Bosch PPS 7 S - Инструкция по эксплуатации - Страница 45

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45

Bosch Power Tools

1 609 929 W71 | (30.3.11)

Dust/Chip Extraction

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 reac-
tions 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 con-
nection with wood-treatment additives (chro-
mate, wood preservative). Materials containing 
asbestos may only be worked by specialists.
– Always use dust extraction.
– 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 materials to be worked.
The dust/chip extraction can be blocked by 
dust, chips or workpiece fragments.
– Switch the machine off and pull the mains 

plug from the socket outlet.

– Wait until the saw blade has come to a com-

plete stop.

– Determine the cause of the blockage and cor-

rect it.

Cleaning the Lower Saw Blade Cover 
(see figure I)

A cleaning flap 

55

 located in the lower saw 

blade cover 

54

 can be opened for removal of 

workpiece fragments and large chips.
– Switch the machine off and pull the mains 

plug from the socket outlet.

– Wait until the saw blade has come to a com-

plete stop.

– Remove table extension 

27

 and universal 

guide 

1

.

– Tilt the machine on it’s side.
– Remove bottom plate 

39

.

– Open cleaning flap 

55

 of the lower saw blade 

cover 

54

 and remove workpiece fragments 

and chips.

– Shut the cleaning flap and screw the bottom 

plate on again.

– Bring the machine back to the working posi-

tion and mount all attachment parts.

External Dust Extraction (see figure H)

– Connect a vacuum hose to the sawdust ejec-

tor 

10

.

The vacuum cleaner must be suitable for the ma-
terial being worked.
When vacuuming dry dust that is especially det-
rimental to health or carcinogenic, use a special 
vacuum cleaner.

Changing the Saw Blade 

(see figures J1

–

J4)

f

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

f

When mounting the saw blade, wear protec-
tive gloves. 

Danger of injury when touching 

the saw blade.

Select the suitable saw blade for the material to 
be cut.
Use only saw blades whose maximum permitted 
speed is higher than the no-load speed of the 
power tool.
Use only saw blades that correspond with the 
characteristic data given in these operation in-
structions and that are tested and marked in ac-
cordance with EN 847-1.

Removing the Saw Blade

– Remove the blade guard 

3

 and the laser unit 

41

 from the riving knife 

4

.

– Loosen the screws of insert plate 

5

 with Al-

len key 

13

 and remove the insert plate from 

the saw table.

– Turn  crank 

18

 clockwise to the stop, so that 

the saw blade 

28

 is in the highest possible 

position above the saw table.

– Adjust a saw blade bevel angle of 45 ° . (see 

“Adjusting Bevel Angles”, page 47)

– Turn the Allen screw 

57

 with the Allen key 

13 

provided while at the same time pressing the 
spindle lock 

56

 until it engages.

– Keep the spindle lock 

56

 pressed and un-

screw the Allen screw 

57

 in anticlockwise di-

rection.

– Remove the exterior clamping flange 

58

.

– Remove the saw blade 

28

.

OBJ_BUCH-1259-002.book  Page 45  Wednesday, March 30, 2011  11:02 AM