Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 10-02-2013, 02:31 PM
cakey cakey is offline
LawnSite Member
 
Join Date: Oct 2013
Location: Fairbanks, Alaska
Posts: 14
Stihl BR 600 winter mode question

I'm a new mechanic, kind of fell into it so I'm still quit ignorant that being said i maintain about 16 Stihl BR 600's we use them summer and winter. I was putting them in winter mode earlier but I don't completely understand what this accomplishes. More accurately it seems counter intuitive to me. It seems like winter mode allows more air into the machine and summer mode allows less air in. I would think you would want the opposite, although my observation could be wrong. Could anyone explain to me what the winter / summer mode accomplishes? Thank you.
Reply With Quote
  #2  
Old 10-02-2013, 05:57 PM
cakey cakey is offline
LawnSite Member
 
Join Date: Oct 2013
Location: Fairbanks, Alaska
Posts: 14
I think i figured it out, its pulling warm air in that runs by the engine first instead of cold air from the other side.
Reply With Quote
  #3  
Old 10-02-2013, 06:56 PM
rlitman rlitman is offline
LawnSite Senior Member
 
Join Date: Sep 2009
Location: Long Island
Posts: 986
Yep. It's there to keep the carb from icing up.
Reply With Quote
  #4  
Old 10-02-2013, 06:59 PM
cakey cakey is offline
LawnSite Member
 
Join Date: Oct 2013
Location: Fairbanks, Alaska
Posts: 14
Thanks, ya i took another look at it and it made more sense. We run these things down to 40 bellow so it seems to be effective.
Reply With Quote
  #5  
Old 10-02-2013, 07:02 PM
Jeff in AL's Avatar
Jeff in AL Jeff in AL is offline
LawnSite Senior Member
 
Join Date: Jul 2000
Location: Alabama
Posts: 423
Quote:
Originally Posted by cakey View Post
I think i figured it out, its pulling warm air in that runs by the engine first instead of cold air from the other side.
That would be correct...

Winter mode (with the deflector open) allows warn air from the engine to enter the carburetor to help prevent "icing".

Summer mode (with deflector closed) allows no direct warm air from the engine to enter the carburetor.

Keep in mind that "icing" can happen with ambiant tempetures above 32 degrees also!

Also make sure to switch from winter mode back to summer mode in spring so the engine will not overheat!
__________________
Jeff in AL

How very observant of you there captain obvious.

The amount of FREE information that you receive here will be directly proportional to the amount of information that you provide!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 03:25 AM.

Page generated in 0.06426 seconds with 9 queries