5 Maintenance
NOTE! Study the maintenance instructions carefully before replacing worn parts. - See section 5.1 General maintenance
Shaft seal
Rubber seals Motor bearings
Preventive maintenance Replace after 12 months:
(one-shift) Complete shaft seal
Replace when replacing the
shaft seal
Maintenance after leakage
(leakage normally starts slowly)
Replace at the end of the
day: Complete shaft seal
Replace when replacing the
shaft seal
Planned mainten
ance
- Regular inspect
ion for
leakage and smoo
th
operation
- Keep a record of t
he pump
- Use the statist
ics for
planning of ins
pections
Replace after leakage:
Complete shaft seal
Replace when rep
lacing the
shaft seal
Yearly inspecti
on is
recommended
- Replace complete bearing
if worn
- Ensure that the bearing is
axially locked (See motor
instructions)
Lubrication Before fitting
Lubricate the O
-rings with
silicone grease or silicone oil
Before fitting
Silicone greas
e or silicone oil
See section 6.2 Relubrication
intervals
Pre-use check
CAUTION!
Fit the electrical connections correctly if they have been removed from the motor during service. (See 3.3 Pre-use check -
pump without/with impeller screw).
Pay special attention to warnings!
1. Start and stop the motor momentarily
2. Ensure that the pump operates smoothly.
5.2 Cleaning
Procedure
Cleaning procedure for Soiled Impeller Screw Tapped Hole:
1. Remove stub shaft (9) per section 5.3 of Service manual.
2. Submerge and soak Stub Shaft for 5 minutes in COP tank with 2% caustic wash
3. Scrub the blind tapped impeller screw hole vigorously by plunging a clean 1/2” diameter sanitary bristle pipe brush in and out
of the hole for two minutes while submerged.
4. Soak Stub Shaft (9) in acid sanitizer for 5 minutes, then scrub blind tapped hole as described in step 3 above.
5. Rinse well with clean water and blow-dry blind tapped hole with clean air.
6. Swab test the inside of the tapped hole to determine cleanliness.
7. Should the swab test fail, repeat steps 2 thru 6 above until swab test is passed.
Should swab te
sting continue to fail, or time is of the essence, install a new (spare) Stub Shaft (9).
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