2500_Users_Manual- - 第250页

Repair and Replacement Procedures 9. Apply a small amount of purple Loctite on the outer surface of the new nut where it contacts the carriage during operation. 10. Twist the new anti-backlash nut into place and carefull…

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Repair
and
Replacement
Procedures
6.
Use
a
9/64-inch
hex
wrench
to
loosen
the
four
hex
screws
holding
the
front
and
rear
carriage
shafts
to
the
left
end
plate.
Note:
Have
an
assistant
hold
the
lead
screw
and
shafts
during
the
next
steps.
7.
Loosen
the
two
main
plate
corner
screws
and
lift
the
main
plate.
8.
Use
a
hex
wrench
to
remove
the
two
screws
holding
the
left
end
plate
to
the
main
plate.
9.
Lower
the
main
plate
and
slide
the
end
plate
off
the
shafts
and
lead
screw.
10.
Twist
the
lead
screw
until
it
pulls
away
from
the
beam
traverse
motor.
Walk
the
lead
screw
through
the
beam,
then
slide
it
away
from
the
2500
through
the
left
endplate.
Note:
Make
sure
the
anti-backlash
nut
remains
intact
when
you
remove
the
lead
screw.
1
1.
Reinstall
the
lead
screw
and
all
of
the
removed
components.
12.
Lubricate
the
screw
as
described
on
page
5-63.
Replacing
the
Anti¬
backlash
Nut
If
the
anti-backlash
nut
is
damaged,
follow
the
steps
below
to
replace
it.
1.
Remove
the
lead
screw
(as
described
in
steps
1
through
10
on
page
7-24)
and
carefully
set
it
aside.
2.
Use
a
5/64-inch
hex
wrench
to
remove
the
two
screws
that
hold
the
limit
bar
to
the
beam
shafts
(see
Figure
7-17).
3.
Pull
the
beam
up
and
away
from
the
beam
shafts.
Leave
all
of
the
cables
connected
and
carefully
set
the
beam
aside.
4.
Use
a
9/64-inch
hex
wrench
to
remove
the
four
screws
that
hold
the
front
carriage
shaft
in
place.
Note:
There
are
two
9/64-inch
hex
screws
at
the
front
of
the
left
end
plate
and
two
9/64-inch
hex
screws
at
the
front
of
the
right
end
plate.
5.
Support
the
carriage
while
you
slide
the
front
carriage
shaft
through
the
carriage.
Set
the
front
carriage
shaft
aside.
6.
Use
a
9/64-inch
hex
wrench
to
remove
the
four
screws
that
hold
the
rear
carriage
shaft
in
place
(this
is
similar
to
step
4,
above).
7.
Support
the
carriage
while
you
slide
the
rear
carriage
shaft
through
the
carriage.
Set
the
rear
carriage
shaft
aside.
8.
From
the
left
side
of
carriage,
insert
the
anti-backlash
nut
removal
tool
into
the
anti-backlash
nut
and
twist
it
counterclockwise.
As
you
twist,
the
anti-backlash
nut
will
protrude
from
the
right
side
of
the
carriage.
Guide
it
out
with
your
hand.
Note:
You
may
need
to
use
a
wrench
to
break
the
anti-backlash
nut
free.
ProMaster
2500
User
Manual
7-25
Repair
and
Replacement
Procedures
9.
Apply
a
small
amount
of
purple
Loctite
on
the
outer
surface
of
the
new
nut
where
it
contacts
the
carriage
during
operation.
10.
Twist
the
new
anti-backlash
nut
into
place
and
carefully
re-assemble
all
of
the
disconnected
components.
Replacing
the
Beam
Gasket
If
there
are
air
leaks
in
the
beam,
follow
the
steps
below
to
replace
the
beam
air
channel
gasket.
1.
Turn
off
the
2500,
remove
the
power
cord,
and
disconnect
the
air
supply.
2.
Disconnect
the
vacuum
sensor
cable
from
the
vacuum
sensor
switch.
3.
Disconnect
the
four
solenoid
cables.
4.
Use
a
3/32-inch
hex
wrench
to
remove
the
solenoid
cable
connector.
5.
Disconnect
the
beam
head
rotation
motor
cable.
6.
Disconnect
the
three
optic
cables.
Note:
Write
down
the
cable
positions
before
you
cut
the
tie
wraps
that
hold
the
cables
in
place.
7.
Use
a
1/8-inch
hex
wrench
to
remove
the
two
screws
that
hold
the
cable
harness
to
the
right
side
of
the
beam.
8.
Disconnect
the
gray
air
line
and
the
black
vacuum
line
from
the
two
quick
connects,
noting
their
location.
9.
Use
a
5
/
64-inch
hex
wrench
to
remove
the
two
screws
that
hold
the
limit
bar
to
the
beam
shafts
(see
Figure
7-17).
7-26
ProMaster
2500
User
Manual
2287-1
VACUUM SENSOR CABLE
CABLE HARNESS GUIDE
BEAM TRAVERSE
MOUNTING BLOCK
RIGHT END PLATE
LIMIT BAR
BEARING COVER PLATE
REAR CARRIAGE SHAFT
FRONT COVER SHAFT
VACUUM SENSOR
SWITCH
AIR CYLINDER
PIN SCREW
(1 on each side)
Repair
and
Replacement
Procedures
Figure
7-1
7
Beam
Cable
and
Switc
力
Locations
10.
Use
a
6/64-inch
hex
wrench
to
remove
the
two
screws
that
hold
the
air
cylinder
pin
in
place.
11.
Hold
the
beam
in
place
while
you
use
a
3/32-inch
hex
wrench
to
gently
push
the
air
cylinder
pin
through
the
beam.
12.
Gently
lift
the
beam
up
and
away
from
the
beam
shafts.
13.
Remove
the
two
1/16-inch
set
screws
in
the
beam
motor
drive
pulley.
14.
Disconnect
the
beam
motor
cable.
15.
Remove
the
single
3/32-inch
hex
mounting
screw
in
the
beam
head
pulley.
16.
Pull
up
the
beam
head
pulley
and
remove
the
beam
rotation
belt.
17.
Remove
the
motor
drive
pulley.
18.
Use
a
1/16-inch
hex
wrench
to
remove
the
four
motor
mounting
screws,
then
remove
the
beam
head
rotation
motor.
19.
Use
a
3/32-inch
hex
wrench
to
remove
the
two
air
quick
connects
(insert
the
hex
wrench
into
the
quick
connect
openings).
20.
Use
a
3/32-inch
hex
wrench
to
remove
20
screws
in
the
baffle
plate.
21.
Use
a
1/4-inch
hex
wrench
to
remove
the
three
remaining
pan
head
screws
in
the
baffle
plate.
22.
Peel
off
the
old
air
channel
gasket.
23.
Place
the
new
air
channel
gasket
onto
the
baffle
plate.
Note:
Make
sure
the
air
channel
gasket
does
not
block
any
air
and
vacuum
holes.
ProMaster
2500
User
Manual
7-27