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Инструкция по эксплуатации Страница: 22

Crown CT15212 [22/156] Recommendations on the power tool operation

English

Following setting up the number of stroke

rate of the saw blade 15 it is recommend-

ed to make a test saw cut using a spare

piece of the blank part (made of the same

material as the part to be processed).

When operating your power tool at a low speed for a

long time, it has to be cooled down for 3 minutes� To

do it, set a maximum stroke rate and leave your power

tool to run idle�

Pendulum rate selection

Pendulum rate facilitates selecting the optimal sawing

regime (feed velocity, the appearance of the saw cut,

etc�) for the processed material�

With each downward move the saw blade 15 is driven

back from the blank part which improves the release

of the sawdust, reduces the heating up and increases

the operating life of the saw blade 15� Moreover the

reduction of the feed force allows the worker to operate

the instrument without getting tired�

The degree of the pendulum strike may be changed

when operating the power tool� The lever for pendulum

stroke adjustment 10 allows setting four steps of the

pendulum stroke:

Step 0:

No pendulum action;

Step I:

Small pendulum action;

Step II:

Medium pendulum action;

Step III:

Large pendulum action�

It is recommended to consider the following rec-

ommendations when selecting the degree of the

pendulum rate:

• when the edge of the saw cut must be exact and

clean, select small pendulum rate or switch the pen-

dulum rate off;

• switch the pendulum rate off when processing thin

(sheet metal, sheet plastic, etc�) or hard materials

(alloy-free steel, non-ferrous metals, etc�);

• when sawing soft materials (soft wood, etc�) se-

lect large pendulum rate; it will increase the speed

of the operation, however the quality of the saw cut

may be reduced�

It is recommended to make a test saw

cut using a spare piece of the blank part

(made of the same material as the blank

part to be processed) after the pendulum

rate is selected.

Protection against contact with saw blade

Contact protector prevents accidental contact

with saw blade 15 and improves safety of work

performance�

Recommendations on the power tool

operation

Selecting the saw blade

Saw blades 15 of T-type may be used

with all of the jigsaw models.

Before starting the operation, please select the appro-

priate type of the saw blade 15 which should corre-

spond to the sawed material, sawing regime and the

quality of the edge of the saw cut� The designation of

the saw blade is printed on the package; you may also

ask the salesperson�

General guidelines for cutting

Make a test saw cut using a spare piece of

the blank part (made of the same material

as the material of the blank part) in order

to make sure that the saw blade 15, the

sawing speed and the pendulum strike have been

selected appropriately.

• Make sure that the blank part is tightly fastened and

that all of the metal pieces (nails, screw nails, etc�)

have been removed from it�

• Turn the power tool on before the saw blade 15

comes in contact with the blank part� Do not use extra

force; the operation requires some time� Extra force

will not speed up the operating process, but it will over-

load the tool�

• When the teeth of the saw blade 15 are too large for

the blank part (excessive vibration, splitting and chipping

of the processed surface will serve as a sign of the teeth

being too large), turn off the power tool immediately and

replace the saw blade 15 with the appropriate blade�

• If the saw blade 15 jams during the operation, turn off

the power tool immediately and try to expand the saw cut,

then carefully remove the saw blade 15 from the saw cut�

• After the cutting is nished, rst turn the power tool

off and then remove the saw blade 15 from the saw cut�

When cutting certain materials (like

metals), the saw blade 15 may heat up

excessively, therefore it is recommended

to use cooling or lubricating substances

which are to be applied to the point where the saw

blade 15 comes in contact with the blank part.

Plunge sawing (see g. 5)

Plunge sawing may be used only when

sawing soft materials, such as wood,

plasterboard, etc. This operating

technique facilitates sawing the holes

without preliminary drilling - the saw blade 15 cuts

through the blank part on its own. This technique

requires certain skill and may be applied using

short saw blades 15.

• Position the power tool on the front edge of the base

plate 11 (see g. 5) and turn it on. Slowly plunge the

blank part with the saw blade 15 by pressing the power

tool to the blank part�

• Once the saw blade 15 cuts through the blank part

return the power tool into its normal operating position

and continue cutting along the marked line�

Crown CT15212 [22/156] Recommendations on the power tool operation

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