YSM20R_YSM20WR_Mainte_E - 第109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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3-47
3
Periodic maintenance items
Loosening the conveyor belt
YSM20WR Dual-lane type
Loosen the pulley.
Loosen the pulley.
Mark pulley position.
Hex wrench (5) Hex wrench (4)
533A3-KMK-00
3-48
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 ethanol, be careful
not to spill the ethanol 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 (YSM20R/YSM20WR
single-lane type/YSM20WR dual-lane
type: 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.
c
CAUTION
The followings are tightening torques of the mounting
bolts for pulley/pulley bracket. 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
Plastic spatula
Belt guide
Belt wear debris
sticking to pulley
Outer peripheral
surface of pulley
Brush
53366-KMK-00
3-49
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 / Tension standards
YSM20R
Transfer
direction
Dual-stage type
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: 350 - 420 Hz
EXT: 110 - 130 Hz
W1
W2W3
W4
Tension measurement location:
STD: Tension of standard conveyor
EXT: Tension of extended conveyor
Transfer
direction
53367-KMK-00