YSM20R_YSM20WR_Mainte_E.pdf - 第108页
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
3-46
3
Periodic maintenance items
Loosening the conveyor belt
Loosen the pulley.
Mark pulley position.
Hex wrench (5)
Hex wrench (4)
Loosen the pulley.
Mark pulley position.
Hex wrench (5)
Hex wrench (4)
* This image is right flow type.
Regarding YSM20WR Single-lane, the tensioner (pulley) locates at the downstream side of the flow direction.
YSM20R Single-lane type
YSM20R Single-lane type (for transterring heavy board)
53365-KMK-10
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.
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