DISCO DFG8540 User manual
Technical Newsletter
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DFG8540, 8560/DFP8140, 8160 Request for Periodic Replacement
Brush/Leveling Stone (T2 Pad Washing Unit [Optional Accessory])
Applicable model
DFG8540, DFG8560, DFP8140, DFP8160
Request for replacement at intervals of 1 year
In order to prevent insufficient cleaning due to aged deterioration of the brush or leveling stone, it is
recommended to periodically replace them at intervals of 1 year.
Sorry for inconvenience caused by the periodic replacement but we appreciate your understanding.
Parts for replacement/Part No.
The part ID for each replacement part is different depending on the model.
Also, some user-specified specification machines are equipped with the sponge, instead of the brush.
Please be careful. For details regarding the sponge, please contact DISCO.
[DFG8540 /DFP8140]
Item DISCO Part ID Qty.
Brush BRUSH
LJLH-910584-0
1
Leveling stone WASHING BOARD
LJAH-010006-1
1
[DFG8560 /DFP8160]
Item DISCO Part ID Qty.
Brush BRUSH
LJSH-910080-0
1
Leveling stone WASHING BOARD
LJSH-010000-1
1
For the replacement procedure, there is no difference among the models. Please refer to the pages that
follow.
Inquiries
Please contact your local DISCO sales representative or DISCO customer engineer if you have any
questions regarding this matter.
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Replacement of Brush/Leveling Stone
(T2 Pad Washing Unit [Optional Accessory])
Necessary tool
Allen wrench
Procedures to replace the brush/leveling stone of the T2 pad washing unit
CAUTION
When replacing the leveling stone, do not loosen or adjust the 3 set screws in
the image below
The 3 set screws in the image below are for adjusting the level of the leveling stone. If
you adjust the set screws, there is a risk that the leveling stone will not press against
the T2 pad and it will not be possible to perform T2 pad cleaning appropriately.
Leveling stone
Set
screw
Hexagon socket head cap
screw
Set screw
Step No. Procedure
1 Connect the handy panel at the Z1 side.
2 Move the brush of the washing unit to the washing (center) position.
→Refer to Section 2-3-8, [Operation Screens for Washing Unit] of Chapter G in the
Maintenance Manual for operation details of the washing unit.
3 Display the operation screen for the transfer arm 2.
R#300 T.ARM2/ INITIAL <P N>
Z: ###.## mm T: ###.## VAC: ### kPa
INITIAL VACUUM ON VACUUM OFF
BLOW ON BLOW OFF
SEQUENCE WATER ON WATER OFF
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Procedures to replace the brush/leveling stone of the T2 pad washing unit (Continued)
Step No. Procedure
4 Press ">P" key twice.
・The following screen appears.
R#305 T.ARM2 / P.WASH.OPT.2 <P N>
Z: ###.## mm T: ###.## VAC: ### kPa
MOVE
T SCRUBBING MOVE
T ESCAPE MOVE
T BRUSHING
STONE
SET BRUSH
SET
WASH SEQ
(STONE) WASH SEQ
(BRUSH)
5 Press "MOVE T ESCAPE" key.
・The transfer arm 2 pad moves to the chuck table side.
6 Press "BRUSH SET" key.
・The brush will rotate and the brush side will face upward.
7 Open the grinding section side cover at the Z1 side.
8 Remove the brush after removing the hexagon socket head cap screws (M4 × 2).
Brush
Hexagon socket head cap screw
Hexagon socket
head cap screw
9 Install a new brush with the hexagon socket head cap screws (M4 × 2).
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Procedures to replace the brush/leveling stone of the T2 pad washing unit (Continued)
Step No. Procedure
10 Remove the hexagon socket head cap screws (3 pcs) and remove the leveling stone
together with the holder.
・The size for the hexagon socket head cap screws is M5 for the DFG8540/DFP8140, and
M4 for the DFG8560/DFP8160.
・Do not adjust the 3 set screws next to the hexagon socket head cap screws. The 3 set
screws are for adjusting the level of the leveling stone.
Leveling stone
Set screw
Hexagon socket head cap
screw
Set screw Holder
11 Remove the leveling stone after loosening the set screws (3 pcs) at the lateral side of the
holder.
・The size for the set screws is M5 for the DFG8540/DFP8140, and M4 for the
DFG8560/DFP8160.
Leveling stone
Set screw
Holder
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Procedures to replace the brush/leveling stone of the T2 pad washing unit (Continued)
Step No. Procedure
12 Install the new leveling stone and tighten the set screws on the holder lateral side (3 pcs).
・Install it so that the leveling stone's lateral side and the holder's lateral side are flat.
【OK】 【NG】
When viewing the leveling stone from the top
Holder
13 Looking at the leveling stone from the lateral side, verify whether its lower surface is
touching the holder.
【OK】 【NG】
When viewing the leveling stone from the lateral side
Holder
If the leveling stone's lower surface is not touching the holder:
Remove the leveling stone from the holder and attach it again.
14 Install the holder of the leveling stone with the hexagon socket head cap screws (3 pcs).
15 Close the grinding section side cover at the Z1 side.
16 Effect initialization of the machine.
17 Perform the cleaning of the transfer arm 2 pad through the handy panel.
→Refer to Section 2-3-4, [Operation Screens for Transfer Arm 2] of Chapter G in the
Maintenance Manual for operation details of the transfer arm 2.
18 Make sure that there is no problem with the transfer arm 2 pad cleaning result.
19 Disconnect the handy panel from its connector.
This manual suits for next models
3
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