Finish Thompson SP11/15 SERIES SELF-PRIMING - Manual (Page 10)

Section IV - Shutdown
• Turn off the motor.
NOTE: When the pump is stopped without a check valve in the piping, liquid will flow through the pump returning
to the suction source. The SP design allows enough liquid to be retained in the housing to allow repriming without
having to refill with liquid.
Flush Systems
CAUTION: Some fluids react with water; use compatible flushing fluid.
1. Turn off the pump.
2. Completely close the suction and discharge valves.
3. Connect flushing fluid supply to flush inlet valve.
4. Connect flushing fluid drain to flush drain valve.
5. Open flushing inlet and outlet valves. Flush system until the pump is clean.
NOTE: The drain can be used as the flushing drain valve using appropriate customer supplied fittings. Using the
drain helps to promote superior flushing and draining results.
Maintenance
Recommended maintenance schedule
The recommended maintenance schedule depends upon the nature of the fluid being pumped and the specific applica-
tion. If the pump is used on a clean fluid, it is recommended that the pump be removed from service and examined
after six months of operation or after 2,000 hours of operation. If the pump is used on fluids with solids, high tempera-
tures or other conditions that could cause accelerated wear this initial examination should be sooner.
After the initial examination of the internal components, and wear items are measured, a specific maintenance sched-
ule can be determined. For best results, the pump should be removed from service annually for examination.
Section V - Disassembly
Tools Required: Metric socket or wrench set, 9/16” socket or wrench, 8 mm Allen wrench, and 3/16” Allen wrench
(NEMA motors only), and pliers (for fill/drain plugs).
WARNING
: Rotating Parts. This pump has components that rotate while in operation. Follow local safety stan-
dards for locking out the motor from the power supply during maintenance or service.
WARNING
: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemi-
cals. Always wear protective clothing, eye protection and follow standard safety procedures when handling corrosive
or personally harmful materials. Proper procedures should be followed for draining and decontaminating the pump
before disassembly and inspection of the pump. There may be small quantities of chemicals present during inspection.
WARNING:
Magnetic force hazard. This pump should only be disassembled and assembled using the recom-
mended procedures. The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end to-
gether. Do not place fingers between the mating surfaces of the motor and wet ends to avoid injuries. Keep the drive
magnet and impeller assembly away from metal chips or particles.
1. Stop the pump, lock out the motor starter, close all the valves that are connected to the pump, and drain/decon-
taminate the pump.
WARNING:
The pump must be thoroughly flushed of any hazardous materials and all internal pressure relieved
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