YS24X_Mainte_E - 第149页
6-13 6 How to replace consumable parts n NOTE The tension measurement locations and tension standards of this machine’s conveyor belt are as follow. Adjust by using a tension meter as necessary. Conveyor belt: Tension me…
6-12
6
How to replace consumable parts
7
Remove the belt from the conveyor.
Detach the conveyor belt through the
clearance between the shaft and drive
pulley.
53625-L4-00
8
Clean the guides and pulleys.
1. Use a vacuum assembly (option) to
suction 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 the
pulleys.
3. Use a brush or similar tool to remove the
belt wear debris caught in the belt
guides.
53626-L4-00
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.
9
Replace the conveyor belt.
1. Attach a new belt temporarily while
putting it on the pulley.
2. Tighten to secure the spline shaft with the
shaft fixing bolt.
3. Move the tensioner (pulley/pulley
bracket) that tension is applied to the
marked location in Step 4, and tighten
the bolt.
4. If looseness of the belt is found, adjust
the position of the tensioner (pulley/
pulley bracket) to apply necessary
tension.
53627-L4-00
c
CAUTION
Tighten the mounting bolts of the pulley and pulley
bracket to the following torques:
• Pulley mounting bolt : 5.5N•m.
• Pulley bracket mounting bolt : 3.8N•m.
Be careful not to tighten the bolts excessively.
Detaching the conveyor belt
Step 7
Cleaning the guide and pulleys
Step 8
Brush
Belt guides
Belt wear debris
sticking to pulley
Spatula
(made of plastic)
Outer peripheral surface
of pulley
Tension measurement point
Step 9
■ Single-lane/Dual-lane, Dual-stage W1
■ Exit conveyor
Tension measurement point
Exit conveyor
Tension measurement point
6-13
6
How to replace consumable parts
n
NOTE
The tension measurement locations and tension standards of this machine’s conveyor belt are as follow.
Adjust by using a tension meter as necessary.
Conveyor belt: Tension measurement positions and tension standards
YS24X
W1W2W3
Tension measurement positions:
STD: Tension of standard conveyor
EXT: Tension of extended conveyor
STD : 627 - 741 Hz
Conveyance direction
Conveyance direction
Specification: Dual-stages
Specification: Dual-lanes
EXT : 627 - 741 Hz
STD : 605 - 715 Hz
STD : 416 - 491 Hz
EXT : 416 - 491 Hz
STD : 378 - 446 Hz
EXT : 128 - 150 Hz
STD : 378 - 446 Hz
EXT : 140 - 164 Hz
STD : 378 - 446 Hz
EXT : 128 - 150 Hz
Conveyance direction
Lane 1
Lane 2
Specification: Single-lane
53633-L4-00
6-14
6
How to replace consumable parts
0
Attach the board clamp plate.
1. Fit the board clamp plate into its original
position and tighten the board clamp
plate mounting bolts with a hex wrench
(3).
2. Remove the square cloth on the push-up
plate.
53628-L4-00
q
Check the belt rotating condition.
1. Make sure that the board clamp top
surface is approx. 0.5mm lower than the
belt upper surface.
2. Close the machine safety cover, and
cancel the emergency stop. If the
machine could be equipped with a
carriage, set the carriage.
3. On the [Unit] - [Conveyor] screen, press
the [Conveyor In] button or [Conveyor
Out] button to turn on the conveyor
motor and check the belt rotation.
4. If the rotation speed fluctuates or there is
slack in the belt, adjust the position of
the tensioner (pulley/pulley bracket) that
tension is applied, and then check the
rotation again.
c
CAUTION
When the difference between the belt upper surface
and board clamp top surface is very little, the board
transfer error may occur easily. In this case, contact
YAMAHA sales representative.
Step 10,11
Attaching the board clamp plate
Board clamp plateBoard clamp plate mounting bolt
0.5 mm
Board clamp
Belt upper surface