water or sol-
vent-based flushing fluid, see Oper-
ation manual 3A0994.
Inlet valve check ball is stuck. Remove suction tube and place a
pencil into the inlet section to dis-
lodge the ball, allowing pump to
prime properly. Or, Power Flush
sprayer, see Operation manual
3A0994.
AutoPrime may need replacement.
Turn power switch ON and listen for
“tap” in pump. If you do not hear
“tap”, AutoPrime is damaged. Take
sprayer to Graco/Airlessco autho-
rized service center.
Inlet valve check ball or seat is dirty Remove inlet fitting. Clean or
replace ball and seat.
Outlet valve check ball is stuck. SP300, Mustang 3100: Insert
screw driver in slot and remove
Easy-Access door, page 8. Unscrew
outlet valve with a 3/4 in. socket.
Remove and clean assembly.
SP200, Mustang 2400: Remove
outlet fitting and clean outlet check
ball.
Suction tube is leaking. Check suction tube for cracks and
cuts. Make sure suction tube clamp
is on hose. Replace suction tube if
cracked or damaged.
Pump valves are worn. Check for worn valves, see page 14.
Problem Cause Solution