Troubleshooting
20
3A3392B Operation
Pump is difficult to prime. Air in pump or hose.
Check and tighten all fluid connections.
Reduce engine speed and cycle pump as slowly
as possible during priming.
Intake valve is leaking.
Clean intake valve. Be sure ball seat is not nicked
or worn and that ball seats well. Reassemble
valve.
Pump packings are worn.
Replace pump packings. Manual 311845.
Paint is too thick.
Thin the paint according to the supplier's recom-
mendations.
Engine speed is too high.
Decrease throttle setting before priming pump.
High engine speed at no
load.
Mis-adjusted throttle setting.
Reset throttle to 3700-3800 engine rpm at no
load.
Worn engine governor.
Replace or service engine governor.
Low stall or run pressure
shown on display.
New pump or new packings.
Pump break-in period takes up to 100 gallons of
material.
Excessive paint leakage
into throat packing nut.
Throat packing nut is loose.
Remove throat packing nut spacer. Tighten throat
packing nut just enough to stop leakage.
Throat packings are worn or damaged.
Replace packings. Manual 311845.
Displacement rod is worn or damaged.
Replace rod. Manual 311845.
Fluid is spitting from gun. Air in pump or hose.
Check and tighten all fluid connections. Reprime
pump.
Tip is partially clogged.
Clear tip. Manual 311254.
Fluid supply is low or empty.
Refill fluid supply. Prime pump.Check fluid supply
often to prevent running pump dry.
Excessive leakage
around hydraulic motor
piston rod wiper.
Piston rod seal worn or damaged.
Replace these parts.
Fluid delivery is low.
Pressure setting too low.
Increase pressure.
Displacement pump outlet filter (if used) is dirty or
clogged.
Clean filter.
Intake line to pump inlet is not tight.
Tighten.
Hydraulic motor is worn or damaged.
Bring sprayer to Graco distributor for repair.
Large pressure drop in fluid hose.
Use larger diameter or shorter hose.
The sprayer overheats.
Paint buildup on hydraulic components.
Clean.
Oil level is low.
Fill with oil.
Excessive hydraulic
pump noise.
Low hydraulic fluid level.
Shut off sprayer. Add fluid*
Problem
Cause
Solution
Содержание LineLazer 130HS
Страница 23: ...Notes 3A3392B Operation 23 Notes ...
