213W9378
Troubleshooting
WARNING/WAARSCHUWING/MISE EN GARDE/WARNUNG
INJECTION HAZARD/INJECTIEGEVAAR/DANGERS D’INJECTION/
GEFAHR DURCH MATERIALEINSPRITZUNG
To reduce risk of serious injury, whenever instructed to relieve pressure, do steps 1. – 3.; page 17.
Om het risico van ernstige verwonding te verminderen, moet steeds u de stappen 1 t/m 3 op blz. 17
uitvoeren, wanneer u de instructie krijgt de druk te ontlasten.
Pour réduire le risque de blessure grave lors de chaque décompression, procéder aux opération
1 à 3 de la page 17.
Um die Gefahr schwerer Verletzungen zu verringern, stets die Schritte 1. – 3. auf Seite 17
ausführen, wenn zum Druckentlasten aufgefordert wird.
PROBLEM CAUSE SOLUTION
Gas engine pulls hard (won’t start) Hydraulic pressure is too high Turn hydraulic pressure knob counterclockwise
to lowest setting
Gas engine will not start Switch OFF, low oil, no gasoline Consult engine manual, supplied
Gas engine doesn’t work properly Consult engine manual, supplied
Gas engine operates, but
displacement pump doesn’t operate
Pump switch is OFF Set pump switch ON
Pressure setting too low Increase pressure, page 10
Displacement pump outlet filter
(if used) is dirty or clogged
Clean the filter
Tip or tip filter (if used) is clogged Remove tip and/or filter and clean
Hydraulic fluid too low Shut off sprayer and add fluid immediately*.
See page 8.
Hydraulic pump worn or damaged Bring sprayer to Graco distributor for repair
Displacement pump rod seized by
dried paint
Service pump. See manual 309277.
Directional valve not shifting Set pump switch OFF, then ON. Manual 309379.
Displacement pump operates, but
output is low on upstroke
Piston ball check not seating properly.
Piston packings worn or damaged.
Service piston ball check. See manual 309277.
Replace packings. See manual 309277.
Displacement pump operates but
output is low on downstroke and/or
on both strokes
Piston packings worn or damaged.
Intake valve ball check not seating
properly.
Suction tube air leak
Remove clip and retighten or replace packings.
See manual 309277.
Service intake valve ball check. See manual
309277.
Tighten suction tube
Paint leaks and runs over side of
wetcup
Loose wet–cup
Throat packings worn or damaged
Tighten just enough to stop leakage
Replace packings. See manual 309277
Excessive leakage around hydraulic
motor piston rod wiper
Piston rod seal worn or damaged Replace these parts. See manual 309379
Fluid delivery is low Pressure setting too low
Displacement pump outlet filter
(if used) is dirty or clogged
Intake line to pump inlet is not tight
Hydraulic motor is worn or damaged
Large pressure drop in fluid hose
Increase pressure, page 10
Clean filter
Tighten
Bring sprayer to Graco distributor for repair
Use larger diameter hose
The sprayer overheats Cooler is damaged Replace
Oil level is low Fill with oil. See page 8.
Spitting from gun Air in fluid pump or hose Check for loose connections on siphon
assembly, tighten, then reprime pump
Loose intake suction Tighten
Fluid supply is low or empty Refill supply container
DTS does not display Loose wiring Remove cover and correct poor connections
Bad LCD or board Bring sprayer to Graco distributor for repair
DTS displays error codes Various over-pressure conditions Page 25
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