Troubleshooting - Graco GMax 232624 Instructions-Parts List Manual

WARNING
INJECTION HAZARD
To reduce risk of serious injury, including fluid injection or splashing in eyes or on skin, or injury from
moving parts, always follow Pressure Relief Procedure Warning, page 4, before checking, adjust-
ing, cleaning or shutting down sprayer.
Check everything in chart before disassembling sprayer.
PROBLEM
Engine won't start
Engine operates, but
displacement pump displacement pump
doesn't

Troubleshooting

CAUSE
Engine switch is OFF
Engine is out of gas
Engine oil level low
Spark plug cable disconnected or
spark plug damaged
Oil seepage into combustion
chamber
Pressure control switch turned OFF
Pressure setting too low
Displacement pump outlet filter dirty
Tip or tip filter clogged
Broken drive belt
Displacement pump rod seized by
dry paint
Connecting rod worn or damaged
Drive housing worn or damaged
Electrical power not energizing clutch field
Clutch worn or damaged
Pinion assembly worn or damaged
SOLUTION
Turn engine switch on.
Refill gas tank. Honda Engines Owner's Manual.
Try to start engine. Replenish oil, if necessary.
Honda Engines Owner's Manual.
Connect spark plug cable or replace spark plug.
Remove spark plug. Pull starter rope 3 or 4 times.
Clean or replace spark plug. Try to start engine.
Keep sprayer upright to avoid oil seepage.
Turn on.
Increase pressure.
Clean filter.
Clean tip or tip filter.
Replace belt.
Service pump. See page 14.
Replace. See page 7.
Replace. See page 8.
Check wiring connections. See page 20.
Reference control board diagnostics. See page 13.
With pressure control switch ON and pressure
turned to MAXIMUM, use a test light to check for
power between clutch terminals on control board.
Remove black clutch wires from control board and
measure resistance across wires. At 70_ F, the
resistance must be between 1.7
place pinion housing.
Have pressure control checked by authorized Gra-
co dealer.
Service. See page 9.
Service. See page 9.
± 0.2Ω; if not, re-
5
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