Bosch GKS 85 G (060157A900) - Инструкция по эксплуатации - Страница 18

18

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1 609 92A 2AZ | (30.3.16)

Bosch Power Tools

Adjusting the Riving Knife (GKS 85 G) 
(see figure B)



Before any work on the machine itself, pull the mains 
plug.



Always work with the riving knife, except when carry-
ing out plunge cuts. 

The riving knife prevents jamming of 

the saw blade while sawing.

Adjustment is carried out at minimal cutting depth, see “Ad-
justing the Cutting Depth”, page 18.

It is best to place the machine on the face side of the blade 
guard 

1

.

Loosen the clamping lever 

28

, pull the saw away from the 

base plate 

14

 and then tighten the clamping lever 

28

 again.

Loosen screw 

25

, adjust the riving knife 

13

 to the measure 

shown in the figure and tighten screw 

25

 with a tightening 

torque between 8 – 9 Nm.

Disassembly/Assembly of the Riving Knife

For disassembly of the riving knife 

13

, loosen screw 

25

 and 

remove the riving knife 

13

.

For assembly, insert the riving knife 

13

 and tighten it with the 

screw 

25

. Afterwards, check the adjustment of the riving 

knife as described previously.

Dust/Chip Extraction



Before any work on the machine itself, pull the mains 
plug.



Dusts from materials such as lead-containing coatings, 
some wood types, minerals and metal can be harmful to 
one’s health. Touching or breathing-in the dusts can cause 
allergic reactions and/or lead to respiratory infections of 
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered 
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials 
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suitable 

for the material.

– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.

Observe the relevant regulations in your country for the mate-
rials to be worked.



Prevent dust accumulation at the workplace. 

Dusts can 

easily ignite.

Mounting the Extraction Adapter (see figure C)

GKS 85:

Attach the extraction adapter 

26

 onto the chip ejector 

17

 un-

til it latches. Secure the extraction adapter 

26

 additionally 

with the screw 

27

.

A vacuum hose with a diameter of 35 mm can be connected to 
the extraction adapter 

26

.

GKS 85 G:

Attach the extraction adapter 

26

 onto the chip ejector 

17

 un-

til it latches. A vacuum hose with a diameter of 35 mm can be 
connected to the extraction adapter 

26

.



The extraction adapter may not be mounted when no 
external dust extraction is connected. 

Otherwise the ex-

traction channel can become clogged.



Do not connect a dust bag to the extraction adapter. 

Otherwise the extraction system can become clogged.

To ensure optimum extraction, the extraction adapter 

26

must be cleaned regularly.

External Dust Extraction

Connect the vacuum hose 

33

 to a vacuum cleaner (accesso-

ry). An overview for connecting to various vacuum cleaners 
can be found at the end of this manual.

The machine can be plugged directly into the receptacle of a 
Bosch all-purpose vacuum cleaner with remote starting con-
trol. The vacuum cleaner starts automatically when the ma-
chine is switched on.

The vacuum cleaner must be suitable for the material being 
worked.

When vacuuming dry dust that is especially detrimental to 
health or carcinogenic, use a special vacuum cleaner.

Operation

Operating Modes



Before any work on the machine itself, pull the mains 
plug.

Adjusting the Cutting Depth (see figure D)



Adjust the cutting depth to the thickness of the work-
piece. 

Less than a full tooth of the blade teeth should be 

visible below the workpiece.

Loosen the clamping lever 

28

. For a smaller cutting depth, 

pull the saw away from the base plate 

14

; for a larger cutting 

depth, push the saw toward the base plate 

14

. Adjust the de-

sired cutting depth at the cutting-depth scale. Tighten the 
clamping lever 

28

 again.

The tightening tension of the clamping lever 

28

 can be read-

justed. For this, unscrew the clamping lever 

28

, and screw it 

back again turned offset by at least 30° in anticlockwise direc-
tion.

Adjusting the Cutting Angle

It is best to place the machine on the face side of the blade 
guard 

1

.

Loosen the wing bolts 

8

 and 

16

. Tilt the saw sidewards. Ad-

just the desired measure on the scale 

6

. Tighten the wing 

bolts 

8

 and 

16

 again.

Note: 

For bevel cuts, the cutting depth is smaller than the set-

ting indicated on the cutting-depth scale 

29

.

Cutting Marks

The 0 ° cutting mark (

9

) indicates the position of the saw blade 

for straight cuts. The 45 ° cutting mark (

10

) indicates the po-

sition of the saw blade for 45 ° cuts without using the guide 
rail.

OBJ_BUCH-293-008.book  Page 18  Wednesday, March 30, 2016  9:12 AM