Stihl KM HT Instruction Manual - Page 23

English NOTICE Always slacken off the chain after finishing work. The chain contracts as it cools down. If it is not slackened off, it can damage the gear shaft and bearings. Storing for a long period See chapter on "Storing the Machine" Storing the Machine For periods of 3 months or longer N Remove the saw chain and guide bar, clean them and spray with corrosion inhibiting oil. N If you use a biological chain and bar lubricant, e.g. STIHL BioPlus, completely fill the chain oil tank. N If the KombiTool is removed from the KombiEngine and stored separately: Fit the protective cap on the drive tube to avoid dirt getting into the coupling. N Store the machine in a dry, high or locked location - out of the reach of children and other unauthorized persons. Taking Care of the Guide Bar 2 1 3 246BA028 KN N Turn the bar over every time you sharpen the chain and every time you replace the chain - this helps avoid one-sided wear, especially at the nose and underside of the bar. N Regularly clean the oil inlet hole (1), the oilway (2) and the bar groove (3). N Measure the groove depth - with the scale on the filing gauge (special accessory) - in the area used most for cutting. Chain type Chain pitch Picco 1/4" P Minimum groove depth 4.0 mm (0.16 in) If groove depth is less than specified: N Replace the guide bar. HT-KM 21