Altec Industries, Inc.
Midwest Operations
St. Joseph, MO.

CSR 513

Component/Supplier Recall
April 30, 2021
Units Affected: DC1317 and DRM12 chippers equipped with an Engine Power Source (EPS)
MVP Controller (Verify that your unit serial number is affected by reviewing the attached list in this CSR
or by accessing your fleet on connect.altec.com/login)

Bulletin EPS2020-E-0002 — MVP Memory Loss
Altec is committed to providing our customers reliable products from initial delivery throughout
the useful life of the machine.
EPS has launched a technical bulletin for MVP controllers with potential memory loss. These
controllers have a display on the DC1317 and DRM12 chippers (refer to Figure 1). Affected
units have the potential for the display to go blank due to a voltage drop during the boot-up cycle.
This can be fixed by reloading the firmware and configuration files. Please refer to the attached
communication from EPS.

Figure 1 — Display
No action is required unless you are experiencing issues. If so, contact the EPS Technical
Support Group using the contact information in their attached communication.
Altec is not able to complete this repair. This repair is not covered under the Altec Warranty
policy.
Inspection labor
Repair labor
Account #
Travel
NHTSA code
Prime fail P/N
Doc ref

Altec Use Only
0.0 hr
0.0 hr
None
Not Included
n/a
990466181
n/a

Parts Kit
N/A

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Part Number Qty Warranty
N/A
N/A

Technical
Bulletin
348 Bryant Road, Rock Hill, SC 29732
800-374-7522 x1871
[email protected]
Bulletin #
EPS2020-E-0002
Subject:
MVP Memory Loss

Effective Date:
January 24, 2020
Products Affected:
Kubota CR Diesel & WG Engines

During January of 2020, customers began reporting to EPS that several MVP controllers had lost their
programming. EPS collected and returned several problematic controllers to the manufacturer for
analysis.
The manufacturer discovered that the program loss was caused by a significant voltage drop to the
controller’s microprocessor at a very specific time during the controller’s boot‐up cycle. In discussing the
operating conditions with customers, EPS learned this voltage drop was being created most frequently by:
• Poor connections between the MVP controller and the wire harness due to dielectric grease
being applied to controller’s connectors;
• “Rush starting” the engine (i.e. turning from OFF directly to START) before the controller has
completed booting up.
Any controller which had such issues was easily restored to full, normal operation simply by reloading
both the firmware and configuration files. EPS has worked with the manufacturer and developed two
solutions to the issue:
SHORT TERM
EPS has changed the variable used to display battery voltage from several possible available values to a
specific internal value. This prevents the controller from searching while booting up to “select this value”
from those available (which caused the program loss during voltage dips).
LONG TERM
The manufacturer will change some of their system architecture to modify how the MVP stores its
programming. This will allow the MVP to “recover” much easier from a voltage dip during booting.
Should you discover an MVP controller that is not operating as expected, please contact our Technical
Support Group for assistance.

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MVP Memory Loss

01-24-2020