Troubleshooting
16 332156E
Fluid delivery is low. Pressure setting too low Increase pressure, page 4
Displacement pump outlet filter (if
used) is dirty or clogged
Clean filter
Intake line to pump inlet is not tight Tighten intake line
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.
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
Excessive hydraulic pump noise Low hydraulic fluid level Turn sprayer OFF. Add fluid*
*Check hydraulic fluid level often. Do not allow it to become too low. Use only Graco approved hydraulic fluid, page 8.
PROBLEM CAUSE SOLUTION
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