bonomi A4M001, Инструкция по безопасности и эксплуатации

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Hydraulics
Mito
QTH 6–10 GPM
18
12.
Operate with the knob, T as indicated in 10/L and tension
the chain respecting the indications given in the previous
point 4.2
13.
Position the closing cover 11/B, and tighten it with the
11A, and 11/B1 screw,
4.4
Installing Guide Bar (B) see figure 11, page 7, and
follow these steps.
1.
Unscrew the 2 front screw and the nut 11/A on the
back of the machine, remouve the cover. The guide bar
will be released and removable 11/D
2.
Using the tension knob, T bring the sprocket back to its
initial position as shown in fig (11/C1 to 11/C on page
7)
3.
Replace the new bar by positioning it in the
predetermined position of the machine body itself fig.
11/D
4.
reposition the Cover and temporarily tighten the nut on
the back, 11/A making sure that the position of the bar
is adequate to insert also the new chain
5.
Proceed with the greasing of the machine using the
special greasers on the back of the machine fig 12/D
6.
continue the positioning and tensioning operations of
the chain as indicated in the previous points
7.
See page 13 for bar maintenance, control the correct
movement of the head bearing and use pressure
bearing grease to increase the life of the bar.
4.4) Mounting and replacing the sprocket
The back main sprocket wears out and needs to be
periodically replaced; replacement takes place usually every
2 to 3 chain replacements. See figure 12:
DANGER: Before starting, make sure the
chainsaw is unplugged from the power
source(M).
 Make sure to be in a safe place when performing
this operation. Place the chainsaw on a stable
surface;
 unscrew and remove the side cover screw (11/A,
11B1, 11B) ;
 remove the side cover of the machine fig 6 page 5
 Remove the retaining spring fig 12/A page 9 and
remove the damaged sprocket (12/C);
 Clean the housing area of the shaft, leaving a veil
of oil,
 Replace the old sprocket
 Proceed backwards by fitting the new sprocket, the
retainng spring, as shown in figure 12/A
 Proceed accordingly with the operations described
previously of replacing the chain and or the guide
bar.
5
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5.1) Follow those steps:
To perform a cut, after having carefully read the paragraphs
above and having checked grounding:
 with unplugged chainsaw, make sure the chain is
correctly tightened;
 connect the hydraulic chainsaw at the power-pack
hose with the 2 jack P1 an P2;
 Turn on the valve (H) letting water in your MITO
machine will inflate the water in the bar and on the
chain pushing the command handle (fig 3 – N) this
handle is pushed automatically from your hand,
when you will start to run the chainsaw pulling the
second command handle (fig 4 O);
 Firmly hold the saw with both hands as shown in
figure 5;
 Make sure the chain is not in contact with anything
and then switch on the saw (N). In order to avoid an
unintentional start, the switch is equipped with a
lock off system. This means that you need to follow
two steps (N and O) to switch on the chainsaw as
shown in figure 3 and 4;
5.2) Cutting methods
 Lay out the cut with a marker: the cut must be
straight;
 To start, plunge the nose of the cutting bar straight
into material till you reach the desired cutting depth.
Keep the bar perpendicular to the wall;
 Rock the saw when cutting (figure 15). This leads to
leverage effect that makes cutting easier.
 Do not apply too much feed force. A good feed
force leads to best cutting performance, excessive
feed force leads to lower RPM and lower
performance;

Do not perform non-straight cuts and do not tilt side
by side the chainsaw: these would lead to motor
overload and damage bar and chains;
 To stop, release the switch (N);
 Warning : the chain keeps running for some
seconds after the switch has been released;
 Close the water valve (H);
5.3) Horizontal cuts
 You can perform either horizontal or vertical cuts.
When cutting horizontally make sure the work piece
does not press on the bar: use the product as
shown in figure 17. Do not use the product with
hand downward as shown in figure 16. When
cutting an opening such as a window perform first
horizontal cuts and then vertical ones.
5.4) Cutting reinforced concrete
 When cutting reinforced concrete rock the saw as
shown in figure 15 in order to keep cutting concrete.
This avoids that the segments gets polished
reducing cutting effectiveness;
 Cutting rebar only is not allowed and sure you
compromise the chain functionality and his integrity
up to braking it.
5.5) Re-Sharpening the segments after cutting still bar
for a long time

If you experience reduced cutting effectiveness for
polished segments, re-sharpen the segments using
a sharpening stone (not included). Make sure the
stone is properly fastened: see stone manufacturer
directions. Perform re-sharpening with water,
cutting a 1" cut in the sharpening stone.