YSP10_Mainte_E.pdf - 第100页

3. Conveyor transfer belt 4-1 1 Chapter 4 The parts to be replaced and its procedures 6 Clean the belt guides and the pulleys. 1. Use a vacuum assembly (opt ion) to suction the belt w ear debris on t he belt guides and s…

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3. Conveyor transfer belt
4-10
Chapter 4 The parts to be replaced and its procedures
█
Replace the center conveyor belt
See "Replace the entrance/exit conveyor belt (or extension conveyor belt)" described above to replace the
entrance/exit conveyor belt or extension conveyor belt.
4
Loosen the belt tension.
►
Datum conveyor side
Loosen the tensioner fixing bolt with the 4mm
hexagon wrench and slide it to the belt
loosening direction.
►
Moving conveyor side
• For Standard machine
Loosen the tension bolt with the 4mm hexagon
wrench to slide the pulley to the belt loosening
direction.
• For L650 type machine
Loosen the tension pulley with the 4mm
hexagon wrench to slide the pulley to the belt
loosening direction.
5
Remove the belt.
1. Loosen the coupling fixing bolt with the
2.5mm hexagon wrench and slide it to the
rear side of the machine.
2. Remove the belt from the pulley and pull it
through the gap between the pulley and the
shaft.
Remove the belt
Step 5
The belt to be removed
Tensioner (pulley)
Coupling
Gap
Hex wrench (2.5mm)
53434-KMJ-00
Step 4
Standard conveyor
L650 type machine conveyor
Loosening belts
Pulley bracket
mounting bolt
Pulley bracket
Pulley bracket
Pulley mounting bolt
Pulley
Pulley
Hexagon wrench (4mm)
Hexagon wrench
(5mm)
Hexagon wrench(4mm)
Machine front side
Machine front side
Direction to loosen belt
53433-KMJ-10
3. Conveyor transfer belt
4-11
Chapter 4 The parts to be replaced and its procedures
6
Clean the belt guides and the 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.
c
CAUTION
Use plastic spatula or brush to avoid scratching the pulley
or guide.
c
CAUTION
Do not use any solvent (such as IPA) except of heavy
soiling. Use absolute ethanol and make sure not to pour
the solvent over the pulley bearing upon cleaning.
7
Attach the new belt by the reversed
procedure of Step4 and Step5.
1. Attach the new belt temporarily while putting
it on the pulley.
2. Reattach the coupling and tighten the bolt.
3. Move the pulley bracket or the pulley to the
marked position and tighten temporarily.
8
Measure the belt tension at the tension
measurement point with the tension
meter as shown on the right illustration.
►
The belt tension standard value
Tension: 23 to 34N (256 to 305Hz)
►
Set values (tension meter)
Weight : 2.5(g/m, mm)
Width : 6(mm)
• For Standard machine
Span (datum side) : 111(mm)
Span (moving side) : 77(mm)
• For L650 type machine
Span (datum side) : 111(mm)
Span (moving side) : 70(mm)
9
According to the results of the belt
tension measurement, change the
tension adjustment plate position to
acquire the value in the optimal range.
Fix the temporarily tightened bolt firmly after
adjustment.
c
CAUTION
The tightening torque of the mouting bolt of center
conveyor is follwing. Make sure not to tighten the bolts
excessively.
Pulley mounting bolt : 5.5N·m
Pulley bracket mounting bolt : 5.5N·m
Cleaning of the belt guides and the pulleys
Step 6
Spatula
(made of plastic)
Outer peripheral surface of pulley
Brush
Example of the rear side of
the machine (moving side)
Belt guide
Belt wear debris
sticking to pulley
53435-KMJ-00
Step 8
■ Moving side
■ Datum side
SPAN 111mm
SPAN 77mm
SPAN 70mm
Tension measurement
：Tension measurement point
Front side of
machine
Front side of
machine
Standard conveyor
L650 type machine conveyor
53436-KMJ-10
3. Conveyor transfer belt
4-12
Chapter 4 The parts to be replaced and its procedures
0
Check the belt assembly condition.
1. Close machine safety cover and lower
maintenance cover. Then close lower door
and cancel the emergency stop.
2. Press again the [Cleaner Connect] button on
[Unit] - [Cleaner] screen.
The cleaning unit moves to its original
position (machine front side) and disconnects
with the camera unit.
3. Press the [Convey In] or [Convey Out] button
on [Unit] - [Conveyor] screen to transfer
several boards, and check the motion.
4. Rotate the conveyor belt by hand and
confirm that no slack or unevenness of
rotation is found.
When any slack or unevenness of rotation is
found, check the belt assembly condition,
and readjust the position of pulley bracket
(or pulley).
Checking the transfer motion
Step 10
[Convey Out] button [Convey In] button
54401-KMJ-00