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Procedure to release the chain brake using clutch drum and screwdriver.
Steps to remove brake band by removing cover, unscrewing, and relieving tension spring.
Guidance on replacing damaged brake band or tension spring. Caution for safety components.
Procedure for installing brake band, engaging spring, and using pulling hook.
Steps to remove hand guard by unscrewing nut and screw on cylinder and starter side.
Ensure compression spring is correctly installed when fitting the hand guard.
Procedure to remove clutch/drum by immobilizing cylinder and using piston stopper wedge.
Using specific spanners to unscrew the clutch. Note left-hand thread.
Details on different clutch designs for models 109, 110, 111, and 115.
Guidance on checking for worn sprockets or drums and replacing clutch springs.
Procedure for mounting clutch drum and clutch, including greasing bearing and tightening torque.
How to adjust oil pump delivery by turning a screw for less or more chain oil.
Steps to remove pump housing from crankcase and separate intake pipe from nipple.
Procedure to check oil pump for wear, including set screw, guide bush, and pump plunger.
How to remove intake pipe from oil reservoir by unscrewing chain guide plate.
Steps to clean intake pipe, including withdrawing oil filter and passing spring over pipe.
Procedure to withdraw worm using a tool screwed onto it, by tightening the screw.
Procedure to check spark plug function by connecting to terminal and pulling starter rope.
How to remove spark plug terminal by holding spring and passing rubber cap over cable.
Procedure for installing spark plug terminal by passing rubber cap over cable and engaging spring.
Steps to remove short-circuiting switch by removing filter hood, carburettor, bottom part, and unscrewing nut.
Procedure for installing short-circuiting switch, ensuring correct orientation and nut tightening.
Procedure to remove ignition armature by unscrewing cover and starting assembly.
Procedure to install ignition armature, secure with screws, and set air gap using gauge.
How to remove short-circuiting cable by removing carburettor and bottom part, ensuring cable is not caught.
Procedure to withdraw flywheel by unscrewing nut, screwing in punch, and striking.
Procedure for installing flywheel, ensuring cone is clean and tightening nut to specified torque.
Procedure to remove starter assembly by relieving return spring, withdrawing rope, and removing drum.
Steps to remove return spring by removing retaining ring, washer, handle, and rope drum.
Description of how a knot prevents the starter rope from being withdrawn from the rope drum.
Procedure to pretension return spring after fitting assembly, turning rope drum by 1/2 turn.
Procedure to replace starter ratchets as an assembly, pushing pin and applying locking agent.
Procedure to perform basic adjustment by screwing L and H jets, and adjusting idling speed screw (S).
Steps to remove carburettor by removing filter cover, hood, fuel pipe, and screws.
How to align control lever so its surface is parallel with the carburettor body.
Procedure to remove cover, diaphragm, seal, and screw on Tillotson carburettor control side.
Procedure to remove cover, diaphragm, seal, and screw on Walbro carburettor control side.
Steps to remove cover, seal, diaphragm, and fuel filter on Tillotson carburettor pump side.
Steps to remove cover, seal, diaphragm, and fuel filter on Walbro carburettor pump side.
Procedure to remove injection valve assembly from carburettor body, checking needle tip for wear.
How to remove the intermediate flange after the carburettor has been removed.
Procedure to remove air filter cover and auxiliary filter cover for cleaning.
Steps to remove cover assembly for cleaning air filter, involving lever screw and cover screws.
How to clean air filter by removing auxiliary filter and unscrewing main filter.
Steps to remove bottom part after carburettor removal, noting integrated plug and ventilation bore.
Instructions for removing and fitting handle by unscrewing tank screws and handling parts.
Procedure to replace vibration damper (KS) using specific tool for screws and dampers.
Steps to replace vibration damper (MS) by removing screws, including one under auxiliary filter.
Description of damping system design with three identical vibration dampers on tank housing.
Design of fourth vibration damper, pot, and catching band between supporting web and crankcase.
Procedure to remove and install fuel tank, requiring removal of vibration damper and fuel pipe.
How to replace ventilation valve from tank, requiring removal of carburettor and bottom part, using pliers.
Procedure to replace fuel pipe by withdrawing intake head and fuel pipe from tank, ensuring sealing.
How to separate intake head from fuel pipe, noting felt replacement.
Procedure to remove throttle lever and locking system by pushing pins and removing lever/spring.
Steps to remove cylinder by unscrewing attachment screws and lifting cylinder off housing/piston.
Procedure to replace piston rings by spreading rings at cap and removing piston.
Description of different cylinder designs: die cast for models 109/111 and Henkel for models 110/115.
Explanation of cylinder and piston marking (A, B, C) for precision-machined Henkel cylinders.
Procedure for installing cylinder, aligning parts, compressing rings with tension band, and sliding cylinder.
Procedure to replace radial sealing rings using a tool screwed into the ring and withdrawn by spindle.
Steps to dismantle crankcase and oil reservoir by removing seven attachment screws.
Procedure to remove crankcase by unscrewing attachment screws and separating halves with a hammer.
Description of crankcase division into magnet side (MS) and clutch side (KS) for assembly.
Procedure to assemble crankcase halves by inserting crankshaft, placing seal, and pressing halves together.
Using a tester to check the ignition system and spark plug.
Procedure for in-situ carburettor check by separating fuel pipe and fitting pressure tester.
Pressure-testing carburettor or crankcase is to be performed at max. 0.5 bar.
Instructions to use a torque wrench for tightening various screwed connections like cylinder base, crankcase, and flywheel.
Procedure for pressure-testing crankcase by blanking exhaust duct and screwing flange to inlet duct.
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