# Service bulletin SIL 622

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: 10076213
- Published by NHTSA: 2016\-07\-07
- Manufacturer's number: SIL 622
- Manufacturer's date: 2015\-11\-17
- NHTSA component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

## NHTSA's summary

Altec Industries, Inc. has developed a product improvement which relates to certain AM50/55/ AM60\-E, LR7, L42/44E and L42/45M/P Units. Altec has received some reports of upper boom drifting on some of the above listed units. Investigation found the cause to be contamination trapped in the bottom upper boom drive cylinder by\-pass valve. Depending on the position of the booms, the upper boom on units with this condition can drift down

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Equipment and accessories, Labels and manuals

## Vehicles listed

- ALTEC DC1317 WOOD CHIPPER

JSON: [/v1/bulletins/10076213](/v1/bulletins/10076213)

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