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Procedure to release the chain brake using a screwdriver.
Steps to remove the brake band by relieving the tension spring.
Installing the brake band and engaging the tension spring with a pulling hook.
Steps for removing the hand guard by unscrewing specific parts.
Procedure for fitting the hand guard, ensuring correct spring installation.
How to remove the clutch/clutch drum by immobilizing the cylinder unit.
Using specific spanners to unscrew the clutch, noting the left-hand thread.
Highlights differences in clutch designs for models 109, 110, 111, and 115.
Inspection of worn sprockets or clutch drums and replacement of clutch springs.
Greasing the bearing and tightening the clutch to a specified torque during assembly.
How to adjust the oil pump delivery using a screw for chain oil flow.
Steps to remove the pump housing and intake pipe from the crankcase.
Inspection of the oil pump for wear, checking components like the plunger.
Procedure for removing the intake pipe from the oil reservoir.
Process for cleaning the intake pipe, including handling the oil filter.
Using a special tool to withdraw the worm from the crankshaft.
Instructions for checking spark plug function and cleaning/renewing defective plugs.
Procedure for removing and replacing the spark plug terminal and rubber cap.
Steps for installing the spark plug terminal, engaging the spring correctly.
How to remove the short-circuiting switch after disassembling other parts.
Procedure for installing the short-circuiting switch and securing it in the crankcase.
Steps to remove the ignition armature and flywheel.
Detailed steps for removing armature/flywheel and replacing ignition cable.
Procedure for installing the ignition armature and setting the air gap with a gauge.
Process for removing and replacing the short-circuiting cable.
Using a punch to remove the flywheel from the crankshaft.
Ensuring the crankshaft cone is clean and tightening the flywheel nut to a specific torque.
Steps to remove the starter assembly after relieving the return spring.
Procedure to remove the return spring, retaining ring, washer, and rope drum.
Description of how a knot secures the starter rope in the rope drum.
How to pretension the return spring after assembly.
Procedure for replacing starter ratchets, springs, and pins.
Basic and idling speed adjustment procedures for the carburettor.
Steps to remove the carburettor, including fuel pipe, linkage, and choke lever.
How to align the control lever parallel to the carburettor body.
Disassembly and identification of parts on the Tillotson carburettor control side.
Disassembly and identification of parts on the Walbro carburettor control side.
Procedure for removing cover, seal, diaphragm, and fuel filter on the pump side.
Steps for removing cover, seal, diaphragm, and fuel filter on the Walbro pump side.
Procedure for removing the injection valve assembly from the carburettor body.
How to remove the intermediate flange after the carburettor is detached.
Steps to remove the air filter cover for cleaning the air filter.
Procedure to remove the cover assembly for cleaning the air filter.
Instructions for cleaning the auxiliary and main air filters.
How to remove the bottom part of the assembly, noting integrated components.
Steps for removing and fitting the handle, detailing screws and dampers.
Procedure for replacing vibration dampers (KS) using a special tool.
Steps to replace vibration dampers (MS) by removing specific screws.
Description of the damping system design with three identical vibration dampers.
Description of the fourth vibration damper's location and components.
Procedure for removing and installing the fuel tank, including fuel pipe and seal.
Steps to replace the ventilation valve from the fuel tank.
Procedure for removing and installing the fuel pipe, ensuring proper sealing.
How to separate the intake head from the fuel pipe.
Steps for removing the throttle lever and locking system using cylindrical pins.
Procedure to remove the cylinder by unscrewing attachment screws.
How to spread piston rings and remove the piston.
Details on die cast and Henkel cylinder designs and their piston rings.
Explanation of identification markings (A, B, C) on precision-machined cylinders.
Procedure for installing the cylinder using a fork and tension band.
Using a tool to remove and replace radial sealing rings from the crankcase.
Steps to dismantle the crankcase and oil reservoir by removing screws.
Procedure to separate the crankcase halves using a plastic hammer.
Description of the crankcase division into magnet side (MS) and clutch side (KS).
Procedure for assembling the crankcase halves, inserting crankshaft and seal.
Using a tester to check the ignition system and spark plug.
In-situ checking of the carburettor using a pressure tester.
Pressure-testing the carburettor or crankcase at a maximum of 0.5 bar.
Importance of using a torque wrench for various screwed connections.
Pressure-testing the crankcase with cylinder by blanking off ducts.
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