Pro Rider Operations Manual
Rev. 08/2016
Page | 23
PROBLEM
CAUSE
SOLUTION
Resin hose plugged.
Danger: To prevent injury,
always relieve fluid pressure
before attempting to remove
components.
Flush hose with solvent. If
material is hard, replace hose.
Pick-up wand assembly
leaking.
Tighten assembly fittings.
Resin filter clogged.
Disassemble and clean the
resin filter. See Chapter 7:
Accumulator & Filter.
Material too cold or air
pressure low.
Heat material or increase
pump pressure.
Narrow Fan
Material too cold, nozzle too
large or air pressure low.
Heat Material, use smaller
nozzle, or as a last resort
increase pump pressure.
Resin filter clogged.
Disassemble and clean the
resin filter.
Wide Fan
Air pressure too high.
Lower pressure then increase
pressure to
the desired fan.
Nozzle too small or too wide.
Change nozzle.
Round fan
Orifice in nozzle worn,
clogged,
or damaged.
Push fine wire through orifice
from back side. Use
fingernail to clean material
form “V” shaped notch in front.
Soak hardened material in
solvent. If notch is rough or
worn,
replace nozzle.
Air-assist pressure too high.
Decrease air-assist pressure.
Excessive Misting
Pump air pressure too high.
Reduce air pressure to gel
coat pump.
Heavy pulsation
Resin accumulator plugged.
Danger: To prevent injury,
always relieve fluid pressure
before attempting to remove
components.
Disassemble accumulator and
clean.
Pump jumps on upstroke
Piston ball worn or not seating
properly.
Replace piston ball and piston
cups. Be sure to lubricate ball
and cups thoroughly with Red
Grease. See Chapter 6: Pro
Pump.