CM602all_EJM8AESM_Service Manual.pdf - 第450页

Allen key 3 mm Screw M4 2 pcs. Item Remarks Remove the theta guide. 7 Remove the ball screw from the holder. Remove the setscrews from the Z-axis ball-screw holder. 5 6 Machinery Part Replacement Remove the Z-axis motor …

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See "Theta Unit Removable"
1
Item Remarks
Cut the power and air supply.
3
4
Remove the theta unit.
2
Machinery Part Replacement
Li
g
ht
T
rans
f
er-
H
ea
d
A
ssem
bl
y
(8
-nozz
l
e
type)
Allen key 3 mm
Screw M4 x 4
Section 5-3-14
Remove the head assembly.
Separate the Z unit from the board.
See "Transfer Head Assembly
Replacement."
See "Separating the Z-Unit from the
Board."
Section 5-3-1
1
2
Dowel pin
EJM8A-E-SMA050311-A01-00
Page　5-3-11-2
Allen key 3 mm
Screw M4 2 pcs.
Item Remarks
Remove the theta guide.
7
Remove the ball screw from the holder.
Remove the setscrews from the Z-axis ball-screw holder.
5
6
Machinery Part Replacement
Remove the Z-axis motor from the ball screw to be replaced.
Li
g
ht
T
rans
f
er-
H
ea
d
A
ssem
bl
y
(8
-nozz
l
e
type)
Allen key 1.5 mm
Setscrew M3 2 pcs.
Wrench 17 mm
8
Allen key 3 mm
Screw M4 x 16L 2 pcs.
EJM8A-E-SMA050311-A01-00
Page　5-3-11-3
by its own weight.
Remove the ball screw.
Allen key 2 mm
Setscrew M4
Top of the screw: 0.5 mm
or less higher than the
screw hole.
Item Remarks
9
Allen key 2 mm
Setscrew M4
Top of the screw: 0.5 mm
or less higher than the
screw hole.
Check that the ball screw settles down
Machinery Part Replacement
Li
g
ht
T
rans
f
er-
H
ea
d
A
ssem
bl
y
(8
-nozz
l
e
type)
Fit the guide onto the ball screw.
Wrench 17 mm
0.2mm≦C≦0.8mm
10
11
12
Replace the ball screw.
Fit the holder, and secure it.
Gap C
EJM8A-E-SMA050311-A01-00
Page　5-3-11-4