CM602all_EJM8AESM_Service Manual - 第451页
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…
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.
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d
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-nozz
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type)
Allen key 1.5 mm
Setscrew M3 2 pcs.
Wrench 17 mm
8
Allen key 3 mm
Screw M4 x 16L 2 pcs.
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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
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ssem
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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
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Li
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T
rans
f
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H
ea
d
A
ssem
bl
y
(8
-nozz
l
e
type)
Secure the holder with the insertion-type setscrew.
Pull down the ball screw 25 mm.
From that point, move it up with a
tension gauge and check that the gauge
indicates Fu: 400cN or less.
For details, see "Z-axis Motor
Replacement."
15
Check the ball screw for slide resistance.
16
Put the Z-axis motor back on.
See Section 5-3-6.
Allen key 3 mm
Screw M4x16L 2 pcs.
Allen key 1.5 mm
Setscrew M3
Item Remarks
Machinery Part Replacement
Allen key 3 mm
Screw M4 2 pcs.
Tension gauge
Fu: 400cN or less
13
14
Fit the theta guide.
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