STIHL TS 400 Cut-Off Machine 1998–2004 Service & Repair Manual (P/N 0455 338 0123

• Covers the STIHL TS 400 (4223) cut-off machine, including regional variants for the USA, Canada, and Japan.
• Original OEM publication 0455 338 0123 (April 1998) spanning 106 pages of technical data provided in PDF format.
• Features 56 exploded-view parts diagrams and a dedicated torque-specification table detailing 30+ critical tightening values.
• Details the diaphragm carburetor, rewind starter, centrifugal clutch, ignition module, AV handle system, decompression valve, and rotary shaft seals.
• Covers the throttle control, impulse hose, tank vent, pick-up body, flywheel, V-belt pulley, and special tools.

Component and Assembly Documentation

This 1998–2004 reference provides the foundational repair data and troubleshooting procedures needed for professional diagnostics. It serves as the definitive guide for the 4223-series cut-off machine, outlining the full engine, transmission, and water-attachment assemblies. The content progresses logically from engine-core diagnostics to the specialized ignition and fuel-delivery systems. Having these exact factory runout tolerances and pressure testing parameters directly on your workbench provides a clear advantage for daily shop routines. It eliminates trial-and-error diagnostics and prevents unnecessary parts-swapping, saving both time and money.

You get the exact specifications required for repairing the engine core, covering cylinder removal, piston service, and crankshaft housing maintenance. Chapters dedicated to the cutting-wheel drive, V-belt pulley mechanism, and vibration-damping handle system are thoroughly cataloged. The manual outlines step-by-step procedures that typically require a costly trip to the dealer, such as tensioning the rewind spring, conducting positive and negative crankcase leakage testing, and pulling rotary shaft seals without splitting the engine case. To further support these overhauls, the text integrates wiring schematics, axial runout test sequence tables, special tool charts, carburetor exploded views, water attachment drawings, and leakage testing views. Additionally, it outlines precise configurations for air filter maintenance, carburetor adjustments, and tank vents to ensure the equipment continues to meet strict factory standards.

Specification Highlights

Technical data within this manual focuses heavily on component identification and precision assembly. Engine power output is documented at 3.2 kW at the specified testing range. For crankcase diagnostics, leakage testing requires an excess or negative pressure of 0.5 bar. You will find exact tuning details, such as setting the high-speed adjusting screw H at approximately one turn open. When securing the flywheel nut, the assembly data dictates a tightening torque of 30 Nm. The standard fuel-to-oil mixing ratio is outlined at 1:50 for OEM oil, or 1:25 for other brands.

Please note that this document is intended for reference purposes. Always consult a certified technician before initiating any major mechanical work, as these specialized power tools require precise handling and setup to ensure safe operation.