BOMBAS IDEAL CPH Serie Manual De Uso Y Mantenimiento página 28

Bombas Ideal, S.A.
11.7-Routine maintenance chart
Preventive maintenance schedule is periodical checks and precautions by which possibilities
of failure and breakdown are made very remote.
EVERY WEEK
EVERY MONTH
EVERY 3 MONTHS
EVERY 6 MONTHS
EVERY YEAR
11.8-Overhauling
With normal daily operating spell, the pump will be due for overhaul after about 5000 working hours. This
work should be done by skilled personnel. Please refer to the cross sectional drawing while dismantling
and reassembling the pump. Please also refer to chart given at end of this booklet.
11.9-Joint flange :tightening torques and sequence
Stud and Nut use in this main joint flange of CP pumps should be tightened to the torques stated in table
and in the sequence stated in Fig. 1
STUD SIZE
M12
M16
M20
M24
Tighten the four corner stud marked 'X' 1,2,3, and 4
Work outward along shaft axis towards the stuffing boxes in opposite quarters tightening nut in regions
5,6,7 and 8.
Work outwards along the branch and in opposite quarters tightening nuts in regions 9,10,11, and 12.
Repeat the whole sequence.
Visually check for leaks
Check for vibration.
Adjust gland as necessary to maintain slight leakage.
Hand test bearing housing for any sign of temperature.
Voltage and current.
Check bearing temperature with thermometer.
Check grease lubricated bearings for saponification.
Check the packing and replace if necessary.
Check shaft or shaft sleeve for scoring.
Check alignment of pump and motor.
Check holding down bolts for tightness.
Check coupling bush/rubber star.
Check rotating element for wear.
Check wear ring clearances.
Clean and regrease bearings.
Measure total dynamic suction and discharge.
Head as a test of pipe connection.
TIGHTENING TORQUES
260 Kg-CM
660 Kg-CM
1300 Kg-CM
2250 Kg-CM
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