Finish Thompson SP10 SERIES SELF-PRIMING - Manual (Page 9)

9
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 temperatures
or other items 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 schedule
can be determined. For best results, it is recommended that
the pump be removed from service annually for examination.
Section V - Disassembly
Tools Required:
Metric socket or wrench set, 13mm socket or wrench,
3/16” Allen Wrench (NEMA motors only), pliers (for fill/
drain plugs), and (2) Flat Head screwdrivers.
WARNING
: Rotating Parts. This pump has compo-
nents that rotate while in operation. Follow local safety
standards 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 chem-
icals. Always wear protective clothing, eye protection,
and follow standard safety procedures when handling
corrosive or personally harmful materials. Proper Pro-
cedures should be followed for draining and decontam-
inating 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 power-
ful enough to rapidly pull the motor end and the wet
end together. 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 re-
lieved prior to opening the pump. Allow the pump to
reach ambient temperatures prior to performing
maintenance.
2. Securely clamp the motor to the bench. Remove the
(4) 3/8” motor adapter bolts, lock washers and flat
washers (items 28, 29 & 30) securing the pump to the
motor. See figure 10.
Figure 10
3. Firmly grab the pump and pull straight back to disen-
gage the motor and pump.
4. Place pump on bench with housing (item 1) facing up.
Using a 13mm socket or wrench, remove (6) 8M hous-
ing bolts, lock washers and flat washers (items 19, 20
& 21). See figure 11.
Figure 11
5. Remove the housing by carefully inserting two flat
head screwdrivers at the locations shown in figure
12. Slide the screwdrivers in at the bolt holes between
the metal clamp ring (item 13) and the housing until
they stop. Applying equal pressure, gently pry both
screwdrivers in an upward motion away from the work
bench (to avoid damaging sealing surface on the hous-
ing). See figure 12A. Housing is tight due to o-ring
seal on the internal “gooseneck.” NOTE: Do not twist
the screwdrivers or damage may occur to the housing.
Lift the housing straight up to remove.