CM602all_EJM8AESM_Service Manual.pdf - 第613页

Machinery Part Replacement Remark Turn off the power and air supply. Remove the head. See "12-Nozzle-Head-Unit Replacement." Section 5-10-1 Se p arate the θ -unit. See " θ -Unit Removal." Section 5-10…

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Machinery Part Replacement
This section describes the procedures for replacing the spline shaft.
Tools
Phillips screwdriver #1
Phillips screwdriver #2
Torque screwdriver
Allen key 2.5 mm
Allen key 4 mm
Nipper
Magic marker
Barrierta IEL/V
Tweezers
MP Grease 2S
Jig
Insertion jig (FM-1737)
5-10-2 Spline Shaft Replacement
12-Nozzle Head Unit
　
　　　 When there is no problem with the bearing case, replace the spline shaft only.
Caution
Dange
r
Warning
EJM8A-E-SMA051002-A01-00
Page　5-10-2-1
Machinery Part Replacement
Remark
Turn off the power and air supply.
Remove the head.
See "12-Nozzle-Head-Unit
Replacement."
Section 5-10-1
Se
p
arate the θ-unit.
See "θ-Unit Removal."
Section 5-10-8
Be careful; the spring jumps out.
M3 nut
4
Remove the upper bearings from the spline shafts.
12-Nozzle Head Unit
1
2
3
Item
1
2
D-PIN
Pin position
M5 x 12L (4 pcs.)
Put the shaft through the axis so that
the spring is held cnotracted.
Be sure to use a rod.
Using an Allen key or an equivalent
tool may leave a dent on the end of
the spline-shaft hole.
The ball-spline shafts should be
extended so that the ends of the
shafts do not touch any other parts
when mounting the unit on the θ-
axis.
EJM8A-E-SMA051002-A01-00
Page　5-10-2-2
Machinery Part Replacement
Remark
12-Nozzle Head Unit
Item
Remove the collar and the bearing from
the s
p
line shaft.
7
Pull the spline shaft out of the bearing
case. * To remove the bearing case, remove
all the spline shafts.
All the removed spline shafts but the one
to replace should be put back in the
bearing case later. Keep them in a safety
place.
8
Remove the bearing case.
• Loosen the four ③ (M3x6L) bolts, and
remove them. Remove the ⑥ plate.
• Remove the (1) bearing and the (5)
bearing case.
M3×6L
5
6
B
A
A
1
2
3
4
2
5
6
7
8
A
: Housing
B: Bearing case
①
(1)
(2)
(3)
(4)
(6)
(1)
(5)
A
Convex
side: A
Concave
side: A
Shorter:
A
Convex side:
Opposite to A
cegh:Be careful of
direction.
A
Part name Model Qty.
Hexagonal nut M3 Type 1
Flat small round washer M3
Ball spline (Spline shaft)
θ
-axis housing
A
B
* A assembled
*P001
(12)
1
Motor
EJM8A-E-SMA051002-A01-00
Page　5-10-2-3