Goulds Pumps 3996 - IOM - Manual (Page 31)

PREVENTIVE MAINTENANCE
GENERAL COMMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
MAINTENANCE OF BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 28
IMPELLER CLEARANCE SETTING . . . . . . . . . . . . . . . . . . . . . . . . 31
VIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
GENERAL COMMENTS
A routine maintenance program can extend the life of your pump. Well maintained equipment
will last longer and require fewer repairs. You should keep maintenance records, this will help
pinpoint potential causes of problems.
!
The preventive maintenance section must be adhered to in order to keep the applicable ATEX classification of the
equipment. Failure to follow these procedures will void the ATEX classification for the equipment.
MAINTENANCE SCHEDULE
ROUTINE MAINTENANCE
·
Bearing lubrication
·
Seal monitoring
·
Vibration analysis
·
Discharge pressure
·
Temperature monitoring
ROUTINE INSPECTIONS
·
Check level and condition of oil through sight glass
on bearing frame.
·
Check for unusual noise, vibration and bearing
temperatures.
·
Inspect pump and piping for leaks.
·
Check seal chamber/stuffing box leakage.
Mechanical Seal: Should be no leakage.
Packing: Excessive leakage requires adjust-
ment or possible packing replacement. Re-
fer to Section 4 - Operation for packing
gland adjustment.
3 MONTH INSPECTIONS
·
Check the foundation and the hold-down bolts for
tightness.
·
If the pump has been left idle, check the packing.
Replace if required.
·
Oil should be changed at least every 3 months (2000
hours) or more often if there are any adverse
atmospheric conditions or other conditions which
might contaminate or break down the oil. If it is
cloudy or contaminated as seen by inspection
through the sight glass, it should be changed
immediately.
·
Check the shaft alignment. Realign if required.
ANNUAL INSPECTIONS
·
Check the pump capacity, pressure and power. If
pump performance does not satisfy your process
requirements, and the process requirements have not
changed, the pump should be disassembled,
inspected, and worn parts should be replaced.
Otherwise, a system inspection should be done.
INSPECTION INTERVALS
Inspection intervals should be shortened appropriately if
the pumpage is abrasive and/or corrosive,
!
or if the environment is classified as potentially
explosive.
3996 IOM 9/2010
27
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