KIRLOSKAR i-HT, Инструкция по установке, эксплуатации и обслуживанию

Страница: 14 / 50

IOM/i_HT Issue Date: 26/06/2009
Page 14 of 50
Last Revision:26/10/2009
4.1.7 Pump is primed. Never run the unit dry. The liquid in the pump serves as a lubricant
for close running fits within the pump and the pump may be damaged if operated dry.
The pump may be primed by using an ejector, exhauster or vacuum pump. If a foot valve
is used in the suction line, the pump may be primed by venting and filling the casing with
liquid.
4.2 Starting
4.2.1 Close valve in discharge line.
4.2.2 Open fully all valves in the suction line.
4.2.3 Turn on seal water to the stuffing box where external pipe supplied.
4.2.4 Prime the pump.
4.2.5 Start the pump driver.
4.2.6 When the pump is operating at full speed, open the discharge valve slowly.
Do not operate pump for prolonged periods with closed discharge valve, so as to avoid
overheating.
The pump should be shut down at once and the trouble corrected if the pump is running
at its rated speed and found to have any of the following defects:
a) No liquid delivered.
b) Not enough liquid delivered.
c) Not enough pressure.
d) Loss of liquid after starting.
e) Excess vibration.
f) Motor runs hot.
g) Pump bearing overheating .
4.3 Running
While the pump is running, a periodic inspection should be made of:
a) Stuffing box (soft packed pumps only). Ensure there is sufficient leakage to lubricate
the packing.
b) Bearings. Check the bearings for temperature, which should not exceed pumped liquid
temperature or 80 Deg. C whichever is the lower.