The STIHL 026 chainsaw is a professional-grade gasoline-powered chainsaw known for its reliability and performance. This parts manual provides detailed diagrams, part numbers, and ordering information for the complete assembly and maintenance of the STIHL 026 model. Below are key sections covering safety, identification, major assemblies, engine components, fuel system, ignition system, cutting equipment, and troubleshooting.
Before handling, disassembling, or ordering parts for your STIHL 026 chainsaw, read all safety instructions. Use only genuine STIHL replacement parts to ensure proper function and safety.
| Warning Symbol | Meaning |
|---|---|
| ⚠️ | General warning - risk of personal injury |
| 🔥 | Fire hazard - fuel and oil are flammable |
| ⚡ | Electrical hazard - ignition system components |
| 🛑 | Stop! Disconnect spark plug before service |
| 🔧 | Use proper tools for disassembly/reassembly |
WARNING! Always wear protective gloves and eyewear. Ensure the engine is cool and the spark plug boot is disconnected before beginning any work.
Identify your saw using the serial number plate on the rear handle or crankcase. The STIHL 026 was produced in several versions (e.g., 026, 026 WB, 026 Q).
Exploded diagrams are organized by major assemblies for easier part identification.
Note: Refer to the specific exploded view diagram for each group when ordering parts.
Critical internal parts for engine overhaul and repair.
| Part Number | Description | Qty |
|---|---|---|
| 1122 030 2001 | Cylinder (026) | 1 |
| 1122 030 2003 | Piston (complete with rings & pin) | 1 |
| 1122 040 1800 | Crankshaft Assembly | 1 |
| 1122 007 1000 | Connecting Rod | 1 |
| 1122 007 1010 | Main Bearing (Flywheel Side) | 1 |
| 1122 007 1011 | Main Bearing (Clutch Side) | 1 |
| 1122 007 1020 | Crankcase Seal Kit | 1 set |
CAUTION! Engine components require precise assembly. Use a torque wrench and follow specified tightening sequences.
Parts for the fuel tank, carburetor, and associated lines.
Tip: Always replace fuel lines and filters during carburetor service to prevent future issues.
Components for spark generation and engine stop circuit.
WARNING! Test for spark with the plug grounded to the cylinder. Never test by holding the plug wire.
Parts for the guide bar, saw chain, and drive sprocket.
| Component | STIHL Part Number Example | Specification |
|---|---|---|
| Guide Bar (16") | 3003 000 3916 | .325" pitch, .063" gauge, 56 DL |
| Saw Chain (16") | 3623 005 0067 | 3/8" LP, .063", 56 Drive Links |
| Rim Sprocket | 1122 007 1041 | .325" pitch, 7-tooth |
| Clutch Drum | 1122 640 2000 | With bearing |
| Chain Tensioner | 1122 160 2600 | Includes screw and worm gear |
| Bar Nut | 1122 007 1030 | M8 |
Note: Chain length (Drive Links) must match the guide bar. Always use a sharp chain with proper tension.
Parts to maintain clean intake air and proper engine cooling.
CAUTION! A clogged air filter or spark arrestor can cause overheating and engine damage.
Parts for the recoil starter mechanism.
Tip: Wind the rewind spring carefully during assembly. Wear gloves to prevent injury from the spring.
Use the official STIHL IPL (Illustrated Parts List) for accurate diagrams. Provide your dealer with the saw's serial number and the part number from this manual.
Ordering Steps:
Online Resources: Some dealers offer online parts lookup. Visit www.stihlusa.com to find a dealer.
Common issues and the parts often involved.
| Problem | Possible Cause | Parts to Check/Replace |
|---|---|---|
| Engine won't start | No spark, no fuel | Spark plug, ignition coil, fuel filter, carburetor kit |
| Engine runs poorly | Clogged filter, bad fuel line | Air filter, fuel filter, fuel line, carburetor diaphragm |
| Loss of power | Compression loss, clogged muffler | Piston & rings, cylinder, spark arrestor screen |
| Chain won't turn | Worn sprocket, clutch issues | Clutch shoes, rim sprocket, clutch drum bearing |
| Oil not feeding | Clogged oil passages | Oil pump, oil lines, bar oil hole |
Regular Maintenance: Clean air filter, check spark plug, sharpen chain, clean cooling fins, and use fresh fuel mix.
Service Support: Contact an authorized STIHL servicing dealer. For dealer locator: 1-800-467-8445 or www.stihlusa.com.