CM602all_EJM8AESM_Service Manual - 第423页
Machinery Part Replacement Remarks Switch off the main power and air supply. from 0.49MPa to 0.55MPa Remove the head assembly. Refer to "Head Assembly Replacement." Section 5-3-1 Separate the theta u…
Machinery Part Replacement
This section describes the procedures for replacing the theta belt.
Tools
Allen key 1.5 mm
Allen key 3 mm
Allen key 4 mm
Jig
FM-1056
Theta Adjusting Jig
Tension gauge
L
ight Transfer-Head Assembly (8-nozzle type
)
5-3-5 Theta Belt Replacement
Caution
Dange
r
Warning
Assembly
A
d
j
ustment
85min.
Teaching
77min.
TotalTime Weightof
Part
Removal
Disassembl
y
60min.
222min.
9.1kgs
EJM8A-E-SMA050305-A01-00
Page5-3-5-1
Machinery Part Replacement
Remarks
Switch off the main power and air supply.
from 0.49MPa
to 0.55MPa
Remove the head assembly.
Refer to "Head Assembly Replacement." Section 5-3-1
Separate the theta unit from the head assembly.
Refer to "Theta Unit Removal." Section 5-3-13
Remove the belt tension.
Allen key 3 mm
Screw M4 2 pcs.
4
L
ight Transfer-Head Assembly (8-nozzle type
)
Item
2
3
1
1
2
Dowel pin
EJM8A-E-SMA050305-A01-00
Page5-3-5-2
Machinery Part Replacement
Remarks
L
ight Transfer-Head Assembly (8-nozzle type
)
Item
Remove the theta motor and the belt.
Allen key 3 mm
Screw M4 2 pcs.
6
Position the nozzle holders in the theta
direction. Position the nozzle holders so that the
set-screws of the nozzle holder will face
outwards. Check by eye.
The set-screws of Nozzle
Holders 1 to 4 should be
positioned opposite those
of Nozzle Holders 5 to 8.
Re
p
lace the belts.
7
5
8
Lower belt
Motor gear
Tension pulley
FWD
Upper belt
Motor gear
Tension pulley
FWD
1
7685
4 23 1
7685
4 23
NG
OK
Set screws
Part No. Part Name
Model Qty.
Pulle
y
(
Ball spline/
g
ear
)
Small round flat washer
Hexa
g
on-hole screw
Thick washer M4
Hexa
g
on-hole screw
Nut
Adjuster B
Adjuster A
Theta
-
axis motor gear
Theta
-
axis motor base
Theta
-
axis motor housing
Timing belt
*
Flat plate
*
Bent plate
EJM8A-E-SMA050305-A01-00
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