7
Non-Functioning or Poorly Functioning SBE 5M or SBE 5P
Perform the inspection procedures listed above in Yearly Maintenance for SBE 5M or SBE 5P. If you do not discover
the problem there, proceed as follows.
1. Unscrew the pump head from the housing.
2. Pull out the end cap from the housing.
3. Pull out the electronics from the housing. Note that the electronics are wired to the bulkhead connector inside the
housing.
4. Verify that the magnet can spin freely and is not broken or damaged.
5. Look for other signs of damage on the electronics.
6. Reinstall the end cap in the housing:
A. Apply a light coat of o-ring lubricant (Parker Super O Lube) to the o-ring and mating surfaces.
B. SBE 5M – Gently place a new desiccant capsule (PN 31044 – 0.4 gram) on the electronics, and replace the
black tape to secure it in place.
SBE 5P - Gently place a new desiccant bag (PN 30558 – 1 gram) on the electronics.
(see Application Note 71 for desiccant use and regeneration).
C. Reinstall the electronics in the housing.
D. Reinstall the end cap in the housing, carefully aligning the end cap with the housing and pushing hard on the
end cap to seat the first o-ring in the housing (only 1 o-ring should now be visible).
CAUTION: If you are not careful, you may pinch the o-ring, which may allow water to enter the
housing, damaging the electronics.
7. Reinstall the pump head on the end cap.
SBE 5P with Electronics Removed
SBE 5M with Electronics Removed (titanium version shown; plastic version similar
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