TECHNICAL SERVICE BULLETIN

This Technical Service Bulletin concerns changes to the LPA3 requiring action by our branches and service centres.
2 separate potential issues with LPA3 internals have been identified. Neither issue is urgent. Neither issue requires
pro-active customer communication. No product recall is required.
Details
The designs of new LPA3s have been modified to avoid two potential failure routes. Branches and services centres
will be requested to retro fit a new part to units being returned for calibration and service, in order to avoid the very
small chance of customer issues.
1) The arm holding the LPA3 pump body may under some circumstances fail causing the pump to work loose. A
new design reduces this chance.
This potentially affects all LPA3 units manufactured before June 2022.
2) N version LPA3 units manufactured before June 2022 may experience excess wear in the pressure reducing valve
(PRV).

 The new design uses a material better able to resist the water induced corrosion and erosion.
 

Affected Units
Change 1: all LPA3 units manufactured before June 2022
Change 2: only N version LPA3 units manufactured before June 2022. This change does not impact M and S versions
of the LPA3, nor any other CMP products.
Actions Required
Change 1
1. MP UK will free issue replacement pump modules to branches and service centres
2. These should be used to replace existing pump modules when units are returned for service or calibration.
3. Customers should not be charged for this work, but should be informed
The Pump Modules are part no. 61.008000 (M/N version), or 61.009000(S version):
Units that have an 'R' stamped on the motor bracket already have the new design and do not need updating