Sampo Rosenlew HR46, Инструкция по эксплуатации

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Structure and functions of the forest harvester
Structure
The Sampo HR46 forest harvester has been designed to meet the demands set on the first
thinning of forest. It is light and easy to handle, small but with a wide operating range. It does
not damage standing trees and due to its light weight, it does not cause damage to the roots.
HR46 model has increased the efficacy of both work and drive hydraulics while improving fuel
economy and ergonomics by reducing recommended diesel RPM.
The forest harvester has articulated steering. The crane, gears and cab are located on the
front frame. The engine, hydraulic pumps and oil and fuel tanks are located on the rear frame.
The harvester is steered and tilted by means of a joint. The weight of the crane, which is the
outermost part of the harvester, is low down. Therefore the whole operating range of the
harvester can be utilised and it is easy to get close to the trees. A crane that is near and at
a low height does not block the view, and its route is visible even when harvesting from the
side. The inner rims of both the front and rear tyres go along the same tracks, which means
that the harvester is easy to handle even in dense forest as you only need to keep your eye
on the front. The harvester is extremely nimble as the turning angle of the frame joint is 50°
and the turning radius only 4.0 m. Depending on the tyres, the width varies between 2.5 – 3.0
m. Although the harvester has been designed to be used in first thinning, it also performs
efficiently when clearing larger trees off the driving tracks.
Harvester head
The harvester head cuts and fells the tree. After that the tree is delimbed and cut into
a pre-set length. When harvesting, make sure the engine revolutions are high enough to
produce sufficient working pump output to enable the required work movements. Too high
working revolutions are heavy on petrol. The Sampo harvester is supplied with alternative
harvester heads. The 3-hose system in hydraulics and the CAN route with its easily detachable
connectors used in controlling of the head make it easy to change heads. As a harvesting
computer is Motomit IT, and when necessary, an on-board computer with a GPS and a data
transfer function can be selected.
For further harvesting instructions, check the user manuals for the harvesting computer and
the harvester head.