Makita DCS 520i Service Manual download pdf (Page 22)

Starting

the engine

Cold-starting

the

DCS

430,431,

DCS

520,

DCS

540:

The carburetors of these saws have a choke valve for cold

starting (mixture enrichment).

To make

easier

start, the chain saw

DCS

431

is equipped

with a semi-automatic starting valve (W5). Pushing this valve

in reduces the amount of compression effort needed,

that it

is easier

bring the engine up

starting speed when pulling

the starter cable. The high pressure increase in the combustion

chamber that results from the

first

ignitions will automatically

close the starting valve (button pops back out).

Model

DCS

430,

DCS

520

not have

startlng valve.

Starting and carburetor adjustment are as for model DCS

431

except without tho Instruction 'Push tho starting

valve".

Put the short-circuit ignition switch

the

'I'

position

(Ell).

Pull

out

the choke

(812).

Depressthe half-throttle lockbutton

(W3)

half-way andhold.

Depress the throttle

(814)

and half-throttle lock button

(en)

all the way. Release the throttle

will now be held at

half-throttle by the lock button.

Push the starting valve

(815)

(only

DCS

431).

Slowly pull

out

the starter cable until you notice resistance

(the piston is positioned before the top dead center).

Now pull the starter cable with a fast and forceful movement

until you hear the first ignition.

CAUTION:

not pull out the starter cable more than approx.

cm. and lead it back by hand.

When you hear the

first

ignition, push the choke

(BM)

in.

Push the starting valve again (only

DCS

431)

and pull the

starter cable. As soon as the engine is running, press

the throttle

(W4)

release the half-throttle lock

(W3).

allowing the engine

idle.

CAUTION: As soon as the engine is started

must be put in

idle

prevent the chain brake from being damaged.

Now release the chain brake.

Move at least 10 feet

m) away from the place where you

\-,

fuelled the saw.

Makesure you have agoodfooting, and place thesaw on the

ground in such a way that the chain

not touching anything.

Engage the chain brake (lock).

Hold the tubular handle tightly wlth one hand and press the

chain saw

the ground.

Steady the rear handle by standing in the hand guard.

Cold-starting the

DCS

520i

and DCS 5200i:

The carburetors of these saws have a fuel-injection system

(injection carburetor) for cold starting (mixture enrichment).

These

two

cold-starting systems work differently.

Put the short-circuit ignition switch in the

"I'

position

(Wl).

Pull out the choke

(BE)

(opens the injection valve).

Depress the half-throttle lock button

(W3)

half-way and hold.

Depress the throttle

(W4)

and half-throttle lock button

(W3)

all the way. Release the throttle

will

now be held at

half-throttle by the lock button.

Note:

the temperature is below

-15"

(5'

start at full

throttle.

Slowly pull out the starter cable until you notice resistance

(the piston is positioned before the top dead center).

Now pull the starter Able with a fast and forceful movement

until you hear the

first

ignition.

CAUTION:

not pull out the starter cable more than approx.

50 cm. and lead

back by hand.

Push in the choke

(BM)

when the engine

starts,

or after the

first audible ignitions.

the engine has not

yet

started, keep pulling the starter

<:;

cable until

does.

soon

as the engine

running, press the throttle

(W4)

release the half-throttle lock(B/3), allowing theengine

idle.

CAWION:

soon as the engine

started it must be put in

idle

prevent the chain brake from being damaged.

Warm starting

(all models):

Now release the chain brake.

described above for cold starting, but without using

the choke (W2). Keep the choke in.

Starting under special conditions

(MAKITA

DCS

520i and

DCS

5200i only):

In conditions

high ambient temperature and when

the

engine

has been stopped for only a short,period following fulCload

operation,

afuel

with

alow boiling point is used (winter fuel). and

at high altitudes especially, the heat could prevent the engine from

starting immediately.

this happens, proceed as follows:

Pull out the choke

(BE)

and start the engine at half-throttle.

as described for cold starting.

When the engine has started. release the chain brake

Immediately and gun the engine all the way several times

until

runs smoothly.

Now push in the choke

(812).

the engine won't start:

If the engine refuses

start even after a number of tries, check

the spark plug (see the section on "Replacing the spark plug").

Stopping the

engine

Put the short-circuiting switch

(ell)

in position

"0"

(STOP).

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 33 34

Comments to this Manuals

No comments

Makita DCS 520i Service Manual Page 22

Comments to this Manuals

Related products and manuals for Power chainsaws Makita DCS 520i