# Service bulletin SIL 795

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: 10191599
- Published by NHTSA: 2021\-05\-04
- Manufacturer's number: SIL 795
- Manufacturer's date: 2021\-04\-09
- NHTSA component: STRUCTURE

## NHTSA's summary

Some customers have reported cracks occurring in the stationary frame tubes above the chassis frame rails of some HD35A pressure diggers built from 2005 through 2020. Investigation has shown this to be caused by improper orientation of the spacer blocks welded to the bottom of the stationary frame tubes. Altec requires the stationary frame on each unit to be inspected no later than the next preventive maintenance interval. If the inspection shows that the spacer blocks are oriented incorrectly, the unit must be repaired no later than 30 days after the inspection using the Repair Procedure provided in the notification.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191599-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191599-9999.pdf)

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

## Components

Body and frame

## Vehicles listed

- 2005 to 2020 ALTEC DIGGER DERRICK

JSON: [/v1/bulletins/10191599](/v1/bulletins/10191599)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20SIL%20795&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10191599&vehicle=Service%20bulletin%20SIL%20795)