Wacker Neuson WM 90 User Manual

Theory of Operation WM 90
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The crankshaft is forged carbon steel, and the
crank pin is induction-hardened. The output
end of the shaft has a crankshaft gear that is
pressed into position.
The connecting rod is an aluminum alloy die-
casting and its large and small ends function
as bearings. The piston is an aluminum alloy
casting, and carries two compression rings
and one oil ring.
The piston rings are made of special cast iron.
The profile of the top ring and the second ring
are shown in the illustration. The oil ring is a
three-part ring designed for better sealing and
less oil consumption.
The camshaft is made of special cast iron, and
camshaft and gear are cast together in one
piece. Both sides of the shaft fit into the plain
bearings on the crankcase and main bearing
cover.
Component Illustration Component Description
wc_gr001872
wc_gr001873
wc_gr001874
a
b
c
wc_gr001875

Wacker Neuson WM 90 Specifications

General

Brand	Wacker Neuson
Model	WM 90
Category	Engine
Language	English