Service bulletin SIL-3052
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 | 10235128 |
| Published by NHTSA | 2023-04-28 |
| Manufacturer's number | SIL-3052 |
| Manufacturer's date | 2023-04-28 |
| NHTSA component | EQUIPMENT |
NHTSA's summary
Altec has learned that the hydraulic ball valve on the hydraulic reservoir return line of certain L42/45 M/P units built from February 2002 to November 2019 might not get returned to the open position after being turned to the closed position for maintenance. If the upper boom drive system is articulated while the ball valve is in the closed position, both upper boom drive cylinders could retract simultaneously causing the lower boom to buckle. The customer should order and install the Hydraulic Shutoff Valve Placard Kit. The kit must be installed by the next preventative maintenance interval, or within 90 days of receipt of this notice, whichever comes first.
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
Equipment and accessories
| ALTEC AERIAL DEVICE | 2002 to 2019 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.