Esco LP-12, Инструкция по установке, эксплуатации и обслуживанию

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14
OPERATION – SECTION C
Review all SAFETY information in Section A.
Follow instructions on all tags, labels and decals
attached to the pump.
WARNING!
This pump is designed to handle mild
industrial corrosives, mud or slurries
containing large entrained solids. Do not
attempt to pump volatile; corrosive, or
flammable liquids which may damage the
pump or endanger personnel as a result of
pump failure.
CAUTION!
Pump speed and operating conditions must be
within the performance range shown on page
21
.
PRIMING
Install the pump and piping as describe in
INSTALLATION . Make sure that the piping
connections are tight, and that the pump is
securely mounted. Check that the pump is
properly lubricated (see
LUBRICATION in
MAINTENANCE AND REPAIR ).
This pump is self-priming, but the pump should
never be operated unless there is liquid in the
pump casing.
CAUTION!
Never operate this pump unless there is liquid
in the pump casing. The pump will not prime
when dry. Extend operation of a dry pump will
destroy the seal assembly.
Add liquid to the pump casing when:
1. The pump is being put into service for the
first time.
2. The pump has not been used for a
considerable length of time.
3. The liquid in the pump casing has
evaporated.
Once the pump casing has been filled, the pump
will prime and reprime as necessary.
WARNING!
After filling the pump casing, reinstall and
tighten the fill plug. Do not attempt to operate
the pump unless all connecting piping is
securely installed. Otherwise, liquid in the
pump forced out under pressure could cause
injury to personnel.
To fill the pump, remove the pump casing fill cover
or fill plug in the top of the casing, and add clean
liquid until the casing is filled. Replace the fill cover
or fill plug before operating the pump.
STARTING
Consult the operations manual furnished with the
power source.
Rotation
The correct direction of pump rotation is
counterclockwise when facing the impeller. The
pump could be damaged and performance
adversely affected by incorrect rotation. If pump
performance is not within the specified limits (see
the curve on page 21), check the direction of
power source rotation before further
troubleshooting.
If an electric motor is used to drive the pump,
remove V-belts, couplings, or otherwise disconnect
the pump from the motor before checking motor
rotation. Operate the motor independently while
observing the direction of the motor shaft, or
cooling fan.