Goulds Pumps SRL Series - IOM - Manual (Page 17)

Page 3
START-UP and OPERATION
STARTING THE PUMP
1. Check the direction of rotation of the driver. All SRL,
SRL-C, SRL-XT, and SRL-XT pumps are designed for
clockwise rotation (looking at the pump from the drive end). The
impellers are held in place by right-hand threads. Incorrect
rotation of the motor could cause the impeller to unscrew and
jam against the casing liner, causing severe damage to the pump.
2. Driver and driven sheaves must be carefully lined up parallel
and square. On V-Belt applications, tension of the belts should be
adjusted periodically. It is very important belts be tensioned
properly per belt manufacturer’s recommendations. Under
tensioned belts will cause belts to slip and over tensioned belts
will put undue forces on shaft and bearings. Mount coupling or
belt guard before starting pump.
NOTE: SAFETY GUARDS ARE MAN DA TORY FOR
THIS EQUIP MENT. IT IS THE OWNER’S
RESPON SI BIL ITY TO PRO VIDE, AND/OR
ALTER AND MAIN TAIN THESE GUARDS IN
ACCOR DANCE WITH LOCAL SAFETY CODE
REG U LA TIONS.
3. Turn the shaft by hand to be sure that no solid material is
impeding the impeller from rotating. This is particularly
important if the pump has been idle with slurry in the casing.
Solids could settle so that the shaft could not be turned by hand,
and the casing would have to be opened to clear out the solids.
4. Turn on the sealing water supply to the stuffing box, per
instructions on page 2.
5. Slowly admit slurry into pump, and prime the unit by
flooding the entire casing.
6. If a valve is installed in the discharge line, it should be
closed as the initial load on the motor will be greatly reduced in
this way.
7. Start motor.
8. Open discharge valve slowly.
9. Check stuffing box to ensure there is a slight leakage of
clear water. The gland bolts should not be much more than
finger tight for proper operation.
10. Check sump to be sure suction pipe is well flooded with
slurry.
IMPELLER CLEARANCE
To obtain proper performance from the pump and increase parts
wear life, it is recommended that the clearance between the
impeller and suction side liner/wear plate be adjusted
periodically. For instructions on the method of adjusting
clearance, refer to individual instructions for dismantling and
reassembly—pages 6 thru 27.
MAINTENANCE TIMETABLE
EVERY MONTH
Check bearing temperature with a thermometer, not by hand. If
bearings are running hot, it may be the result of too much (or
too little) lubricant. If changing the lubricant does not correct
the condition, disassemble and inspect the bearings.
EVERY 3 MONTHS
Drain oil and flush oil reservoir and bearings. Refill to proper
level with recommended grade of lubricant (see page 2).
EVERY 6 MONTHS
Check the packing and replace if necessary. Use the packing
grade recommended.
Check shaft sleeve for scoring. Scoring accelerates packing
wear, so do not install new packing on scored sleeves.
Check alignment of pump. Shim up units if necessary. If
misalignment recurs frequently, inspect the entire piping
system. Unbolt piping at suction and discharge flanges to see if
it springs away, thereby indicating strain on the casing. Inspect
all piping supports for soundness and effective support of load.
EVERY YEAR
Remove the rotating element. Inspect thoroughly for wear, and
order replacement parts if necessary.
Remove any deposit or scaling. Clean out stuffing box piping.