Graco ToughTek F680e, Инструкция по эксплуатации

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Troubleshooting
Troubleshooting Troubleshooting Troubleshooting
1. Perform Pressure Relief Procedure, page 24 .
2. Check all possible problems, causes, and
solutions listed below before disassembling
pump.
For troubleshooting and repair questions, please
contact your local Graco distributor.
Problem Problem Problem Cause Cause Cause Solution Solution Solution
Piston ball check not seating
properly Service the piston ball check. Displacement pump
operates, but output is
low on upstroke
Piston packings worn or
damaged Replace the packings.
Piston packings worn or
damaged Tighten packing nut or replace packing.
Intake valve ball check not
seating properly Service the intake valve ball check.
Hopper elbow air leak Tighten the clamps on the hopper elbow.
Fluid hose/applicator is
obstructed Clear the hose or applicator.
Displacement pump
operates, but output is
low on down stroke and/or
on both strokes
Hose ID is too small Use a hose with a larger ID.
Loose wet cup Tighten wet cup enough to stop leakage. Material leaks and runs over
the side of the wet cup
Throat packings worn or
damaged Replace the packings.
Pressure setting too low Increase the pressure.
Applicator gun or tip is dirty or
clogged Clean or replace the gun or tip.
Clamps on hopper elbow are
loose Tighten the clamps on the hopper elbow.
Hydraulic motor is worn or
damaged Bring the sprayer to a Graco distributor for
repair.
Fluid delivery is low
Large pressure drop in fluid hose Reduce hose length and/or increase
diameter.
Material buildup on hydraulic
components Clean the hydraulic components. The sprayer overheats
Oil level is low Fill with oil.
Pump noise Low hydraulic fluid level Turn the sprayer OFF and add hydraulic
fluid.
44 3A3110K