Stihl MS192T Parts Manual

The Stihl MS192T is a lightweight, top-handled chainsaw designed for arborists and professional tree care. This parts manual provides detailed diagrams, part numbers, and ordering information for all components of the MS192T chainsaw, including the engine, fuel system, ignition, cutting attachment, anti-vibration system, and housing. Below are key sections for identification, engine parts, fuel system, cutting equipment, assembly instructions, and ordering.

Identification and Specifications

Key identifiers: Model MS192T, Engine displacement, Power output, Weight, Recommended guide bar length.

Engine Assembly Parts

Cylinder, piston, crankshaft, connecting rod, bearings, seals, and gaskets.

1. Cylinder Assembly: Includes cylinder, decompression valve, and cylinder bolts.
2. Piston Assembly: Piston, piston rings, wrist pin, and circlips.
3. Crankshaft Assembly: Crankshaft, main bearings, and oil seals.
4. Crankcase: Upper and lower halves with gasket.

WARNING! Use only genuine Stihl parts for engine assembly to ensure proper fit and performance. Incorrect parts can cause engine failure or safety hazards.

Fuel System and Carburetor

Fuel tank, fuel filter, fuel lines, carburetor (Zama C1Q-S series), and adjustment screws.

1. Fuel Tank: Includes tank, cap, and vent.
2. Fuel Lines: Supply and return lines with clamps.
3. Carburetor: Complete assembly with gaskets, diaphragms, and metering lever.
4. Air Filter: Pre-cleaner and main filter element.

CAUTION! Ensure fuel lines are routed correctly and securely clamped to prevent leaks and engine damage.

Ignition System

• Ignition Module: Electronic control unit with spark advance.
• Spark Plug: Bosch WSR6F or equivalent, electrode gap 0.5 mm (0.020 in).
• Stop Switch: Wire harness and switch assembly.
• Flywheel: Magneto and fan assembly with keyway.
• Lead and Boot: High-tension lead and spark plug boot.

Cutting Attachment and Guide Bar

Guide bar, saw chain, sprocket, clutch, and chain tensioner.

Guide Bar: Roller nose or solid nose, various lengths. Saw Chain: 1/4" PM or .325" pitch, safety chain options. Sprocket: Rim sprocket or spur sprocket. Clutch: Centrifugal clutch assembly with springs and shoes. Chain Tensioner: Screw adjustment with pin and worm gear.

Anti-Vibration System

Front and rear AV mounts, springs, and buffers.

1. Turn off saw and allow to cool before servicing AV system.
2. Inspect mounts for cracks or deterioration.
3. Replace in sets to maintain balance and vibration damping.

Tip: Worn AV mounts increase operator fatigue and can lead to handlebar damage.

Housing and Covers

Plastic housing components, covers, and handles.

1. Main Housing: Includes engine cover, air filter cover, and clutch cover.
2. Handle Assembly: Top handle with throttle trigger, lockout, and choke lever.
3. Debris Shield: Underneath cover to protect carburetor and cylinder.
4. Label Kit: Warning and model identification labels.

WARNING! Ensure all covers are securely fastened before operation. Missing covers expose moving parts and create safety risks.

Fasteners and Hardware

Screws, nuts, washers, and clips specific to MS192T assembly.

Assembly and Installation Notes

Torque specifications, lubrication points, and alignment procedures.

CAUTION! Refer to service manual for detailed assembly instructions. Incorrect torque can strip threads or cause component failure.

Parts Ordering Information

Use genuine Stihl parts with correct part numbers. Contact authorized Stihl dealers or visit www.stihlusa.com. Include model number and serial number when ordering.

Exploded Diagrams

Note: Diagrams show part numbers and assembly relationships.

Support: For technical assistance, contact Stihl Inc. at 1-800-467-8445 or visit www.stihlusa.com.