444CEMM1 - 第123页
Page 1-61 REGULAR MAINTENANCE 1 1-5 Check Every 560 Hours (Once a Month) 1-5-1 Cleaning the Lubricating the T ransfer Head Clean and lubricate the nozzle shaft support bearing and check the vacuum pressure at the nozzle …
Page 1-60
Check Every 140 Hours (Once a Week)
1-4-8 Cleaning the Forced-Chip-Ejecting Unit
444C-E-MMA01-A08-04
1. Turn OFF the power supply.
2. Disengage a catch, open a cover, and
remove a brush.
3. Shake off the chips and foreign bod-
ies adhering to the brush.
4. Put the brush back on, close the
cover, and engage the catch.
5. Remove the chips adhering to a mag-
net.
6. Put it back into its original position
with the magnet surface facing up-
ward.
R
E
L
E
A
S
E
T
R
I
P
O
F
F
O
N
R
E
S
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T
5 minutes
Required time
Tools
∗ The forced-chip-ejecting unit is standard equipment for DS, but an option for DH.
Brush
Catch
Magnet
Cover
444C-465E
444C-466E
Page 1-61
REGULAR
MAINTENANCE
1
1-5 Check Every 560 Hours (Once a Month)
1-5-1 Cleaning the Lubricating the Transfer Head
Clean and lubricate the nozzle shaft support bearing and check the vacuum pressure at the nozzle
tip. Dirt on the nozzle shaft support bearing may cause wrong operation and pickup. Leakage in the
air pass will also cause wrong pickup.
∗ For DU/DHU specifications, it is necessary to remove the feeder base cover for the maintenance.
“1-2-3 Setting and Removing the Feeder Base Cover (Only for DU/DHU Specifications)”
1. Cleaning and lubricating the nozzle shaft support bearing
1. Ensure that the safety cover is
closed, and turn on the servo switch.
2. Select the operation table.
3. Press
UNLOCK
+ Head mainte posi .
• The transfer head moves to the maintenance
position.
4. Turn OFF the power.
∗ Lock the main switch. A worker should carry
the key. (DU/DHU only)
5. Open the cover at the lower right of
the machine rear side.
∗ Remove the screw by using a Philips driver.
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444C-E-MMA01-A08-04
444C-419E
Tools
Philips driver, cotton bud, syringe, and vacuum gauge
Required time 30 minutes
2
1
OFF ( )
ON ( )
SERVO
R
E
L
E
A
S
E
T
R
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P
O
F
F
O
N
R
E
S
E
T
444C-401P
444C-457E
444C-EEn-MpMmMm-011
Page 1-62
Check Every 560 Hours (Once a Month)
6. Discharge the air.
Close the main air valve.
Pull up the regulator knob, and turn it to the left
until it stops.
Make sure the exhaust sound disappears and
the gauge shows 0 MPa.
Lock the valve lever. A worker should carry the
key. (DU/DHU only)
7. Open the safety cover.
8. Lower the nozzle holder.
9. Clean the bearing and groove by
using a cotton bud.
To the next page
444C-E-MMA01-A08-03
Nozzle holder
Groove
Valve
Bearing
Cotton bud
444C-443P
444C-402P
444C-444P
1
2
3
4
1
2
3