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Service bulletin 770

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10006857
Published by NHTSA2004-05-18
Manufacturer's number770
Manufacturer's date2004-01-06
NHTSA componentEQUIPMENT

NHTSA's summary

ON SOME ULTRAMOUNT STRAIGHT BLADE PLOWS WITH FLOSTAT HYDRAULIC SYSTEMS THE BLADE MAY ANGLE NOTICEABLY SLOWER TO THE LEFT THAN TO THE RIGHT. CAUSED BY THE POPPET SEAT BEING PRESSED IN THE VALVE MANIFOLD AT AN INCORRECT DEPTH. A POPPET SEAT TOOL CAN CORRECT THE PROBLEM. WESTERN PRODUCTS. *TT

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

Vehicles listed
UNKNOWN UNKNOWN1

Listing a model year does not mean every vehicle of it is concerned: the document says which.