moyno 35650, Руководство по обслуживанию

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TROUBLE SHOOTING
WARNING: Before making adjustments,
disconnect power source and
thoroughly bleed pressure from
system. Failure to do so could result
in electric shock or serious bodily
harm.
Failure To Pump.
1.
Motor will not start: Check power supply. Voltage
must be ± 10% of nameplate rating when motor is
in locked rotor condition.
2.
Motor runs and thermally kicks out: Check for
excessive pressure. Increase ventilation to motor.
Do not use less than #14 wire size.
3.
Stator torn; possible excessive pressure: Replace
stator, check pressure at discharge port.
4. Flexible joint broken; possible excessive
pressure:
Replace joint, check pressure at discharge port.
5.
Wrong rotation: Rotation must be clockwise when
facing pump from motor end. Reverse the
connections of any two line leads to the motor.
6.
Excessive suction lift or vacuum.
Pump Overloads.
1.
Excessive discharge pressure: Check pressure at
discharge port for maximum ratings given in Table
2.
Fluid viscosity too high: Limit fluid viscosity to 100
CP or 500 SSU.
Noisy Operation.
1.
Excessive suction lift or vacuum: Maximum suction
lift is 25 feet for water.
2.
Suction line too small: Check pipe size. Be sure
lines are free from obstructions.
3.
Pump cavitates: Pump speed is 1725 rpm.
Viscosity of fluid should not exceed 100 CP or 500
SSU.
4.
Flexible joint worn: Replace joint. Check pressure
at discharge port.
5.
Insufficient mounting: Mount to be secure to a firm
base. Vibration induced noise can be reduced by
using mount pads and short sections of hose on
suction and discharge ports.
Seal Leakage.
1.
Leakage at startup: If leakage is slight, allow pump
to run several hours to let faces run in.
2.
Persistent seal leakage: Faces may be cracked
from freezing or thermal shock. Replace seal.
Pump Will Not Prime.
1.
Air leak on suction side: Check pipe connections.
PUMP DISASSEMBLY
WARNING: Before disassembling pump,
disconnect power source and
thoroughly bleed pressure from
system. Failure to do so could result
in electric shock or serious bodily
harm.
1.
Disconnect power source.
2.
Remove suction and discharge piping.
3.
Remove screws (112) holding suction housing (2)
to discharge housing (1). Remove suction housing
(2) and stator (21).
4.
Rotor (22) can be detached from flexible joint (24)
by using a punch to remove rotor pin (45). Support
joint when removing pin.
5.
Flexible joint (24) can be removed from motor
shaft by using a punch through the discharge port
to remove shaft pin (46).
6.
Carefully slide mechanical seal (69) off motor
shaft.
7.
Remove discharge housing (1) from motor (70) by
removing screws (112A and 112C) and washers
(215).
8.
Carefully pry seal seat out of discharge housing
(1). If any part of mechanical seal (69) is worn or
broken, the complete assembly should be
replaced. Seal components are matched parts and
not interchangeable.
9.
Remove slinger ring (77).
PUMP ASSEMBLY
1.
Replace slinger ring (77).
2.
Attach discharge housing (1) to motor (70)
using
lock washers (215) and body screws (112A).
3.
Install mechanical seal (69) using the following
procedures:
a.
Clean and oil sealing faces using light oil (not
grease).
Caution: Do not use oil on EPDM parts.
Substitute glycerin or soap and water.
b.
Oil the outer surface of seal seat, and push
assembly over motor shaft into the bore of the
discharge housing (1) seating it firmly and
squarely.
c.
After cleaning and oiling the shaft, slide the
seal body along the shaft until it meets the seal
seat.
d.
Install seal spring and spring retainer on shaft.
4.
On Model 367, position seal spacer (69A) on
motor shaft with slots away from seal (69).
5.
Pin flexible joint (24) to motor shaft with shaft pin
(46) using a punch through the discharge port.
6.
Pin rotor (22) to flexible joint using rotor pin (45).
Support joint while installing pin.
7.
Slide stator (21) on rotor (22) carefully
locating
stator flange in housing groove
.
8.
Secure stator (21) and suction housing (2) to
discharge housing (1) using screws (112).
9.
Proceed as in installation instructions.
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