Changing clutch on Husqvarna 135

[Starla4270]

Hi, I purchased a new Husqvarna 135 chainsaw about 3 years ago, and never really started using it until recently. However, when I went to get a replacement chain, I discovered that none of the chains fit, and even if I change the bar, still nothing fits. The only chain that fits is sold in Europe and can't be found in the US (Oregon 91PX056E). The bar is 14". The problem is that the drive side of the available chains doesn't fit the bar or the clutch. And like I said, I tried a new bar, but still the chain wouldn't fit the clutch. Not fitting on the clutch seems to be the main problem. So, I'm now looking at modifying my saw by changing out the clutch, so that my saw will be able to fit an American chain. Problem is, I don't know which clutch to purchase, that will fit on my saw. Can anyone help me? Thanks in advance.

 

[Bob Hedgecutter]

Okay- this is just a wee bit odd- but possible, should be a standard fit 3/8 Low Pro chain, probably with low kickback safety rakers, 14" should be 0.050 gauge and 52 drive links.
Need photos of the information stamped on your bar, they will be close to or under the clutch cover.

Could it be a previous owner has stuck a .325 clutch spur drive on your saw? Or possibly even 1/4 inch? Not that 1/4 would work with the Husqvarna bar fitted.
Photos as above and a close up one of the back of the clutch drum/bell that drives the chain please.

 

[Starla4270]

Thank you! I am the only owner, as it was purchased new. Here are the photos of the bar and clutch drum. The clutch drum is what the available chains will not fit on. Numbers on the drum (that you can't see clearly from the photo) are: 5803511-01 2017 44 3/8"-61

 

[Bob Hedgecutter]

Okay, I will admit- I missed it was a 135 and my mind registered 136 or 137 that I am more familiar with.
The 136/137 comes with a 0.050 3/8LP 16 inch bar- usually.
Your 135 is wearing a 14 inch bar and is still 3/8LP but should still be 0.050mm gauge.
Your spur drive is correct- the code numbers end in 6T not 61 though, the T standing for TEETH and there are 6 of them.

So, as the spur and bar are correct and original to the saw- the chain must be an incorrect fit.
Did the chain come in a box? And where was the chain purchased from?
Where is the original chain? Can it be held alongside the new chain to check the drive links are the same type and spacing?
Unless the spur drive is well worn where the drive links contact the teeth of the spur- any 3/8 low pro chain should fit.

 

[Bob Hedgecutter]

Could it be, the new chain was ordered online and you have the grown up version of 3/8" chain and not Low Pro 3/8" chain?
Do not get too hung up on the idea the saw must run 91 PX056E- all you need be concerned with is correct pitch, correct gauge and correct drive link count.
Pitch = correct spacing of the drive links to suit the bar nose sprocket and drive spur tooth spacing.
Gauge = the width/thickness of the drive links so they match the gap between the rails of the bar.
Drive link count = the overall length of the chain to suit the length of the bar and give allowance for adjustment.

The rest of chain codes is to do with the top side of the chain, cutter shape and configuration, raker shape and configuration, which have no real bearing on the fit to the saw- A Stihl chain can be made to fit your Husqvarna saw if needed.