Bridgeport Interact 2 - Cylinder Gasket Removal; Packing Cup Replacement; Air Assist Pedestal

14.
Adjust the
Y axis belt tension as
per
Section 7.1.2.
15. Reset the software limits as
per
Section
7
.6.7 .
7.5
AIR ASSIST
PEDESTAL
7
.5.1
Removal
NOTE:
Due to tbe requirement
for tbe cylinder to be air tigbt, tbe cylinder sleeoe
is
considered
an
integral
part
of tbe
pedestal
assembly
and is
remoaed
as a
unit.
1. Raise the knee to
a
sufficient
height
(not
the
total trarrel)
to
allow
access to the
pedestal and
elevating
nut.
Lock
the knee in that position
and in addition support
the knee
with
a rope
sling.
CAUTION:
Tbe assembled knee weigbs
8't5 kg
(i930lb).
Use aPpropriate
care to
preoent
equipment
darnage and
personal
injury.
2. Discharge the
air
from
the cylinder and disconnect the air hose and
lubrication line from the
top of
the
pedestal.
3.
Remove the screws securing the leadscrew nut mount
from
the pedestal
4.
Hoist the
knee
to
full
travel height,
pulling
the leadscrervr/ out of the
pedestal along
with
the
oacking
cup,
packing
retainer, leadscrew
bumper, thrust bearing
and
bearing
retainer.
5.
Remove
the two
pedestal
mounting
screws and remove the
pedestal from the base
7 .5.2 linder Gasket Removal
1. Raise
the
knee
to a
position
close
to the topmost
working
position.
Lock
the knee in
that
position
and in addition support the knee
with
a rope sling.
CAUTION: Tbe
assembled knee ueigbs 875 kg
(19301b).
Use dppropridte
care to
preaent
equipment
damage and
personal
injury.
2. Remove the
pedestal
mounting
screws and handwind the
elevating
screw
to
withdraw
the
pedestal from
the
base
to
gain
access to the bottom
fixing
screws.
3.
Remove
the screws securing the cylinder bottom
cover
and replace the
cylinder
cover
gasket.
4.
To
assemble reverse the
disassembly
proc(dure.
7
.5.3
Packing
Cup
Replacement
1
.
Remove the pedestal
as
described
in Section 7
.5.1.
2.
Remove
the screws securing the packing retainer, remove
the retainer
and
packing.
3.
Replace
with
Bridgeport
supplied
packing
(BM
part
number 2152721).It is
important that
this
packing
has
been soaked in a
mineral
based lubricant
(Mobil
DTE 24 or equivalent)
for
at least 12 hours
prior to assembly.
Care must be
taken
to ensure
that the
coil spring is
in
position during
assembly.
7-72