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Troubleshooting
To reduce risk of injury due to sprayer starting
unexpectedly, shut off engine before performing
checks or service.
WARNING
Check everything in chart before disassembling sprayer.
PROBLEM CAUSE SOLUTION
Engine does not start Engine switch not ON Turn engine switch ON
Out of gas Fill gas tank
Engine oil level low If engine oil light glows, add oil.
Spark plug cable disconnected or
spark plug damaged
Connect spark plug cable or replace
spark plug
Engine does not fire Oil seepage into combustion
chamber
Remove spark plug. Pull starter rope 3 or
4 times. Clean and install spark plug. Try
to start. Keep sprayer upright to avoid oil
seepage.
Engine operates, but
p
p
p
Flow control set wrong Set in PRIME mode
sp
acement pump
oes not
Air supply to air control or gun is
not connected
Check and tighten connections
Air compressor not on Start compressor
Engine RPM too low Increase engine speed
Air leak at pump foot valve or
siphon tube elbow
Be sure foot valve is tight each day.
Be sure seal in elbow is in place and is
not worn or damaged.
Tip clogged Clean tip
Insufficient compressor air Increase SCFM or compressor size.
System requires a minimum of 30 psi
(0.28 MPa, 2.8 bar) to operate.
Displacement pump rod seized by
dry coating
Service pump. See page 7.
Connecting rod worn or damaged Replace connecting rod. See page 10.
Drive housing worn or damaged Replace drive housing. See page 11.
Clutch worn or damaged Service clutch. See page 14.
Pinion assembly worn or damaged Service pinion assembly. See page 12.
Engine starts but dies Oil level drops below oil sensor Add oil
Sudden pressure loss System has overpressurized, which
opened Pressure Drain Valve
Check for plugged tip or hose and correct.
Restart pump.
Air to sprayer or gun stopped Check, correct.
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