Graco HydraMax 350 Funcionamiento página 21

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WARNING/MISE EN GARDE/ADVERTENCIA/ADVERTÊNCIA
INJECTION HAZARD/DANGERS D'INJECTION/PELIGRO DE INYECCIÓN/PERIGO DE INJECÇÃO
To reduce risk of serious injury, whenever instructed to relieve pressure, do steps 1. – 3.; page 17.
Pour réduire le risque de blessure grave lors de chaque décompression, procéder aux opération
1 à 3 de la page 17.
Con el fin de reducir los riesgos de heridas graves cuando tenga que liberar la presión, lleve a cabo
los pasos 1. – 3.; página 17.
Para reduzir o risco de ferimentos graves sempre que for instruído para efectuar a descompressão,
siga os passos 1. – 3.; página 17.
PROBLEM
Gas engine pulls hard (won't start)
Gas engine will not start
Gas engine doesn't work properly
Gas engine operates, but
displacement pump doesn't operate
Displacement pump operates, but
output is low on upstroke
Displacement pump operates but
output is low on downstroke and/or
on both strokes
Paint leaks and runs over side of
wetcup
Excessive leakage around hydraulic
motor piston rod wiper
Fluid delivery is low
The sprayer overheats
Spitting from gun
DTS does not display
DTS displays error codes
Troubleshooting
CAUSE
Hydraulic pressure is too high
Switch OFF, low oil, no gasoline
Pump switch is OFF
Pressure setting too low
Displacement pump outlet filter
(if used) is dirty or clogged
Tip or tip filter (if used) is clogged
Hydraulic fluid too low
Hydraulic pump worn or damaged
Displacement pump rod seized by
dried paint
Directional valve not shifting
Piston ball check not seating properly.
Piston packings worn or damaged.
Piston packings worn or damaged.
Intake valve ball check not seating
properly.
Suction tube air leak
Loose wet–cup
Throat packings worn or damaged
Piston rod seal worn or damaged
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
Cooler is damaged
Oil level is low
Air in fluid pump or hose
Loose intake suction
Fluid supply is low or empty
Loose wiring
Bad LCD or board
Various over-pressure conditions
SOLUTION
Turn hydraulic pressure knob counterclockwise
to lowest setting
Consult engine manual, supplied
Consult engine manual, supplied
Set pump switch ON
Increase pressure, page 10
Clean the filter
Remove tip and/or filter and clean
Shut off sprayer and add fluid immediately*. See
page 8.
Bring sprayer to Graco distributor for repair
Service pump. See manual 309277.
Set pump switch OFF, then ON. Manual 309379.
Service piston ball check. See manual 309277.
Replace packings. See manual 309277.
Remove clip and retighten or replace packings.
See manual 309277.
Service intake valve ball check. See manual
309277.
Tighten suction tube
Tighten just enough to stop leakage
Replace packings. See manual 309277
Replace these parts. See manual 309379
Increase pressure, page 10
Clean filter
Tighten
Bring sprayer to Graco distributor for repair
Use larger diameter hose
Replace
Fill with oil. See page 8.
Check for loose connections on siphon
assembly, tighten, then reprime pump
Tighten
Refill supply container
Remove cover and correct poor connections
Bring sprayer to Graco distributor for repair
Page 25
309378
21

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