Epec 4W30, Инструкция по эксплуатации

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Instructions for use Epec 4W30 18
(C) Epec Oy Seinäjoki Finland
4 GRAPPLE FUNCTIONS
4.1 Knives Open
When pressing the key "Knives open", the delimbing knives are opened
and remain open as long as the key is pressed. When the key is
released, the delimbing knives are closed. If there are lock valves in the
delimbing knives, then delimbing knives are closed when sawing,
feeding forward or pressing the button "Grapple closed" is carried out.
4.2 Tracks Open
When pressing the key "Tracks open", the tracks are opened and
remain open as long as the key is pressed. When the key is released,
the tracks are closed. Also the back knife is opened and closed with the
tracks, except when the back knife is opened by pressing the "Back
knife" key.
4.3 Back Knife
−
When the key "Back knife" is pressed, the back knife moves from one
extreme position to another. When the back knife is open and the key
is pressed, the back knife closes, and when the key is pressed once
more, the back knife opens.
−
If the back knife is opened with "Back knife" key, it will be closed only
when pressing the "Back knife" key or the "Grapple closed" key. If the
back knife is opened with the keys "Tracks open" or "Grapple open",
then the back knife will be closed also when the tracks are controlled
to close.
−
If the back knife is opened with the "Back knife" key and it has lock
valves, then the back knife is closed when sawing or pressing the
button "Grapple closed" is carried out.
4.4 Urea
−
Urea is in use, if the urea feeding time (setting K41) is higher than
zero. Urea is activated by pressing the "Urea" key before sawing.
−
Saw motor and urea pump are started simultaneously. After urea
delay (K42) the valve is controlled with pulses. After a certain number
of pulses coming from the saw position indication, the urea valve is
opened for the pre-set time (
urea feeding time K41). Valve opens
again when sawbar has moved sufficiently (valve stays open if
enough pulses are coming from the saw position indicator before
valve is closed). This procedure continues until sawing is completed.