HERO D23 - TROUBLESHOOTING

MANL-00005-A - D Series Rotary Dispensers.docx 26
TROUBLESHOOTING
For technical support, contact HERO Customer Service at 800-494-4376 or customercare@hero.ca.
PROBLEM
CAUSE
SOLUTION
Intermittent spurts of
colorant from the nozzle
during dispensing
Low colorant level, allowing air into
the pump cylinder.
Fill canister and operate the plunger
several times, without opening the
valve. Dispense colorant into a paper
cup to remove the air.
Pump not properly primed
Prime pump
End cap twists or lifts during
operation.
End cap loose on cylinder.
Push down end cap onto the cylinder,
and lightly tighten the two set screws
until it can no longer be twisted by
hand.
Canister is loose on
turntable.
Tighten the mounting screws
Colorant appears on the
piston shaft, and or gauge.
Worn or loose piston seals.
Refer to replacement of piston seals
page 12.
Colorant does not dispense
easily.
Nozzle is clogged or too small.
Clear nozzle of obstructions.
If problem continues, use a larger
nozzle.
(three extra nozzles are supplied with
unit.)
Colorant is too heavy
Thoroughly clean out canister and refill
with new colorant.
Pump tube is loose on the
canister.
Pump attaching bolts are loose.
Remove canister and tighten the bolts
Colorant leaks around the
outlet nozzle
Nozzle O-Ring is lost or damaged.
Inspect or replace.
Colorant leaks around the
Accu-purge button
Leaking O-Ring
Clean or replace O ring as required
Colorant leaks from side of
dispenser handle.
Worn or damaged valve barrel O-
Ring
Replace valve assembly
Gauge line does not line up
with plunger handle
Loose plunger handle
Tighten plunger handle.