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Service bulletin SIL 777

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10185143
Published by NHTSA2021-01-06
Manufacturer's numberSIL 777
Manufacturer's date2020-12-10
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

Altec has discovered that the fuse for the main contactor in the L JEMS system on the affected units can be undersized. A 250 amp fuse may have been installed instead of the required 400 amp fuse. This can cause repeated blowing of the fuse and resulting loss of power. Altec has created a service kit to replace the fuse and connecting cable. This will prevent improper blowing of the fuse and ensure that the cable is properly sized. Altec requires that the kit be installed no later than the next regular maintenance interval.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories

Vehicles listed
ALTEC AT40M/P2007
ALTEC LR7602019

Listing a model year does not mean every vehicle of it is concerned: the document says which.