STIHL 044, 044 C, 044 W, and 044 R Chainsaw 1128 Series 1990–2004 Service Manual (P/N 1128)

• Covers 1990–2004 STIHL 044 variants (044, 044 C, 044 W, and 044 R), including standard and catalytic converter exhaust configurations
• Official 158-page factory publication (P/N 1128) featuring 80+ exploded-view diagrams, 28 technical spec tables, and 14 electrical troubleshooting charts

Shop Manual Overview

This factory publication serves as the primary technical reference for the 1128-series build. It outlines the disassembly and reassembly of engine, cylinder, and piston components. The text specifically highlights the nuances of later catalytic converter exhaust systems. Mechanics will find extensive documentation on the fuel system, air filtration, and carburetor adjustments. The manual also maps out the ignition architecture, detailing breakerless magneto trigger units alongside their primary winding resistance limits (0.7–1.0 ohms).

Further chapters break down the chain drive mechanism, detailing sprocket removal, chain brake repair, and rewind starter overhauls. For heated-handle configurations, the text outlines the electric handle heating system, mapping out exact wire routing and component resistance values.

Specifications and Assembly Data

Comprehensive data tables keep engine, fuel, and ignition specifications highly accessible for quick bench reference. The crankshaft leakage test pressure, for instance, requires a strict 0.5 bar. Fuel mixture ratios are clearly defined at 50:1 using quality two-stroke engine oil.

To ensure exact assembly tolerances, the manual lists all required fastener tightening torques. Critical values include the 33 Nm (24.5 lb.ft) flywheel nut and the 50 Nm (37 lb.ft) clutch carrier. Power equipment maintenance involves inherent hazards; always consult a certified technician before performing service operations on these machines to ensure safe handling.