Graco 2626LD, 2525LD Troubleshooting, Perform Pressure Relief Procedure Problem Cause Solution

Troubleshooting

Perform Pressure Relief Procedure (page 7).

Problem

Cause

Solution

Engine will not start or is hard to start.

No gasoline in fuel tank or carburetor	Fill tank with gasoline, open fuel shutoff valve.
	Check fuel line and carburetor.
Low oil	Add oil to proper level.
Throttle in STOP position (model	Move throttle to FAST (rabbit) position
2525LD only)

Water in fuel or old fuel

Drain fuel tank and carburetor. Use new fuel andmake sure spark plug is dry.

Engine flooded or improperly choked

Open choke, pull engine starter rope several times to clear out fuel. Make sure spark plug is dry.

Dirty air cleaner filter

Remove and clean.

Spark plug dirty, wrong gap, or wrong type

Clean, adjust gap or replace.

	Gun not triggered	Trigger gun while starting engine.
Engine misses or	Partially plugged air cleaner filter	Remove and clean.
lacks power
	Spark plug dirty, wrong gap, or wrong	Clean, adjust gap or replace.
	type
Pressure is too low	Worn or wrong size tip	Replace with tip of proper size.
and/or pump runs
	Inlet filter clogged	Clean. Check more frequently.
roughly
	Worn packings, abrasives in water, or	Check filter. Replace packing.
	natural wear
	Inadequate water supply	Check water flow rate to pump.
	Fouled or dirty inlet or discharge valves	Clean inlet and discharge valve assemblies.
		Check filter.
	Restricted inlet	Garden hose might be collapsed or kinked.
	Worn inlet or discharge valves	Replace worn valves.
	Leaking high–pressure hose	Replace high–pressure hose.
Water leaks from	Worn packings	Install new packings.
under pump manifold
	Loose fitting connections	Check all fitting connections. TIghten if loose.
Water on oil side of	Worn packings	Install new packings.
pump
	Oil seals leaking	Install new oil seals.

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