Graco 260110, Instructions-Parts List Manual

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Troubleshooting
8 311307E
Troubleshooting
Problem Cause Solution
Motor runs but pump will not
prime. Motor rotation wrong. Check wiring instructions for
possible problems (260112
only).
Dirt under pressure relief valve
or seal. Remove pressure relief valve
and inspect, clean, or replace if
damaged.
Oil depth too high to prime. See Priming Pump , page 6.
Worn or damaged gears. Remove cover and inspect
gears. Replace if worn or
damaged.
Oil level low. Refill tank.
Cover seal damaged. Replace if worn or damaged.
Air leak in suction tube. Inspect all joints in suction
tube, make sure all joints have
sealant applied.
Air lock in system. This may occur if filter or meter
or automatic shut-off nozzle is
used. If this occurs, fill pump
and meter with fluid through
top of pump.
Motor does not run at proper
speed. Check electric connections.
Ensure supply voltage is at the
proper level.
Oil leaking in motor mount. Faulty or damaged motor shaft
seal. Replace shaft seal (4).
Motor shaft worn. Replace motor (5) if shaft has
groove worn in seal area.
Unit pumps but output flow is
low. Air leak in suction tube. Check to make sure all joints in
suction tube are sealed.
Suction tube too close to tank
bottom. Suction tube must have a 2 in.
(51 mm) minimum clearance.
Tank empty. Refill tank.
Tank not vented. Tank must be vented to atmo-
sphere.
Worn or damaged gears. Remove cover and inspect
gears (3). Replace if worn or
damaged.
Damaged motor. Replace motor (5).
Clogged hose or nozzle. Inspect and clean.