Bridgeport Interact 2 - Vari-Drive Belt Replacement

NOTE:
If
step
(1)
was done
correctly
tbe
drioe belt
(5025668)
will
ride
towards
tbe outside
edge of tbe
pulleys
(7012642
and 7012643).
If tbis
condition
does
not
exist,
reassemble
tbe
bead and
repeat
step 1.
6.
Remove
retaining
ring
(8300610).
7.
Loosen the socket
ser screw
and
remove
pulley
(7012643).
Be
prepared
for the
pulley to
spring
up approxim
ately
ahalf
inch
when
the socket
screw
is
loosened.
8. Compress
t}re lower
pulley
(70126+2)
on the
motor
shaft
until
the
oressure
is
relieved
from
the
rltaining
ring
(8050084),
and
remove
the
ring.
Lift the
lower
rulley
assembly
(7012642)
(comprisingp"Uey
IAOZS
642),compression
spring
(8025661)
.-i'., collar
(8025664))
off
the
motor shaft.
9.
Support
the
motor
and remove
the
t'wo
screws
(8301930)
that secure
the motor
to the
variable
speed
housing. Remove
the motor
from
the
housing.
CAUTION:
Tbe motor weigbs
approximately
28
kg
60lb).
Take
aPpropriLte
precautions
to
preoent
equipment damage
and
possible
personal
iniury.
NOTE
Reassembly
witl be dccomplisbed
by
reoersing
tbe disassembly
procedure. Retaining
ring
(8050084)
is
easily damaged
on remoaal
and
may
need replacement.
Difficulty
may be
encountered wben
assernbling
pulleys. First work
tbe
belt
as
far
forward
towards
tbe cente
of
tbe
drioen
pulleys
(5025533
and
8025534)
as
possible. Next,
work
tbe belt
as
far
as
possible
towards
tbe
peripbery of tbe driae
pulleys
(7012642
and
7012643).
Witb band
pressure
and
a small
plastic
mallet,lower
pulley
(7012643)
until
retdiningring
(5300610)
may
be assembled.
8.2.4 VariDrive
Belt lacement
1.
With
rhe
moror
running,
adjust
the variable
speed
control
to
thc
top of
the speed
range.
The
speed
changer should
be
adjusted into
the
red
zone
and
rintil
the mechanical
stop
in
the speed
changer
is reached.
This adjustment
may
be made
in either
the
high or
low speed
range.
2. Shut
down the
motor.'
n
3.
Disconnect
power to
the
machine.
4.
Remove the
motor
pulley cover
(8050195).
5.
Remove
retaining
ring
(8300610).
6.
[,oosen socket
ser
screw
and
remove
pultey
(7012643).
Be
prepatGh8or
the
pulley
to
spring
up approximately
half
an inch when
the socket
set screw
is
loosened.
7.
Remove
the
top
bearing
cry
(8O25601)
and
the
two
screws
(S301935)
and two
bushings
that
secure
the speed
changer
plate
(8025507)
to the
bearing
housing
(8025505).
8. Remove
the two
screws
under
the speed
changer
dial that secures
the speed
changer
housing
(8050176)
to
the
belt housing
base
(8050163).
9.
Remove
rhe
screws
((2)
830014+
(l)
AiOOf
g3)
securing
the belt
housing
(8050164)
to the
belt
housing base
(3050163).
The belt
housing
is now
held in
place by two
taper
pins.
8-5