YS24X_Mainte_E.pdf - 第97页
3-30 3 Periodic maintenance items 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 measure…
3-29
3
Periodic maintenance items
5
Loosen the belt.
1. Use two hex wrenches to loosen the
mounting bolt of the belt tensioner pulley.
Hex wrench on pulley side : 5mm
Hex wrench size on mounting bolt side : 4mm
2. For DS exit conveyor (W3 - axis) only:
Use a hex wrench (3) to loosen the bolts
that secure the pulley bracket.
3. Move the tensioner (pulley/pulley bracket)
to the end of the tension adjusting slot in
the loosening direction.
533D5-L4-00
6
Remove the belt from the conveyor.
Detach the conveyor belt from the pulleys
and belt grooves of the conveyor guide.
7
Check the belt for wear and scuffing.
If wear or scuffing of the belt is obvious,
replace the conveyor belt referring to "4.1
Replacing the conveyor belt" in Chapter 6.
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.
533D6-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. Reattach a new belt temporarily while
putting it on the tensioner (pulley).
2. Move the tensioner (pulley/pulley
bracket) to the position you have put the
marking in Step 4 and mount the bolts.
3. If looseness of the belt is found, adjust the
position of the tensioner (pulley/pulley
bracket) to apply necessary tension.
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.
Loosening the belt
Step 5
Dual-lane Lane 2
Hex wrench (5)
Move the pulley to loosen the belt.
Pulley bracket mounting bolt
Move the pulley to
loosen the belt.
Hex wrench (4)
(Mounting bolt side)
Hex wrench (3)
Dual-stage Exit conveyor (W3-axis)
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
3-30
3
Periodic maintenance items
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
53393-L4-00
3-31
3
Periodic maintenance items
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 placed on the
push-up plate.
533D8-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.
54319-L4-00
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
Conveyor operation check
Step 11
Conveyor drive buttons
Left Right
Low Left Low Right