Mart Cyclone 30 Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 300 / 322

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C. STOPPING THE PUMP.
1. Stop the pumping unit in accordance with the machine operating directions..
2. The pumping unit is now in the “off” position.
VI. MAINTENANCE.
A. BACKHEAD. The backhead is equipped with a throttle bushing. The inside diameter of the throttle
bushing will increase with wear. If the pump is not equipped with a shaft sleeve, the throttle bushing
requires replacement if the inside diameter is 1.644 inches or greater. If the pump is equipped with a shaft
sleeve, the throttle bushing requires replacement if the inside diameter is 1.905 inches or greater.
B. BEARING TEMPERATURE. Bearing temperature should be monitored periodically. Normal operating
temperatures are 120 degrees F to 160 degrees F, depending on the ambient temperature. Bearings may
appear to run hot when pump is first started. The lip seal, not the bearing, causes this to happen. When
the seal is seated, temperature should drop to normal.
Check bearing temperature by placing a pyrometer against the bearing frame while pump is running. A
temperature above 180 degrees F indicates possible damage or wear. The most common cause of high
bearing temperature is over greased bearings.
C. BEARING LUBRICATION. Lubrication frequency depends on operating conditions. Normal duty calls
for relubrication every 1000 hours of operation. Bearings are lubricated at Carver Pump Company with
Mobilith Grease AW2, which is a lithium complex soap type grease. Only Mobilith Grease AW2 should be
used. On the pump bearing frame, both bearings require grease.
To relubricate bearings, use the following procedure:
Over greasing creates heat and can damage the bearings. Do NOT over grease.
1. Never relubricate pump bearings while unit is running. If necessary, shut down pump in
accordance with section V, Operation.
Care must be taken to avoid excess pressure which may damage the lip seal.
2. Using a hand-operated grease gun on grease fittings, add approximately one ounce of fresh
grease for each bearing. Do NOT over grease. For new bearings see Paragraph VIII.C.2 on
page 9.
Bearing temperature may rise above normal immediately after lubrication, but should stabilize within 4 to
8 hours of operation.
VII. TROUBLESHOOTING.
If you have followed the installation and starting procedures outlined in this manual, the pump should
provide reliable service and long life. However, if operating problems occur, significant time and expense
will be saved if Table 1, Troubleshooting, is used to eliminate the most common causes of those
problems.
CAUTION
CAUTION