Troubleshooting - Graco A Series Instructions-Parts List Manual

Perform Pressure Relief Procedure (page 9).
Problem
Engine will not start or No gasoline in fuel tank or carburetor.
is hard to start.
Low oil.
Throttle in STOP position. (Model
2525LD only)
Water in fuel or old fuel.
Engine flooded or improperly choked.
Dirty air cleaner filter.
Spark plug dirty, wrong gap, or wrong
type.
Gun not triggered.
Engine misses or Partially plugged air cleaner filter.
l k lacks power.
Spark plug dirty, wrong gap, or wrong
type.
Pressure is too low Worn or wrong size tip.
and/or pump runs d/
Inlet filter clogged.
roughly. roughly.
Worn packings, abrasives in water,
or natural wear.
Inadequate water supply.
Fouled or dirty inlet or discharge valves.
Restricted inlet.
Worn inlet or discharge valves.
Leaking high--pressure hose.
Water leaks from Worn packings.
under pump manifold. d if ld
Loose fitting connections.
Water on oil side of Worn packings.
pump.
Oil seals leaking.
24
309912

Troubleshooting

Cause Solution
Fill tank with gasoline, open fuel shutoff valve.
Check fuel line and carburetor.
Add oil to proper level.
Move throttle to FAST (rabbit) position.
Drain fuel tank and carburetor. Use new fuel
and make sure spark plug is dry.
Open choke, pull engine starter rope several
times to clear out fuel. Make sure spark plug
is dry.
Remove and clean.
Clean, adjust gap or replace.
Trigger gun while starting engine.
Remove and clean.
Clean, adjust gap or replace.
Replace with tip of proper size.
Clean. Check more frequently.
Check filter. Replace packing.
Check water flow rate to pump.
Clean inlet and discharge valve assemblies.
Check filter.
Garden hose might be collapsed or kinked.
Replace worn valves.
Replace high--pressure hose.
Install new packings.
Check all fitting connections. TIghten if loose.
Install new packings.
Install new oil seals.