Technical Service Bulletin SIL 783 — 2005 ALTEC AERIAL DEVICE
STRUCTURE
Bulletin Details
| TSB ID | SIL 783 |
| Manufacturer | |
| Vehicle | 2005 ALTEC AERIAL DEVICE |
| Component | STRUCTURE |
| Communication Date |
Bulletin Summary
Structural cracking has been observed where the primary leveling cylinder mounting pin is welded to the lower boom side plate on LS 40/45/55 aerial devices. Failure of this connection could disable the hydraulic platform leveling system. Altec has developed a kit to reduce the relief pressure of the hydraulic leveling circuit. This will prevent damage to the leveling cylinder mounting pin weld joint by reducing the weld stress. Altec has also developed a kit to repair the lower boom if the side plate has cracked. Altec requires the inspection and repair be completed on the affected units by the next annual preventive maintenance interval or within one year of receipt of the SIL.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.