YSP10_Mainte_E.pdf - 第97页

3. Conveyor transfer belt 4-8 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 sen…

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3. Conveyor transfer belt
4-7
Chapter 4 The parts to be replaced and its procedures
█
Replace the entrance/exit conveyor belt (or extension conveyor belt)
The replacement procedure of entrance/exit conveyor belt (or extension conveyor belt) is different from that
of center conveyor belt. This section describes each procedure from Step4. See "Replace the center conveyor
belt" described later to replace the center conveyor belt.
4
Using the 3mm hex wrench, loosen the
xing bolt of the tension plate and slide
it to the belt loosening direction.
5
Remove the belt.
1. Loosen the coupling fixing bolt with the 2mm
hex wrench and slide the coupling 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.
Loosening belts
Step 4
Pulley mounting bolts
Pulley bracket
Direction to loosen belt
Pulley bracket
Pulley
■ Entrance/exit conveyor
■ Extension conveyor of exit side
Hexagon wrench
(3mm)
Hexagon wrench
(3mm)
Pulley bracket
mounting bolts
Direction to loosen belt
53423-KMJ-10
Belt to be removed
Driving pulley
Coupling
Gap
Hexagon wrench
(2mm)
53424-KMJ-00
3. Conveyor transfer belt
4-8
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 pulley) to the
marked position and tighten the bolt
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
For entrance/exit conveyor:
17.5 to 28N (110 to 140Hz)
For extension conveyor:
17.5 to 28N (235 to 295Hz)
►
Set values (tension meter)
Weight: 1.2(g/m, mm)
Width: 7(mm)
Span (entrance/exit): 198(mm)
Span (extension): 94(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 entrance/exit
bolt and extension conveyor of exit side are follwing.
Make sure not to tighten the bolts excessively.
Pulley mounting bolt : 3.8N·m
Pulley bracket mounting bolt : 3.8N·m
Cleaning the belt guides and the pulleys
Step 6
Spatula (made of plastic)
Outer peripheral surface
of the pulleys
Brush
Belt guide
Belt wear debris
sticking to pulley
53425-KMJ-00
Tension measurement
Step 8
：Tension measurement point
■ Entrance/exit conveyor
：Tension measurement point
■ Extension conveyor of exit side
SPAN (94mm)
SPAN (198mm)
53426-KMJ-10
3. Conveyor transfer belt
4-9
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
[Convey Out] button [Convey In] button
54401-KMJ-00