Disassembly of trimmer you can see on youtube. The link is below.

 

 

 

Husqvarna
36 (1991-06) Chainsaw
36 (1994-05) Chainsaw
41 (1991-06) Chainsaw
41 (1994-05) Chainsaw
136 (2001-09) Chainsaw
136 (2003-01) Chainsaw
136 (2004-01) Chainsaw
137 (EXPORT) (2008-06) Chainsaw
137 (2005-01) Chainsaw
137 (2007-01) Chainsaw
141 (2001-09) Chainsaw
141 (2003-01) Chainsaw
141 (2004-01) Chainsaw 
142 (EXPORT) (2008-06) Chainsaw
142 (2005-01) Chainsaw
142 (2007-01) Chainsaw
230 (2009-04) Chainsaw
235 (2008-01) Chainsaw
235 (2009-04) Chainsaw 
235 (2010-04) Chainsaw
235 E (2008-01) Chainsaw
235 E (2009-04) Chainsaw
235 E (2010-04) Chainsaw
236, 967326401, 967326402, 967326403, 967326406 (2014-10) Chainsaw
236 E (2010-04) Chainsaw
236 E, 967326501, 967326502, 967787901 (2018-02) Chainsaw
240 (2008-01) Chainsaw
240 (2009-04) Chainsaw 
240 (2010-04) Chainsaw
240 E (2008-01) Chainsaw
240 E (2009-04) Chainsaw
240 E (2010-04) Chainsaw
240 E TRIOBRAKE (2010-01) Chainsaw
Jonsered
2035 (2001-09) Chainsaw
2036 (1993-11) Chainsaw
2036 (1995-11) Chainsaw
2036 (2002-01) Chainsaw
2040 (1993-11) Chainsaw
2040 (1995-11) Chainsaw
2040 (2002-01) Chainsaw
CS2040 (2003-01) Chainsaw 
CS2137 46 CC (2009-02) Chainsaw 
CS2137 (2003-01) Chainsaw 
CS2137 (2004-01) Chainsaw 
CS2137 (2004-05) Chainsaw
CS2137 (2005-01) Chainsaw
CS2138 46 CC (2009-02) Chainsaw 
CS2138 (2005-01) Chainsaw
CS2138 C (2006-01) Chainsaw
CS2234 (2009-04) Chainsaw 
CS2234 (2010-04) Chainsaw 
CS2234 (2014-05) Chainsaw
CS2234 S (2009-01) Chainsaw
CS2234 S (2009-04) Chainsaw 
CS2234 S (2010-04) Chainsaw
CS2238 (2009-01) Chainsaw
CS2238 (2009-04) Chainsaw
CS2238 (2010-04) Chainsaw 
CS2238 (2014-05) Chainsaw 
CS2238 S (2009-01) Chainsaw
CS2238 S (2009-04) Chainsaw 
CS2238 S (2010-04) Chainsaw
CS2238 S (2014-05) Chainsaw 
Partner
PARTNER 20 X, 966037502 (2011-01) Chainsaw
33, 952802152 (2008-05) Chainsaw
333, 952802135 (2008-05) Chainsaw
350, 952801902, 952801915 (2008-05) Chainsaw 
351, 370, 390, 420, 952801732, 952801802, 952801741 (2008-05) Chainsaw 
352, 952801904, 952802002 (2008-05) Chainsaw
352, 952801941 (2008-05) Chainsaw 
352 Chrome, 952802058, 952802103 (2008-05) Chainsaw
371, 952801913, 952801905 (2008-05) Chainsaw
Formula 400, 952802065, 952802119 (2008-05) Chainsaw 
Formula 400 Chrome, 952802070 (2008-05) Chainsaw 
FORMULA 60, 966054701, 966037501 (2011-03) Chainsaw
P371 Chrome, 952802177 (2008-05) Chainsaw
P371XT Chrome, 952802333, 952802348 (2008-11) Chainsaw
P4-18 XT, 952802181, 952802250 (2008-05) Chainsaw
P4-20XT, 952802182, 952802231, 952802319, 952802251 (2009-04) Chainsaw 
P436 Chrome, 952802336, 952802349 (2008-11) Chainsaw
McCULLOCH
444, 952802134 (2008-05) Chainsaw
CS330, 967178201 (2012-09) Chainsaw
CS340, 966631401, 966631402, 966631403, 966631404, 966631405 (2011-03) Chainsaw
CS340, 967326201, 967326203, 967326204 (2014-10) Chainsaw
CS360 (2012-06) Chainsaw
CS370 (2012-07) Chainsaw 
CS380, 966631501, 966631502, 966631503, 966631504, 966631505, 966631508, 966631509 (2011-03) Chainsaw 
CS380, 967326301, 967326303, 967326304, 967326307, 967326309 (2014-10) Chainsaw
CS400 (2012-07) Chainsaw
CS400T (2012-07) Chainsaw
CS50S, 967300301, 967300302 (2016-04) Chainsaw
M3414, 952802207, 952802296 (2008-06) Chainsaw
M3416 N, 952802212 (2008-06) Chainsaw 
M3616, 952802208, 952802297 (2008-05) Chainsaw 
M4218, 952802210, 952802299 (2008-05) Chainsaw
M4620, 952802211, 966498301 (2012-02) Chainsaw
Mac 20 X, 966566501, 966566502 (2010-11) Chainsaw
MAC 20 X, 966566502 (2010-11) Chainsaw
MAC 2214 AV, 952802076 (2008-05) Chainsaw
MAC 2316 AV, 952802077 (2008-05) Chainsaw
MAC 2416 AVT, 952802078 (2008-05) Chainsaw 
MAC 2618 CAV, 952802079 (2008-05) Chainsaw
MAC 2818 AV, 952802080 (2008-06) Chainsaw
MAC 3-14 XT, 952802220, 952802317, 966604401 (2008-06) Chainsaw 
MAC 3-16 XT, 952802243, 952802324 (2008-06) Chainsaw
MAC 320, 952802133 (2008-03) Chainsaw
MAC 325, 952801940, 952802153 (2008-05) Chainsaw
MAC 340, 952802173 (2008-05) Chainsaw 
MAC 4-10 XT, 952802327 (2008-11) Chainsaw
MAC 4-18 XT, 952802197, 952802255, 952802248 (2009-07) Chainsaw
MAC 4-20 XT GCS, 952802180, 952802227, 952802244, 952802249, 952802318, 952802343 (2009-04) Chainsaw
MAC 4-20 XTC, 952802219 (2008-05) Chainsaw
Mac 7-38, Mac 738, 952802195, 952802197, 952802258 (2011-03) Chainsaw
MAC 7-40, MAC 740, 952802125, 952802183, 952802184 (2011-03) Chainsaw
MAC 742, MAC 7-42, 952802185 (2011-03) Chainsaw
MAC 8-38, MAC 838, 952802196 (2011-03) Chainsaw
MAC 8-42, MAC 842, 952802150, 952802148, 952802270, 966604601 (2011-05) Chainsaw 
Mac Cat 338, 952802051, 952802051 (2008-05) Chainsaw
Mac Cat 436, 952801909, 952802014 (2008-05) Chainsaw 
Mac Cat 438, 952802011, 952802054, 952802067, 952802116 (2008-05) Chainsaw
Mac Cat 440, 952801823, 952802068 (2008-05) Chainsaw 
Mac Cat 441, 952801910, 952801964 (2008-05) Chainsaw
Mac Cat 442, 952801946, 952802045, 952802069, 952802117 (2008-05) Chainsaw 
XTREME 8-42, 952802186, 952802187, 952802200, 952802245, 952802256 (2011-05) Chainsaw