Troubleshooting - Graco 3325 HA-DD Operation - Repair - Parts

Troubleshooting

Troubleshooting
Problem
Engine not starting or hard to start
Engine not operating properly or
lacking power
Pressure too low and/or pump
running roughly
Water leaking from under pump
manifold
18
1. Follow Pressure Relief Procedure, page 10,
2. Check all possible problems and causes before
Cause
No gasoline in fuel tank or carburetor Fill the tank with gasoline and open
Low oil
Start/Stop switch in STOP position
Water in fuel, or old fuel
Engine flooded or improperly choked Open choke, and crank engine
Dirty air cleaner filter
Dirty spark plug, wrong gap, or wrong
type
Gun not triggered
Partially plugged air cleaner filter
Spark plug dirty, wrong gap, or wrong
type
Worn or wrong size nozzle
Inlet filter clogged
Worn packings, abrasives in water, or
natural wear
Inadequate water supply
Belts slipping
Fouled or dirty inlet or discharge
valves
Restricted inlet
Worn inlet or discharge valves
Leak in high-pressure hose
Worn packings
before checking or repairing gun.
disassembling gun.
fuel shut off valve.
Check fuel line to carburetor.
Add oil to proper level.
Move switch to START position.
Drain fuel tank and carburetor. Use
new fuel, and make sure spark plug is
dry.
several times to clear out gas. Make
sure spark plug is dry.
Remove and clean.
Clean spark plug, adjust the gap, or
replace.
Trigger gun while starting engine.
Remove and clean.
Clean spark plug, adjust the gap, or
replace.
Replace with nozzle of proper size
Clean filter. Check more frequently.
Check filter. Replace packings.
Check water flow rate to pump.
Tighten or replace belts; use correct
belts, and replace both at same time.
Clean inlet and discharge valve
assemblies. Check filter.
Check if garden hose is collapsed or
kinked.
Replace worn valves.
Replace high-pressure hose.
Install new packings.
Solution
3A6588B