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5method of operation, Kickback, Kickback prevention – Dolmar MS-245.4 C User Manual

Page 5: Maintenance instructions, Cutting tools

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5

Method of operation

– Only use the Petrol Brushcutter in good light and visibility. During the winter

season beware of slippery or wet areas, ice and snow (risk of slipping).

Always ensure a safe footing.

– Never cut above waist height.
– Never stand on a ladder and run the Petrol Brushcutter.
– Never climb up into trees to perform cutting operation with the Petrol

Brushcutter.

– Never work on unstable surfaces.
– Remove sand, stones, nails etc. found within the working range.

Foreign particles may damage the cutting tool and can cause dangerous

kick-backs.

– Before commencing cutting, the cutting tool must have reached full working

speed.

Caution:

Kickback

Diagrammatic

figure

Diagrammatic

figure

Kickback

– When operating the Petrol Brushcutter, uncontrolled kickback may occur.
– This is particularly the case when attempting to cut within a blade segment

between 12 and 2 o’clock.

– Never apply the Petrol Brushcutter within a segment between 12 and 2

o’clock.

– Never apply this segment of the Petrol Brushcutter blade to solids, such as

bushes and trees, etc., having a diameter in excess of 3 cm or the Petrol

Brushcutter will be deflected at great force with the risk of injuries.

Kickback prevention

To avoid kickbacks, observe the following:

– Operation within a blade segment between 12 and 2 o’clock presents positive

hazards, especially when using metal cutting tools.

– Cutting operations within a blade segment between 11 and 12 o’clock, and

between 2 and 5 o’clock, must only be performed by trained and experienced

operators, and then only at their own risk.

Easy cutting with almost no kickback is possible within a blade segment

between 8 and 11 o’clock.

Maintenance instructions

– The condition of the cutter, in particular of the cutting tool of the protective

devices and also of the shoulder strap must be checked before commencing

work. Particular attention is to be paid to the cutting blades which must be

correctly sharpened.

– Turn off the engine and remove spark plug connector when replacing or

sharpening cutting tools, and also when cleaning the cutter or cutting tool.

Cutting Tools

Employ only the correct cutting tool for the job in hand.

MS-245.4 U, MS-245.4 UE, MS-245.4 C, MS-245.4 CE with cutter blade, Nylon

cutting head

For cutting thick materials, such as weed, high grass, bushes, shrubs,

underwood, thicket etc. (max. 2 cm dia. thickness). Perform this cutting work by

swinging the Petrol Brushcutter evenly in half-circles from right to left (similar to

using a scythe).

This manual is related to the following products: