STIHL 024 & 026 Chainsaw Service Manual

This service manual contains detailed descriptions of all the repair and servicing procedures specific to this power tool series. Reference is made to these handbooks in the appropriate chapters of this manual.

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Document Details

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Document Number / Seller:
30195 / Matthew Lee
File Size:
6.32 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Chainsaw
Last updated / verified
May 11, 2025

Models Covered & Key Technical Specifications

STIHL 024 & 026 Chainsaw (Part Number: 1121-791-7300) - Comprehensive Maintenance Guide Parts-Reference

STIHL 024/026 Crankcase Repository | STIHL Chainsaw

  • Nominal Coupling Torques: 3.0 Nm is specified as the torque for the pan head screw, securing the cover plate and chain tensioner Components.
  • Prescribed Twist Specifications: For optimal operation, 2.5 Nm is configured at the torque for the countersunk screw, securing the cover plate and chain sprocket cover.
  • System Calibrated Holding Capacity: 23.0 Nm -- signifies the torque for the collar screw, for bar mounting.
  • Calibrated Load Capacity: The collar screw requires 30.0 Nm for bar mounting.
  • Documented Cycle Rate: The IS-M4x12 spline screw requires 3.0 Nm for the cover to crankcase.
  • Defined Torque Data: For the M10x1 screw, 14.0 Nm is specified as the torque for the decompression valve.

Professional Workshop Service Manual & Technical Specifications

STIHL 024 & 026 Chainsaw Service Manual: STIHL 024 & 026 Chainsaws (1999) - Comprehensive Maintenance Guide Parts-Reference

Conceptual-Layout: STIHL 024, 026 (1999) // Subsystem-Focus: Chainsaw / Engine Logic // Conceptual-Layout: Comprehensive repair and maintenance data.

Service-Nexus Diagnostic-Logic Context
Ignition System 6.1 Spark Plug Boot/Ignition Lead 33 Nm
Engine 5.1 Muffler/Spark Arresting Screen 10 Nm
Clutch, Chain Drive, Chain Brake and Chain Tensioner 4.3 Chain Brake 4.0 Nm
Fuel System 12.5 Carburetor 0.8 bar
Ignition System 6.2 Ignition Module 7.0 Nm
Engine 5.3 Leakage Test 0.5 bar

Major sections focus on:

Introduction

The documentation addresses the overall design concept of the 024 and 026 chainsaws, noting that descriptions and servicing procedures generally apply to both, with differences described in detail. Assembly stand requirements and the importance of using original STIHL replacement parts are also highlighted.

Engine

Assembly instructions are detailed for the muffler, spark arresting screen, and catalytic converter, including construction and function. Procedures for leakage tests, oil seals, the cylinder, and piston are covered.

Ignition System

Hydraulic schematics are included for the ignition system, covering the spark plug, ignition module, and flywheel. Troubleshooting for the ignition system is also provided.

Chain Lubrication

Steering component information is provided for the oil pump, pickup body, and suction hose, detailing servicing procedures for the valve.

Fuel System

Inspection guidelines are provided for the fuel system, including the air filter, choke shutter, and carburetor preheating. Carburetor testing and adjustment procedures are also documented.

documents torque specifications for component alignment retention to ensure proper component alignment retention.

FAQ

Specify the **applicable** lubrication requirements for the rewind starter and starter post. keyboard_arrow_down

STIHL special lubricant, as detailed in section 13.2, is required for the rewind spring and starter post to ensure proper function.

What is the **exact** testing parameters for the ignition module and flywheel? keyboard_arrow_down

Accurate testing of the ignition module requires special test equipment, but a spark test is possible, showing a reading of 7.0 Nm (5.2 lbf.ft) for the mounting screws.

Calculate the **specific** diagnostic procedures for the heating elements and wiring. keyboard_arrow_down

A resistance check using an ohmmeter on the heating elements and wiring is necessary, with values ranging from 3.5 to 4 Ω or 0.9 to 1.1 Ω for the generator connection and engine ground.

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Reviews (2)

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This manual is a must-have for anyone with a STIHL 024 or 026. The step-by-step instructions are clear and detailed, making maintenance a breeze! Downloading was quick and easy, and customer support was very responsive when I had a question. Highly recommend!
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I found this manual incredibly helpful for servicing my chainsaw. The illustrations really aid in understanding the processes. The download link was sent promptly to my email, and their support team was very professional and helpful. A great purchase!