Xylem A-C Fire Pump – Vertical Turbine Fire Pump AC8499 - Manual (Page 26)

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APPENDIX I
FIELD SERVICE
INSTALLATION AND STARTUP CHECKLIST
Part 2: Pump Assembly Pre-Start Inspections and Checks
__________ 1) Verify that the drivers (motors, gears, engines, etc.) are properly lubricated before startup. On drives with
grease lubricated motor bearings, insist that they be greased on site as motor vendors generally only add
grease to the bearing itself during assembly. Inspection will usually reveal the in and out ports as well as the
reservoir to be "dry". Lubrication information can usually be found on special tags on most motors or in the
motor manuals and this gives type and quantity of lubrication to be used.
__________ 2) Determine the allowable number of cold/hot starts with the motor vendor. This is very important especially
during initial startup when numerous "bugs" have to be worked out of the system and controls. The general
rule of thumb is two cold or one hot start per hour. Exceeding the recommended starts breaks down the
motor’s insulation and can cause failure. Merger the motor if possible.
__________ 3) Prior to coupling up the driver to the pump, verify proper rotation of the driver by "bumping" it. Note that the
proper rotation for our vertical pumps is CCW when viewed from above. In addition to verifying rotation, run
uncoupled to insure that the driver runs smooth and sounds normal. Note that on units with VHS motors,
you must remove the driveshaft if a coupling is provided and the steady bushing and driver coupling in the
event one is not provided. On drivers with NRR’s remove ratchet pins, if possible. Otherwise, rotate the
drive coupling clockwise until pin stops tight against ratchet plate. If customer refuses to allow a check of
rotation, make a notation in Section 4B and have customer sign and date before proceeding.
__________ 4) Only after verifying the proper rotation of the driver, proceed with the coupling of the pump to the driver.
On VHS units you will set the impeller lift using the adjusting nut atop the motor. The specific impeller lift
required for an individual pump will be listed on the pump nameplate and can also be found on the outline
drawing.
__________ 5) Special alignment of the pump to the motor is not usually required as all components are equipped with
register fits. An exception to this is a pump equipped with jacking bolts. A unit so equipped requires
the motor be physically aligned to the pump.
__________ 6) Upon completion of coupling of the pump to the driver, and the setting of the impeller lift, verify, using a dial
indicator, that the shaft run-out above the sealing element is not excessive.
LIMITS: PACKING = MAX. .008"
__________ 7) On units with packing, do not over-tighten the gland. Excessive leakage should be eliminated over time and
not all at once. Normal leakage is 60 drops/minutes = 13 liters/day.
__________ 8) On water lubricated, enclosed lineshaft units, check the water PSI and flow rate. Check the solenoid valve
and its connection for proper operation.