Technical Service Bulletin SIL 808 — 2020 ALTEC PRESSURE DIGGER
POWER TRAIN
Bulletin Details
| TSB ID | SIL 808 |
| Manufacturer | |
| Vehicle | 2020 ALTEC PRESSURE DIGGER |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
Altec has learned that supplier-provided auger transmission gearboxes for the HD35A derricks built from May 2020 to January 2021 have an oversized square-drive opening for the kelly bar in the output drive sleeve. This results in an improper fit with the kelly bar, which can lead to excessive wear on the lower packing seals and premature hydraulic oil leakage. Altec requires that the output drive sleeve be replaced no later than the next preventive maintenance interval. This repair is covered under the Altec Warranty Policy and must be performed at an Altec facility
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.