Laski ATR 90, Руководство по эксплуатации, Страница: 20 / 29

TRENCHER
ATR 90
20
- Avoid going with the carrier over contingent obstacles that could cause its
damage.
- Avoid going or working on slopes with inclination exceeding the permissible
limit of the carrier.
- Any transport to site or dislocation on site is allowed only with the chain drive
off.
- Allow the carrier engine to run at no more than fast idle speed to warm up the
engine and hydraulic oil (especial in winter time) to reach its required oil
pressure and flow rate.
- Start working with the machine and press the chain bar slowly into the trench
to reach the required trenching depth. To reach the required depth you can
move the carrier also slightly back.
Attention! While trenching, avoid going forward without keeping
an eye on the chain motion.

While pressing the chain bar into the soil, avoid any carrier motion
forwards.

It is always necessary to adapt the carrier speed forwards to on-site
conditions, particularly to real properties of the soil. Local conditions
and soil properties may considerably differ. First set the carrier speed
slow and then speed up slowly, never conversely.

While trenching, try to keep the engine speed constant resp.
according to current machine load (listen to operating noise).
o
It is not possible to repair (renew) the already finished trench
by going through the trench repeatedly because of the soil
already put aside.
o
We recommend to trench on level grounds or downhill only.
o
Avoid working along the hill contour. It may come to
undermining the slope – any angle correction of the jib is not
possible.
o
Observe the working area all the time. If any person,
children or animals approach while trenching, then stop
working immediately.
o
Should the trench line be straight only, first mark the
required travelling direction on the ground in order to
observe and to keep an equal distance of the carrier wheels
from the marked line.