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OM5055_US
5.4.
WEEKLY
CHECK
The cleaning must be done weekly also to better fi nd liquids leaking or loosened
tightening.
Any intervention has to be carried out by:
x
With the diesel engine running, check the value of the hydraulic pressure by sending
a stabilizer to the end of the stroke during the return phase and checking if this
corresponds to the plate value shown in chapter 1.
x
Check the correct tightening of the chassis fi xing screws (see table).
x
the integrity of the extension
boom chains and the connections (belleville washers,
nuts and cotter pins)
x
Check the tracks tension, (only for the tracked version). If they’re infl ected, it is
recommended to put them under tension by using a greasing pump (6bar), as shown
in Fig. 5.3. With the machine raised, adjust the yield of the track to 10-15 mm (Fig
x
5.3a).
x
Check the level of the engine fumes and its noise level.
x
Check the battery terminals and grease the positive pole. There must be no
encrustations on the poles.
x
Check the correct operation of the emergency electric pump (see chapter 4).
x
Check the instruction plates are legible and not damaged, if not substitute them.
x
Check that the ground and cage controls are functioning. Using the controls the
movement must be correct.
x
Grease all the articulations arms, cylinders, stabilizers and the cage. Before applying
the greasing pump, clean the greasers and then keep on greasing until the old grease
comes out.
x
Execute all the checks as shown in the previous paragraph
x
the right operation of the block valve on the boom lifting cylinder in this way:
1. fi ft up the boom till about 10°
2. switch off the engine and act on the lever of the boom lifting hydraulic distribu-
tor, alternately activating the boom lifting and lowering control; make sure that when
pushing and pulling the distributor lever, the arm does not drop
Inform the responsible personnel about any failure encountered.
After any intervention check all the machine emergency functions.
Fig.5.3
Fig.5.3a
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