5. Maintenance and inspection
IOM manual
–
SF & SFA series
25
NOTICE:
➢
The drained oil must be disposed according
to national and local regulations.
➢
The gasket and the O-ring for the oil filler
plug must be replaced with a new part at
each oil inspection and change.
Model
Oil volume
SF
165 ml
SFA
165 ml
5.5.
Disassembly and reassembly procedure
DANGER:
Disconnect and lock out electrical power before installing or servicing the unit
WARNING:
Make sure to perform a trial operation when starting the pump after a reassembly
.
If the
pump was assembled improperly, it may leakage abnormal operation or electrical shock
.
CAUTION:
Wear protective gloves. A worn impeller and/or pump housing can have very sharp edges.
5.5.1.
SF disassembly procedure
NOTICE:
➢
Before disassembling, make sure to drain the oil from the pump.
➢
Mechanical seal should be replaced only when broken or worn (see chapter
5.4.
Oil inspection and change
).
1. Strainer [2] disassembly
Remove the screw [1] to remove the strainer [2].
2. Pump casing [5] disassembly
Remove the screw [3] and spring washer [4] to remove the pump cover [5] and the gasket
[6].
3. Impeller [10] disassembly
Remove agitator [7], spring washer [8], and washer [9]; then remove the impeller [10],
impeller adjusting shim [11], sand guard [12] and shaft sleeve [13].
4. Back casing [21] and mechanical seal [24] disassembly
After removing the screw [20], remove the back casing [21] (when doing this, be careful
not to damage sealing face of the mechanical seal [24]) and casing O-ring [22]. Remove
the mechanical seal from the main shaft.
NOTICE:
Mechanical seal replacement must be handled by the qualified staff, contact Tapflo
for more information.
