Technical Information · issue 25 of 1995
Chain brake; pickup body; 039 oil pump
Model 029 saws will continue to be equipped as
Full text
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Technical Information
25.95
Model 029, 039 Chain Saws - Series 1127
&RQWHQWV
1. Chain brake (stronger brake spring, cover)
2. Pickup body (standardization)
3. 039 oil pump (feed rate increased)
1.====Chain brake
A higher strength brake spring will be installed
from machine number X 31 934 653=to further
optimize operation of the chain brake.
As the new brake spring has a slightly larger
diameter, the original cover 1127 021 1100 will
be replaced at the same time by the modified 02
11
cover 1127 021 1102. 021
27
11
Service note
139TI008 K
The strengthened brake spring may only be
installed together with the new cover
1127 021 1102.
Therefore, to simplify interchangeability, the new
brake spring will only be supplied together with the
new cover up to the end of 1997.
6XPPDU\
Part Name Original New Key Rem. MOQ
version version H
Brake spring with cover; --- 1127 160 5550 1
including items 1 and 2:
Brake spring 1121 160 5500 -*- 1 1)2)
Cover 1127 021 1100 1127 021 1102 2 1) 5
All other parts as before
Modification to be introduced from machine number X 31 934 653
5HPDUNV
1) Original version of part remains available for other models
2) New version of part is not available as separate item (up to end of 1997)
)Technical Information 25.95 - Page 2
2.====Pickup body
Fuel pickup body 0000 350 3500 has been
installed for some time in place of the original
version 1127 350 3500. This change was made
to further improve operation and standardize parts
with other models
The new pickup body has a longer service life and
better filteration than the original version.
6XPPDU\
Part Name Original New Key Rem. MOQ
version version H
Pickup body
1127 350 3500 0000 350 3500 1) 1
Modification to be introduced: in progress
5HPDUNV
1) Original version of part no longer available from factory
3.====039 oil pump
In the near future the new oil pump 1127 640 3201
(with a stroke of 0.88 mm/0.035 in) will be installed
in model 039 saws to increase the oil feed rate.
1
Model 029 saws will continue to be equipped as
before with oil pump 1127 640 3200 (with a stroke
of 0.75 mm/0.030 in).
Pistons with a stroke of 0.88 mm (0.035 in) can be 2
easily identified by the two grooves next to the
139TI009 K
drive teeth (see arrow in illustration).
1 = Pump piston 1127 647 0600
2 = Pump piston 1127 647 0601
Oil pump Oil pump
(0.75 mm/0.030 in) (0.88 mm/0.035 in)
0D[LPXP
oil feed rate:======15 cm3==============17.5 cm3
(at 10,000 rpm) (0.4 fl.oz) (0.6 fl.oz)
)Technical Information 25.95 - Page 3
Service note
Neither the "039 oil pump" nor the new pump
piston may be installed in model 029 chain saws
since the oil tank will otherwise run dry before the
fuel tank (because of the 029’s lower fuel
consumption). This may result in damage to the
bar and chain if the user doesn’t notice that the
oil tank is empty and continues cutting.
Older 039 chain saws may be upgraded by
installing the new piston with a stroke of 0.88 mm
(0.035 in) in the original oil pump 1127 640 3200.
6XPPDU\
Part Name Original
version
foNew
version
Key Rem. MOQ
H
Oil pump; 1127 640 3200 --- 1)
Oil pump 039; --- 1127 640 3201 1
each of above include:
Pump piston (0.75 mm/0.030 in) 1127 647 0600 --- 1)
Pump piston (0.88 mm/0.035 in) --- 1127 647 0601 1
All other parts as before
Modification to be introduced: in progress
5HPDUNV
1) Part remains available as spare for model 029
Technical Information bulletin 24.95 refers to specific sales territories only and has not therefore been issued
in all countries
Last Technical Information on models 029, 039: 39.94
Waiblingen, April 6, 1995 Andreas Stihl - D1/MTK-sc
© 1995 Andreas Stihl Technical Documentation Page 2 of 3
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Extracted from the manufacturer's 2012 service catalogue. Most of these PDFs embed fonts with a shifted character map, so the text above was recovered rather than copied — read it as a faithful but imperfect transcription, and treat the page image above each block as the authority where the two disagree — the figures exist only there, because they are vector drawings that text extraction cannot keep.