Flowserve Pump Division - 21
SECTION V: Maintenance
CAUTION: DURING THE WARRANTY PERIOD, FACTORY APPROVAL MUST BE OBTAINED
PRIOR TO MAKING REPAIRS. FAILURE TO GET APPROVAL WILL VOID THE
WARRANTY.
WARNING: MOTORS NAMEPLATED CLASS 1, DIVISION1, GROUP C & D MUST BE SERVICED
BY CERTIFIED FLOWSERVE PUMP DIVISION SERVICE PERSONNEL. THIS
INCLUDES, BUT IS NOT LIMITED TO SERVICE ON THE ROTOR, STATOR,
BEARINGS, CABLE, CABLE GLANDS AND GROMMETS. SERVICE BY PERSONS
OTHER THAN CERTIFIED FLOWSERVE PUMP DIVISION SERVICE PERSONNEL
VIOLATES SAFETY REGULATIONS, NEGATES THE EXPLOSION FROOF
CERTIFICATION AND VOIDS THE FACTORY WARRANTY.
ALL MOTORS UNDER WARRANTY MUST BE SERVICED BY CERTIFIED
FLOWSERVE PUMP DIVISION SERVICE PERSONNEL. SERVICE BY PERSONS
OTHER THAN CERTIFIED FLOWSERVE PUMP DIVISION SERVICE PERSONNEL
VOIDS THE FACTORY WARRANTY.
POWER CABLE
Pay special attention to the power supply cables during maintenance. Where the power supply cables
are subject to chafing and vibrating, fasten them in wooden blocks or protect them by means of cable
guards.
CAUTION: DO NOT BEND THE CABLES TO A RADIUS BELOW 4 TIMES THE CABLE
DIAMETER.
CAUTION: DO NOT LIFT THE UNIT BY THE POWER CABLES.
CAUTION: PER ANSI/NFPA 70 (NEC) SECTION 400-9, POWER CABLES MAY NOT BE
SPLICED DURING INITIAL INSTALLATION. SPLICES FOR NON-EXPLOSION
PROOF MOTORS OCCURRING AFTER INITIAL INSTALLATION MUST CONFORM
TO ANSI/NFPA 70 SECTION 400-9.
CAUTION: POWER CABLES FOR MOTORS NAMEPLATED CLASS 1, DIVISION 1, GROUP C &
D MUST BE CONTINUOUS PER ANSI/NFPA 70 SECTION 501-11. NO CABLE
SPLICES ARE PERMITTED. POWER CABLES ARE TO BE REPLACED ONLY WITH
AN APPROVED POWER CABLE PURCHASED FROM FLOWSERVE PUMP
DIVISION. POWER CABLE REPLACEMENT WITH A NON-APPROVED POWER
CABLE WILL VOID THE FACTORY WARRANTY AND NEGATE THE EXPLOSION
PROOF CERTIFICATION.
INSPECTIONS
Regular observations should be made of the pump operation to avert trouble. Whether or not you consider
a log of these inspections necessary, the operator must be alert for irregularities in the operation of the
pump(s). Any trouble symptoms, which are detected, should be reported immediately. Motor noise, power
consumption, vibration, and pump output should be checked periodically. An abrupt change in any of the
above is much more indicative of trouble than a consistently high reading.
Semiannual and Annual Inspection
Check for stable and smooth operation. Check the unit running records for hourly usage vs. power
consumption, vibration and pump output to determine if internal inspection is required. The cooling fluid
should be inspected at this time for quantity and quality. Reference replacing cooling fluid (refer to page
24) for inspection guidelines.
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