Graco XP 26C051, Instructions - Parts Manual

Page: 26 / 34

Maintenance
26 3A5314B
Maintenance
• Check double wall hopper heating fluid level
monthly. Add fluid as needed.
• Do not overfill when using oil. See overfilling notice
on page 25. See Hopper manual 312747 for filling
instructions.
• Follow pump maintenance instructions in Husky 205
diaphragm manual 308652.
• Follow heater maintenance instructions in Viscon
HP manual 309524.
Troubleshooting
Problem Cause Solution
Fluid fittings leaking. Loose fittings. Tighten fittings after the system reaches
the desired temperature.
Hose not heating to desired
temperature. Diaphragm flow rate set too high. Decrease diaphragm pump flow rate with
air needle valve.
Problem with Viscon HP heater. See Troubleshooting in Viscon HP heater
manual 309524.
Diaphragm pump not operating
correctly. - - - - See Troubleshooting in Husky 205 dia-
phragm pump manual 308652.
Oil overflowing out vented hop-
per side fill port during startup. Oil level higher than 3 in. (76.2 mm)
below fill port at room temperature
and at rest. Lower oil level to 3 in. (76.2 mm) below
hopper fill port. See 20 gallon hopper
manual 312747.
Hopper not reaching set tem-
perature when heating fluid
hose first. The heater capacity cannot compen-
sate for temperature loss in the
heated hose. Allow longer heating time. Insulate
heated hose bundle.
Air and heating fluid splatter is
exiting the hopper vented fitting. Diaphragm in Husky 205 diaphragm
pump is cracked. Replace the pump diaphragm. See man-
ual 308652 for parts.