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OPERATION
OPERATION
Risk of electrical shock. Can burn or cause
death. Do not handle a pump or pump motor with wet hands
or when standing on a wet or damp surface, or in water.
Disconnect power from unit before attempting to check
why unit has stopped operating.
Risk of fire and explosion. Can cause severe
injury, property damage or death. Do not use in explosive
atmospheres. Pump water only with this pump.
The shaft seal depends on water for lubrication and cooling.
Do not operate the pump unless it is submerged in water as
the seal may be damaged if allowed to run dry.
The motor is equipped with an automatic reset thermal
protector. If the temperature in the motor should rise
unduly, the switch will cut off all power before damage
can be done to the motor. When the motor has cooled
sufficiently, the switch will reset automatically and restart
the motor.
If the protector trips repeatedly, the pump should be
removed and checked as to cause of difficulty. Low voltage,
long extension cords, clogged impeller, very low head or lift,
etc., could cause cycling.
The pump will not remove all water. If a manually operated
pump is operating and suddenly no water comes out of the
discharge hose, shut the unit off immediately. The water
level is probably very low and the unit has broken prime.
Do not change the tether length of the float switch (Fig 1.).
The float must be able to swing through its complete arc
without interference.
MY994_R (08-20-20)
All manuals and user guides at all-guides.com
3-1/2"
(89 mm)
Figure 1 – Float Switch Tether Length
AIRLOCKS
When a pump airlocks, it runs but does not move any water. An
airlock will cause the pump to overheat and fail. This pump has
a built in anti-airlock hole. Leakage from the anti-airlock hole is
normal.
If you suspect an airlock, unplug the pump, clean out the anti-
airlock hole with a paper clip or a piece of wire, and restart the
pump.
3649 0200
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