026 Chain Brake "Hose"

[irhunter]

The IPL for the 026 shows a chain brake "hose" which slips over the main chain brake spring.

1121 162 8000

I have had a couple 026 apart, and none of them had the hose. I assume it shows up on late 026?

Do people add the hose on the earlier saws?

I assume the purpose is to keep the spring from slapping the case? I have never had a 026 which showed signs of case damage...but, I do have an 038 with spring-caused case damage.

Roy

 

[Woodslasher]

I don't know anyone that has installed or would install that sleeve if it was missing, except Guadaost, so I wouldn't worry about it.

 

[SteveSr]

I don't know anyone that has installed or would install that sleeve if it was missing, except Guadaost, so I wouldn't worry about it.

Well... I do! The factory put it there for a reason, likely to prevent damage to the plastic cover. It will also likely stop vibration from causing wear at each end of the spring.

 

[Wood Doctor]

I once wrapped a brake spring that was missing the sleeve with a few layers of some pretty tough painter's tape. That seemed to work. Toughest thing most mechanics complain about is installing the spring. Stihl has a special tool for doing it and I made one similar in my shop:

Note the special end that allows the spring to slip over it as it hooks on. I've never regretted making this tool.

 

[irhunter]

Here is some case damage, done by the spring, on my 038.

 

[Wood Doctor]

When spring steel rubs hard against plastic, the steel will win. Ever notice how complicated the entire Stihl chain brake mechanism is compared to others being made today? I remember walking into a small engine repair shop a few years back. The most parts lying around all over the place were Stihl chain brake handles. I asked the owner about it and he said, "Yep, we have a guy employed almost full time to do nothing but repair Stihl chain brakes."

 

[Vintage Engine Repairs]

I don't know anyone that has installed or would install that sleeve if it was missing, except Guadaost, so I wouldn't worry about it.