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Troubleshooting
6 311305E
Troubleshooting
Problem Cause Solution
Motor runs but pump will not
prime.
Motor rotation wrong.
(260100 only)
Check wiring instructions for
possible problems.
Dirt under pressure relief valve. Remove pressure relief valve
and inspect, clean, or replace if
damaged.
Worn or damaged gears. Remove cover and inspect
gears. Replace if worn or dam-
aged.
Oil level low. Refill tank.
Cover seal (5) damaged. Replace if worn or damaged.
Inlet suction screen clogged
(used oil).
Remove and clean or replace.
Air leak in suction tube. Inspect all joints in suction
tube, make sure all threaded
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
proper level.
Oil leaking in motor mount. Faulty or damaged motor shaft
seal.
Replace shaft seal (4).
Operating pump extended time
with nozzle closed.
Do not exceed 5 minutes of
operation with nozzle closed.
Motor shaft worn. Replace motor if shaft has
groove worn in seal area.