# 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.

- Type: Service bulletin
- NHTSA id: 10185143
- Published by NHTSA: 2021\-01\-06
- Manufacturer's number: SIL 777
- Manufacturer's date: 2020\-12\-10
- NHTSA component: ELECTRICAL 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185143-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10185143-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2007 ALTEC AT40M/P
- 2019 ALTEC LR760

JSON: [/v1/bulletins/10185143](/v1/bulletins/10185143)

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