14
USE OF RUBBER TRACKS
Avoid excessive manoeuvring on hard, stony and uneven surfaces such as rock, gravel, etc.
Avoid keeping the rubber tracks in direct sunlight for more than 3 months.
Avoid excessive steering manoeuvres on asphalt and concrete surfaces since these cause
excess pad wear. Avoid driving on asphalt surfaces when their temperature exceeds 60°C
since this causes both excess pad wear and damage to the asphalt surface.
Manoeuvres with a loose track on an irregular surface can cause the pad to detach and /or
damage to the rubber track.
Rubber tracks are designed only for use on soft terrain, not for hard and abrasive surfaces
such as sand, stone, minerals, etc. Use of rubber tracks on these surfaces can cause
premature wear and deformation hence reducing the useful life of the tracks.
Avoid contact between sharp concrete edges etc. and the rubber track.
Fuels or synthetic oils must never come in contact with the rubber track. If this does happen
then they must immediately be cleaned.
Avoid using rubber tracks in marine and seaside environments since saline air or salt in
general corrode adhesion between rubber and metal inner core.
OPERATING INSTRUCTIONS.
(If radio control, refer to next section for controls
operation)
Do not use or attempt to start the stump grinder without the cutter guards, engine covers and
access covers securely in place. Failure to do so may result in personal injury or loss of life.
Start the stump grinder following the correct starting procedure. Check that the engine is
running smoothly. If it is not stop and investigate. Once the engine is warm you are ready to
start tracking. Pull the cutter lift lever backwards to ensure that the
cutter arm is at its highest position.
Use the track control levers at the rear of the machine to drive the stump grinder in the
desired direction.
Pushing both track levers forwards at the same time drives the stump grinder forwards.
Pulling both track levers backwards at the same time drives the stump grinder backwards.
Pushing the right track lever only turns the machine to the left.
Pulling the right track lever only turns the machine to the right.
Pushing the left track lever only turns the machine to the right.
Pulling the left track lever only turns the machine to the left.
With practice a combination of these lever movements can be used to gain accurate
proportional driving and steering control.
Position the stump grinder directly in front of the stump with the cutter directly over the front
edge of the stump.
Before starting the stump grinding operation check the area around the base of the tree
stump is clear of any foreign objects such as cloth, string, plastic, glass, rubber, stones,
bricks, metal, or any other materials that could be picked up and ejected by the cutter.
