brevini ED2090MR20FL350B3 Manual De Instalación Y Mantenimiento página 38

PROBLEM POSSIBLE CAUSE
1) Incorrect motor as-
With motor
sembly
running the
2) Internal malfunction
output shaft
malfunction
doesn't turn
3) Brake blocked
1) Level too high
2) Incorrect breather
Oil leak from
position
breather during
3) Possible wear of
operation
multidisk brake seals or
hydraulic motor
1) Clogged breather plug 1) Unscrew and thorougly
Oil leak 2) Stiffening of seals due
from seals to prolonged storage
3) Damaged or worn seals 3) Contact a Service
1) No pressure to the
Disk brake
brake
doesn't brake
2) Worn brake pads
1) Gear unit incorrectly
installed
Excessive 2) Coupling structure
vibrations weak
3) Internal malfunction
Excessive
1) Internal malfunction
noise
1) No ventilation
Excessive
heating
2) High thermal power
1) No pressure to the
brake
Multi-disk
brake doesn't 2) Internal malfunction
release
3) No pressure in the
circuit
Multi-disk brake 1) Residual pressure in the
doesn't to look hydraulic circuit
1) Pressure delivered to
Multi-disk
brake
brake doesn't
brake 2) Worn disks
38
"S" Serie
SOLUTION
1) Check coupling be-
2.5.
tween gear unit!motor
2) Contact a Service
2.5.4.2 Installation of gear unit with FS output
Center
3) Check hydraulic circuit
- Glean and degrease the internal surface of the gear unit shaft
1) Lower oil leve
and machine shaft.
- Lubricate the coupling housing (fig.1 point A).
2) Check breather position
- If the coupling is new there is no need to disassemble it and
grease it.
3) Contact a Service
- If the coupling is being overhauled, disassemble it and grease
Center
the zones marked "C" (see fig. 1).
- Remove cap "Z" (see fig. 1) in order to bleed off the air when
clean the plug
fitting the shaft.
2) Clean the area and
- Fit the coupling on to the gear unit without tightening the bolts,
check for leakage again
leaving cap "Z" loose (see fig. 1).
after a few days
Center
1) Check hydraulic circuit
2) Replace brake pads
1) Check the connection
and in-line configuration
2) Strengthen the struc-
ture
3) Contact a Service
Center
1) Contact a Service
Center
1) Remove fairing
2) Insert oil circulation
1) Check connection to
hydraulic circuit
2) Contact a Service
Center
3) Check hydraulic circuit
1) Check hydraulic circuit
- If the gear unit is in a vertical working position with the output
1) Check hydraulic circuit
shaft underneath, make sure the coupling can't come out and
2) Contact a Service
fall; in any event, never tighten the coupling bolts before fitting
Center
the shaft into its housing.
- Fit the gear unit on to
the machine shaft or
vice versa (excessive
axial force shouldn't be
necessary); there should
be no interference when
assembling, so make
sure
gear unit are properly
aligned.
- Refit cap "Z" (see fig.
2), then position the
coupling (see fig. 2 point
A)
- Using a torque wrench,
tighten all the bolts
gradually in a circular
sequence (i.e. not in a
diametrically
sequence) until they are
all tightened to torque
value "T" in table N° 1.
- Set the torque wrench
to 3 - 5% above the
setting given in table N° 1, then tighten the coupling bolts to the
new setting.
INSTALLATION:
C
A
B
B
Fig. 1
the shaft and
opposite
D
Z
B
B
Z
A
Fig. 2