Technical Information · issue 23 of 2006
Drive tube with bearing housing; New special clamping collar tool; Mechanical design and function; Use; Summary
IssueTI 23/2006
Full text
Page 1 of 4
STIH)
Technical Information 23.2006
Trimmers STIHL FS 45, FS 46 – Series 4140
Electric grass trimmer STIHL FSE 60 – Series 4809
Contents
1. Drive tube with bearing housing
2. New special clamping collar tool
2.1 Mechanical design and function
2.2 Use
3. Summary
1. Drive tube with bearing housing
The bearing housing (1) is located in the drive
2 tube (2) by means of a press-fit. It is secured in the
1 drive tube by means of the screw (4) for the
deflector mounting bracket (3).
The new special "clamping collar" tool (see
section 2) is needed to remove the bearing housing
from the drive tube and to insert it in the drive tube.
The complete bearing housing can be pulled out of
3 the drive tube and pushed into the drive tube with
234TI005 KN
this tool.
4
The part numbers for the spare parts are listed in
section 3, Summary.
Until now, the "drive tube with bearing housing" was
available for replacement only as an assembly. The
complete bearing housing (1) is now available as a
spare part.
TI_23_2006_30_01_01.fm englisch / English USA
)m~ge 2 Technical Information 23.2006
2. New special clamping collar tool 2.2 Use
2.1 Mechanical design and function 2.2.1 Removal of the bearing housing
3
1 7
234TI006 KN
2
. Remove the deflector, deflector mounting
bracket (6) and locating screw (7).
901TI040 KN
1 = Clamping collar tool
2 = Compression spring 9
3 = Tommy screw
The new special clamping collar tool 5910 890 1100
has been developed for removal and installation of 8
the bearing housing 4140 640 1400.
901TI036 KN
. Slide the special clamping collar tool onto the
1 drive tube.
. Align the clamping collar tool, taking care to
ensure that :
4 5 - the thrust washer (8) of the bearing housing
remains free,
- the locating hole (9) in the drive tube is centered
in relation to the gap of the clamping collar tool,
901TI035 KN
and / or
The bearing housing (4) is located in the drive
tube (5) by means of a press-fit. The new clamping
collar (1) deforms the drive tube at appropriate
points so the bearing housing can be removed from
inside the tube.
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Technical Information 23.2006 Page 3
. Position a new bearing housing (4) at the open
end of the drive tube.
. If necessary, further tension the screw of the
clamping collar tool until the bearing housing (4)
can be pushed into the drive tube easily and up
to the stop.
901TI037 KN
- the thrust piece (10) on the clamping collar tool
is precisely centered in relation to the notch on
the collar of the bearing housing (see arrow).
. With the aid of the tommy screw, gently tension
the clamping collar tool until the bearing housing
901TI052 KN
can be pulled easily out of the drive tube.
If the clamping collar tool is overtensioned, the
drive tube will be permanently deformed and
thus destroyed.
. Turn the collar on the bearing housing so that
Leave the clamping collar tool in place and the holes for the locating screw in the drive tube
tensioned on the drive tube for installation of a new and bearing housing are lined up
bearing housing.
. Loosen and remove the clamping collar tool.
. Slide the deflector bracket onto the drive tube,
2.2.2 Installation of the bearing housing then refit and tighten down the locating screw.
4
901TI038 KN
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)m~ge 4 Technical Information 23.2006
3. Summary
Item Part name Previous New Remarks
1 Bearing housing assembly -*- 4140 640 1400
Remaining parts of the drive tubes as
before
2 Clamping collar tool; --- 5910 890 1100
including Items 3 and 4:
3 Compression spring 0000 997 1335 1)
4 Tommy screw --- -*- 2)
5 Star-handle screw --- 9570 601 1880 3)
Remarks
1) Part is already available as a spare part for various models.
2) Part is not available separately as a spare part, the part in Item 5 can be used instead.
3) Part can be used as spare part instead of the part in Item 4.
Last Technical Information on the STIHL FS 45: 04.2005
STIHL FS 46: 04.2005
STIHL FSE 60: 23.2001
© ANDREAS STIHL AG & Co. KG, 2006 Technical documentation
D1/MTK-na
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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.