Question about Stihl Hs 81, 86 R, Rc, T, Tc Trimmer Parts Manual
The engine runs ok but the cutter bar does not move back and forward. I suspect that the drive gear has sheared off the drum.
Hi all, I see a few people are in need of this question been resolved so heres the answer.
1st, of all you need to take off the gear box plate using a torx 27 tool to remove the 6 torx bolts.
2nd, you will need to remove the internal spur gear and connecting rods possible the full blade.
3rd, remove the external circlip that holds the drive pinion gear in place.
4th, you will need to remove the air filter cover
5th, next is the 3 torx bolts holding the gearbox casing to the engine 1 is at the back wich can be accessed through the ring that covers the rear anti vibration springs. the other 2 are either side of the casing sunk down a little bit. hopefully these can be easily located.
6th, next is the pull start housing/ top casing.
7th, at this point you should be able to carefully lift the engine out of the lower casing and get access to the clutch drum.
8th from the gear box side carefully tap the drive gear out of the bearing.
9th, give the gear box a good clean out to remove any old oil and any metal filings that may be hanging around.
finally re fitting is pretty much the reversal of this step by step although 1 thing to take into consideration is when putting the new clutch drum in be sure to have something softer than the clutch drum to tap it back into place using the centre of the clutch drum to avoid any possible damage on refiiting.
1 final thing, good luck. and don't forget to refill with grease
Posted on Mar 16, 2015
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Posted on Jan 02, 2017
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