Chainsaw Repair

copy and pasted link


SMB 2:1991
Section 9
Page/s 1/3
SERVICE UPDATE
Following is a listing of serial #'s to match introduced
improvements during 1990. Listing is valid for saws produced
in Huskvarna plant. Saws produced elsewere will not be listed
because of difficulties in getting serial #'s.
Please look up earlier SMB's for the full story. Please be
aware of that you will find the same serial # on different
models.
MODEL 2041/2045
As from serial # : 040 0001 we introduced a corrected
air conductor. See service bulletin 1990.11.08/01
As from serial # : 047 0001 -new tank cap holder. See
SMB 33:1990.
MODEL 455/535
As from serial # : 008 0001 (455) & 008 0151 (535) -new
material(Sorbitex) for recoil spring. No bulletin issued.
As from serial # : 021 0001 washer underneath flywheel
nut excluded. See SMB 29:1990.
As from serial # : 033 0001 (455) & 032 0176 (535) -new
inertia trigged chain brake. See service bulletin 1990.08.
15/01.
MODEL 2051 TURBO
As from serial # : 003 0420 -new air filter with rubber
supports and changed air filter cover. See service bulletin
1990.05.30/01 and SMB 3:1990.
As from serial # : 003 0516 -improved fitting of inner tube
in muffler and extra drilled outlet holes on Eurpoean
versions. See SMB 8:1990.
As from serial # : 008 0269 -7T rim instead of 8T rim on
most versions. See service bulletin 1990.05.30/01.
As from serial # : 034 0001 -new ignition module, new
cable set, new Turbo nozzle( later on we also changed the
nozzle to have "clips" instead of shrink hose at lower
portion), new fan housing/starter with rubber support, new
throttle wire, new limiter, new air filter and filter
cover, new o-ring, new screw, new muffler(CW & W saws),
new preheated intake air valve. See SMB 16:1990 and
24:1990.
As from serial # : 034 0001 we also introduced an reinforced
oil pump cover, stronger spring for safety latch, reinforced
chain catcher and a sticker on skandinavian saws.
These parts keep their part #'s, except sticker.
As from serial # : 034 0007 -cylinder with shorter cooling
fins on flywheel side to prevent dirt build up. No bulletin
issued.
As from serial # : 037 xxxx -cylinder with changed impute

SMB cont. 2:1991
Section 9
Page/s 2/3
hose fitting and shorter impuls hose. See SMB 24:1990.
As from serial # : 040 0022 -flange 503 18 41-01 with
better fitting for throttle wire. No bulletin issued.
As from serial # : 042 0301 -new european muffler. See SMB
24:1990.
As from serial # : 044 0761 -spring on fuel hose. See SMB
33:1990.
As from serial # : 045 0150 -better hoses for preheated
intake air system. See SMB 33:1990.
As from serial # : 045 0200 -changed exit for tank vent
hose on most versions. See SMB 33:1990.
As from serial # : 046 0001 -reintroduction of elbow fitting
for tank vent valve. See SMB 33:1990.
On model 2051 there have been saws returned to and rebuilt
by production. Therefor there can be a minor variation
regarding serial # given here and serial # on saws you have.
MODEL 625/630/670
As from serial # : 010 0005 (670) -new flange screw. See
service bulletin 1990.05.15/03.
As from serial # : 010 0054 (625), 012 0010 (630) &
010 0005 (670) -new inertia trigged chain brake, front
handle, spike and muffler. See service bulletin
1990.04.02/02 and SMB 27:1990.
As from serial # : 017 0067 (625), 016 0034 (630) &
016 0016 (670) -new starter, air conductor and oil tank
ventilation. See service bulletin 1990.05.15/03 and SMB
27: 1990.
As from serial # : 032 0001 (630) -KS cylinder. See SMB
32:1990:
As from serial # : 034 007Q (625), 035 0174 (630) &
035 0157 (670) -spike mounted on saw. See SMB 25:1990.
As from serial # : 037 0157 -new air filter holder. See
SMB 29:1990.
As from serial # : 047 0005 (625), 049 0001 (630 & 670)-
correctly assembled hose for oil tank vent. See SMB 32:1990
MODEL 2077
As from serial # : 011 0102 -reinforced pulley. Part #
remains unchanged. No bulletin issued. Concerns test saws.
As from serial # : 031 0001 -new muffler gasket. See SMB
33:1990.
As from serial # : 033 0001 -internally reinforced European
muffler. No bulletin issued.
As from serial # : 039 0052 -reinforced crankcase to
prevent breakages and for better fitting for muffler screws.
No bulletin issued.
As from serial # : 041 0001 -washer underneath clutch
excluded and a longer oil pump drive wheel introduced. See
SMB 32:1990.

SMB cont. 2:1991
Section 9
Page/s 3/3
As from serial # : 041 0025 -washer underneath flywheel
nut excluded. See SMB 33:1990.
As from serial # : 045 0001 -new chain catcher and chain
guide plate. See SMB 33:1991.
MODEL 2094 TURBO
As from serial # : 001 0001 -reinforced pulley. Part #
unchanged. No bulletin issued. Concerns test saws.
As from serial # : 024 0001 -bumper mounted to saw body.
No bulletin issued.
As from serial # : 025 0045 -corrected oil exit at bar pad
area. See SMB 20:1990.
As from serial # : 033 0045 -longer hub on pulley. See SMB
23:1990.
As from serial # : 034 xxxx -new ignition module. See SMB
23:1990. No specified serial # obtained.
As from serial # : 036 0016 -clutch drum with separate
needle bearing. See SMB 26:1990.
As from serial # : 036 0023 -13'th crankcase screw and
changed gasket. See SMB 32:1990.
As from serial # : 036 0090 -changed fuel hose. See SMB
26:1990.
As from serial # : 039 xxxx -new cable set. See SMB
23:1990.