AVANT 755, Руководство оператора

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32
755/760i Service and maintenance instructions
12-14 Adjust and change the slide pads
on telescopic boom
The telescopic boom is equipped with replaceable slide
pads. At the lower end of the outer boom there are
nylon slide pads. 1, 2, 3 and 4. In addition, there are four
aluminium-bronze alloy slide pads (nos. 5,6,7 and 8), at
the upper end of the inner boom. All slide pads can be
replaced, and the nylon slide pads on the outer boom can
also be adjusted. This way the natural wear of the slide
pads, caused by the use of the telescopic boom, can be
compensated.
Slide pads 1 to 4
can be adjusted
by mounting thin adjustment
sheets between the boom and the
slide pad. Extend the telescope
almost completely and press
the boom against the ground, it
is the easiest way to mount the
adjustment sheet under slide
pad no. 2 . However, if there is
substantial wear in the slide pads
it is advisable to replace both pad
no. 1 and 2.
Slide pads 5 to 8 at the upper
end of the inner boom last very
long in normal use. Slide pads 5,
6, 7 and 8 should be checked after
every 400 operating hours and
replaced at least after 800 hours.
Checking is made by taking the
inner boom completely out of
the outer boom. If the pads have
worn so much that they are in
level with the boom, or excessive
boom play can’t be removed by
adjusting slide pads 1 to 4, replace
all slide pads.
Part nos. for the slide pads are:
Slide pad 1 and 2: A48339
Slide pad 3 and 4: A412868
Slide pad 5 and 6: A47922
Slide pad 7 and 8: A48343
Washer under slide pads 5 and 6: A47941
Adjustment sheet, short: A412971
Adjustment sheet, long: A48014
15. Calibration of load sensor
The load sensor must be calibrated in case one adds or
removes more than two AVANT rear weights (+/- 65 kg)
on the machine. Calibrating happens as follows:
1. Mount the amount of rear weights with which you are
going to use the loader.
2. Remove the engine cover plate and the lower left side
rear cover plate.
3. Lift something so heavy with the loader that the rear
wheels lift off the ground.
4. Open the screw pointed by the arrows (see picture)
with two 13 mm keys. As the two steel strips come in
contact, tighten the screw.
5. Lower the rear wheels back to the ground and mount
the cover plates.
6. Check function of the load sensor.
NOTICE: The rear of the loader can not be lifted with
a jack in order to do the calibration. The rear wheels
must be lifted by using the loader boom in order that the
adjustment can be done correctly.
16.-17. Clean air filter element
1. Squeeze the rubber vent
on the filter housing cover
to drain water and dirt
from the filter.
2. Wipe the outer surface of
the air filter housing clean
before opening the filter.
3. Remove the filter
cartridge
4. To clean the filter, tap the closed end of the filter
gently against a flat, clean surface. Never use
compressed air to clean the filter!
5. Do not remove the inner element.
6. Clean the inner components of the filter housing with
a damp cloth
7. Reinstall cartridge, ensure proper tightness and sealing
of the filter and the housing cover.
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