Technical Information · issue 3 of 2005

New STIHL KB-KM CombiTool Bristle Brush; New design of the STIHL KW-KM CombiTool Sweeper Drum

IssueTI 3/2005

Full text

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STIH)

Technical Information 03.2005

New STIHL KB-KM KombiTool Bristle Brush Series 4601
New design of the STIHL KW-KM KombiTool Sweeper Drum Series 4601

Contents
1. KB-KM Bristle Brush part no. 4601 740 4901
2. KW-KM Sweeper Drum part no. 4601 740 4904
3. Permissible KombiEngines
4. Assembling the unit
5. Specifications
6. Service accessories
7. Spare parts
8. Repairs
9. Repair times

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1. KB-KM Bristle Brush 2. KW-KM Sweeper Drum

The KB-KM bristle brush is particularly suitable for The KW-KM sweeper drum is especially suitable for
cleaning surfaces and paths, including natural stone cleaning surfaces and paths, of materials such as
floors and walkways. wet leaves or soil, - and removing snow or water.
Except for the new shaft, the new KB-KM series Except for the new shaft and deflector, the new KW-
bristle brush primarily uses parts and components KM sweeper drum primarily uses parts and
that are used in the KB-MM multitool (series 4601) components that are used in the KW-MM multitool
including the gear unit of the MM 55. (series 4601) including the gear unit of the MM 55.

2.1 Important note regarding replacement
parts
The shaft of the new series 4601 KW-KM KombiTool
is approximately 220 mm (8.7 in.) longer than the
shaft of the previous design for the series 4602. The
longer shaft is required due to the pushback force
created by the MM 55 gear unit. The shorter shaft of
the previous KombiTool may not be used for the new
design KW-KM!
Furthermore, the gears (4.4, item 7) and shafts
(4.4.1, item 8) of the 4602 series may not be used.

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Technical Information 03.2005 Page 3

3. Permissible KombiEngines 4.2 Mount the deflector

This KombiTool can only be used with the following
KombiEngines:
STIHL KM 55 R, KM 85 R,
STIHL KM 110 R
The KombiTools can also be mounted to STIHL
brushcutters with a split boom (T models).
These KombiTools can therefore also be operated
with the following devices:
STIHL FS 55 RT, FS 83 RT, FS 85 RT

4. Assembling the unit

4.1 Marking the shaft

. Remove clamping screws (1) and slide the
deflector (2) beyond the mark (arrow) on the
shaft (3), then slide it back until the deflector
reaches or covers the mark (arrow in the
bottom detail).
. Align the deflector so that it is vertical, and the
. Remove the protective cap and store it in a safe positioning pin (arrow in the top detail) faces
place. Make a mark on the shaft at a distance upward on the shaft.
(A) of 125 mm (4 7/8 in.) (with a pencil or felt . Tighten clamping screws (1) – the deflector may
marker). not rotate on the shaft.

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4.3 Remove the KB or KW sweeping tools 4.4.1 Aligning the gear box

. Remove the spring clip (1) from the end of the
shaft (2) and the sweeping tool (3) from the
shaft.
. Remove the other sweeping tool in the same
manner.

4.4 Mounting the gear box

. Align the gear box on the shaft so that the shafts
(8) are parallel with the deflector.
. Tighten clamping screws to prevent the gear
box from rotating on the shaft.

4.5 Mount the KB or KW sweeping tools

. Shove the sleeve (4) on the shaft (5) until it
stops.

. Place the sweeping tool (3) on the shaft. Insert
the spring clip (1) in the hole on the end of the
shaft and turn it flat against the surface.
. Mount the other sweeping tool in the same
. Remove the clamping screws (6) and shove the manner.
gear box (7) on the shaft (5) while moving the
gear box back and forth. Always mount both right hand and left hand
sweeping tools.

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Technical Information 03.2005 Page 5

4.6 Removing and fitting the deflector Removal
extension
. Release the tab (1) with the combination wrench
and pull off the deflector extension.
Mounting
. Shove the right deflector extension onto the
deflector and lock in the tab (1).
. Shove the left deflector extension onto the
deflector and lock in the tab (1).

The deflector extension guides keep material away
from you and the device. Never work without a
deflector extension.
The left and right deflector extensions are different.

5. Specifications
KombiTool Operating width Diameter Total length Weight
(mm) (in) (mm) (in) (mm) (in) (kg) (lbs)
KB-KM Bristle Brush 600 23.6 250 9.8 1246 49.1 6.7 14.8
KW-KM Sweeper Drum 600 23.6 270 10.6 1256 49.4 7.2 15.9

6. Service accessories

6.1 Special Servicing Tools
The special tools are specified in the STIHL
KombiTool service manual.

7. Spare parts
A printed replacement parts list is available for these
new tools which lists just the following:
KW-KM (4601), KB-KM (4601),
KW-KM (4602).
The new devices are also included in edition
01/2005 of the STIHL Service Communication
System (MediaCat CD-ROM).

Important:
The shaft for the new series 4601 KW-KM is approx.
220 mm (8.7 in.) longer than the shaft for the series
4602 and must be used for the series 4601!
The gears (4.4, item 7) and shafts (4.4.1, item 8) of
the 4602 series may not be used.

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8. Repairs 9. Repair times
Specific national safety regulations and the The repair times are specified for trained service
safety instructions in the User Manual must be personnel and a fully equipped repair shop.
observed when starting the machine.
This table for the KB-KM and KW-KM series can be
added to the STIHL repair timetables manual.
8.1 Service note
Refer to the STIHL KombiTool service manual for
service and repairs. All repair times are shown in minutes.

Repair Code
Diagnostic time and time for test run is
included where applicable.
8.2 Gear box assembly
Repair Description KB KW
If repairing the gear box, use 0781 120 1004
(40 g, can) MM gear grease. 1 Replace outer drive tube (support
The gear box is filled with 30 - 35 g of grease. tube) and or liner. 15 15
2 Replace gear box assembly. 15 15
The gears do not have to be regularly serviced. The
3 Replace guard or deflector. 10 10
gears only have to be regreased when dismantling
the gear box for repairs. 4 Replace drive cable or drive shaft. 15 15
14 Replace sweeper drum
assemblies. 15 15
15 Replace sweeper belt(s). -- 20
40 Miscellaneous repairs and other
repairs not listed. 15 15
45 Handling allowance only-no labor. 5 5
50 No labor. 0 0

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