Stancor SEW Series, Инструкция по установке, эксплуатации и обслуживанию

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6
Operation
1. Before starting the pump
a. After completing installation, measure the insulation resistance again as described in Installation.
b. Check water level.
If the pump is operated continuously for an extended period of time in a dry condition or at the lowest water
level, the motor protector will be activated. Constant repetition of this action will shorten pump service life. Do
not start the pump again in such a situation until after the motor has completely cooled.
2.
Test operation….
Non-automatic pump
Automatic pump
a. Turn the operating switch on and off a couple of times to check for normal pump start.
Floating switch must be raised for the pump to start.
b. Next, check direction of rotation. If discharge volume is low or unusual sounds are heard when the pump is
operating, rotation has been reversed. When this happens, reverse two of the wires.
Maintenance
Check pressure, output, voltage, current and other specifications. Unusual readings may indicate.
Refer to Troubleshooting and correct as soon as possible.
1.
Daily inspections
Check current and ammeter fluctuation daily. If ammeter fluctuation is great, even though within the limits of pump
rating, foreign matter may be clogging the pump. If the quantity of liquid discharged falls suddenly, foreign matter
may be blocking the suction inlet.
2. Regular inspections
Monthly inspections
Measure the insulation resistance. The value should be more than
1M ohm
. If resistance starts to fall rapidly even
with an initial indication of over 1M ohm, this may be an indication of trouble and repair work is required.
Annual inspections
To prolong the service life of the mechanical seal by replacing the oil in the mechanical seal chamber once a year.
Water mixed the oil or cloudy textures are indications of a defective mechanical seal requiring replacement. When
replacing the oil, lay the pump on its side with filler plug on top. Inject suitable amount turbine oil No.32 (ISO VG-32)
.
Inspections at 3-5year intervals
Conduct an overhaul of the pump. These intervals will preclude the possibility of future trouble.
3.
Parts that will need to be replaced
Replace the appropriate part when the following conditions are apparent.
Replaceable part Mechanical seal Oil filler plug O-ring Lubricating oil O-ring
Replacement guide
Whenever oil in
mechanical seal
chamber is clouded
Whenever oil is replaced
or inspected
Whenever clouded or dirty Whenever pump is
overhauled
Frequency Annually A half yearly A half yearly Annually
Note: above replacement schedule is based on normal operating conditions
.
Motor output 1.5HP 2HP 3HP
Mechanical seal 15Ø
Oil seal 15Ø
x
24Ø
x
7 t
Oil filler plug O-ring
(
Inner diameter) x (outer diameter) x (thickness) =
7.52Øx14.5Øx3.53 t
Lubricating oil
( turbine oil #32)
280 cc