YSM20_YSM20W_Mainte_E.pdf - 第106页
3-48 3 Periodic maintenance items 5 Detach belt from conv ey or . Detach the conveyor belt from the pulley and board guide. 6 Check the conv ey or belt. Check the transfer sur face of the detached belt for worn-out or sc…
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3
Periodic maintenance items
YSM20 Single-lane
YSM20 Single-lane (for transferring heavy boards)
* This image is right flow type.
Regarding YSM20W Single-lane, the tensioner (pulley) locates at the downstream side of the flow direction.
Loosening the conveyor belt
YSM20 Single-lane / YSM20W Single-lane (for transferring heavy boards)
Put a marking at the bracket
position with a permanent marker.
Put a marking at the pulley
position with a permanent marker.
Loosen this bracket.
Loosen this pulley.
Hex wrench (5)
Hex wrench (4)
533F1-N2-00
TIP
Regarding YSM20W Single-lane, the tensioner (pulley) locates at the downstream side of the conveyor flow direction.
Therefore the tensioner (pulley) location varies if the machine flow direction is different.
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3
Periodic maintenance items
5
Detach belt from conveyor.
Detach the conveyor belt from the pulley
and board guide.
6
Check the conveyor belt.
Check the transfer surface of the detached
belt for worn-out or scuffing. If the belt worn-
out amount or scuffing is large, replace the
conveyor belt while referring to "Chapter 6
How to replace consumable parts"
7
Clean the belt guides and pulleys.
1. Use a vacuum assembly (option) to suck
the belt wear debris on the belt guides
and sensors, etc.
2. Use a plastic spatula or similar tool to
remove the belt wear debris adhering to
the outer peripheral surface of pulleys.
3. Use a brush or similar tool to remove belt
wear debris caught in the belt guides.
c
CAUTION
Use a plastic spatula and brush to avoid scratching the
pulleys and guides.
c
CAUTION
Do not use a solvent (IPA, etc.) unless the guides and
pulleys are excessively dirty. If using a solvent, be
careful not to spill the solvent on the bearing in the
pulleys during cleaning.
8
Reattach the belt.
1. Reattach the belt temporarily while
putting it on the pulley.
2. Move the bracket (YSM20W Single-lane:
pulley) to the position marked in Step 4
and mount the bolts.
3.
If looseness of the belt is found, adjust the
bracket (pulley) position to apply tension.
n
NOTE
The following shows the conveyor belt tension standard
values of this machine. When necessary, adjust the
conveyor belt tension with a tension meter.
• YSM20 Dual-stage
Entrance, exit : 150 to 180Hz
W2-axis, W3-axis : 300 to 350Hz
• YSM20/YSM20W Dual-lane / YSM20 Single-lane
W1-axis : 420 to 460Hz
• YSM20W Single-lane (for transferring heavy boards)
W1-axis : 274 to 334Hz
c
CAUTION
The followings are tightening torques of the tensioner
mounting bolts. Do not tighten the bolt excessively.
Pulley bracket mounting bolt : 3.8 N•m.
Pulley mounting bolt : 5.5 N•m.
Cleaning the belt guide and pulley
Step 7
Spatula
(made of plastic)
Belt wear debris
sticking to pulley
Belt guide
Belt guide
Outer peripheral
surface of pulley
Brush
Outer peripheral surface of pulley
533D5-N2-10
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3
Periodic maintenance items
n
NOTE
The tension measurement locations and tension standards of this machine's conveyor belt are as below.
Adjust with tension meter as needed.
Conveyor belt: Tension measurement locations and tension standards
YSM20
Transfer
direction
Dual-stage type
Tension measurement location:
STD: Tension of standard conveyor
EXT: Tension of extended conveyor
STD: 425 - 475 Hz
EXT: 100 - 120 Hz
Single-lane type
STD: 490 - 540 Hz
STD: 490 - 540 Hz
STD: 425 - 475 Hz
EXT: 100 - 120 Hz
STD: 420 - 460 Hz
EXT: 420 - 460 Hz
W1
W2W3
W4
Transfer
direction
53396-N2-00