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chain brake lever. 

(Fig. 9)

  8.   Chain and motor should stop immediately.

  9.   If the chain brake functions normally, switch off the 

motor and return the chain brake in disengaged po

-

sition.

WARNING:

 If the chain and motor fail to stop 

when the chain brake is engaged, take the saw to the 

nearest  authorized  SPARKY  service  centre.  Do  not 

use the saw with a faulty chain brake.

General cutting instructions

KICKBACK  

(Fig. 2a)

Kickback is the sudden backward/upward motion of the 

chain  saw,  occurring  when  the  chain  (at  the  tip  of  the 

chain bar) comes in contact with a log or wood, or when 

the chain becomes jammed.

When kickback occurs the chain saw reacts unpredict

-

ably  and  can  cause  severe  injuries  to  the  operator  or 

bystanders.

Particular  attention  must  be  given  when  sawing  side-

ward, slanted or during length cuts, as the spiked bump-

er (14) usually cannot be applied.

To avoid kickback:

  -   Saw with the chain bar at a flat angle.

  -   Never  work  with  a  loose,  widely  stretched  or  the 

heavily worn out chain.

  -   Ensure chain is sharpened correctly prior to opera-

tion.

  -   Never saw above shoulder height.

  -   Never work with the tip of the chain bar.

  -   Always hold the chain saw firmly with both hands.

  -   Always use a low-kickback chain.

  -   Apply the spiked bumper for leverage.

  -   Ensure correct chain tensioning.

GENERAL BEHAVIOR

Always hold the chain saw firmly with both hands, front 

grip with the left hand and rear grip with the right hand. 

Fully grip both handles at all times during operation. Nev-

er operate chain saw using only one hand.

Ensure  power  cord  is  located  to  the  rear,  away  from 

the chain and wood and so positioned that it will not be 

caught on branches or the like during cutting.

Operate the chain saw only with secure footing. Hold the 

chain saw at the right-hand side of your body. 

(Fig.10)

The chain must be running at full speed before it makes 

contact with the wood. Use the spiked bumper to secure 

the saw onto the wood before starting to cut. Use the 

spiked  bumper  (14)  as  a  leverage  point  while  cutting.  

(Fig.11a)

Reset the spiked bumper at a lower point when sawing 

thicker logs by pulling the chain saw slightly backwards 

until  the  spiked  bumper  releases,  and  repositions  at 

lower level to continue sawing. Do not remove the saw 

completely from the wood.

Do not force the chain while cutting, let the chain do the 

work, using the spiked bumper to apply minimal leverage 

pressure.

Do not operate the chain saw with arms fully extended 

or  attempt  to  saw  areas  which  are  difficult  to  reach,  or 

on  a  ladder.  Never  use  the  chain  saw  above  shoulder 

height. 

(Fig.11b)

Optimum results are achieved when the chain speed re-

mains steady during cutting.

Beware when reaching the end of the cut. The weight of 

the saw in your arms may change unexpectedly as it cuts 

free from the wood.

Always remove the saw from a wood cut while the saw 

is running.

FELLING A TREE  

(Fig.12)

WARNING:

 Always wear a safety helmet 

where there is a risk of falling objects..

WARNING: 

The chain saw can only be used 

to fell trees smaller in diameter than the usable cutting 

length of the chain bar.

WARNING: 

Prior to performing the felling cut 

always re-check there are no bystanders, animals or 

obstacles in the vicinity of the falling tree.

WARNING: 

Do not cut down a tree during 

high or changing winds or if there is a danger to prop

-

erty.

When bucking and felling operations are being per

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formed  by  two  or  more  persons,  at  the  same  time,  the 

felling operations should be separated from the bucking 

operation by a distance of at least twice the height of the 

tree being felled. Trees should not be felled in a manner 

that would endanger any person, strike any utility line or 

cause any property damage. If the tree does make con

-

tact with any utility line, the company should be notified 

immediately.

The chain saw operator should keep on the uphill side 

of the terrain as the tree is likely to roll or slide downhill 

after it is felled.

An escape path 

②

. should be planned and cleared as 

necessary before cuts are started. The escape path 

should extend back and diagonally to the rear of the ex

-

pected line of fall 

③

.

Before felling is started, consider the natural lean of the 

tree, the location of larger branches and the wind direc-

tion to judge which way the tree will fall.

Remove dirt, stones, loose bark, nails staples, and wire 

from the tree.

Small trees up to 15–18 cm in diameter are usually cut in 

a single cut. Larger trees require notching cuts. Notching 

cuts determine the direction the tree will fall.

Generally felling a tree consist of two basic operations, 

notching undercut and felling back cut.

Notching undercut

Make the notch 

(X – W)

 1/3 the diameter of the tree, per-

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11.5.2017 г.   14:42:51