Rev. 2.0
Maintenance Guide
5-1
DANGER
To prevent any trouble caused by accidental machine start, always
shut-down the power before starting the maintenance and
adjustment work.
[5] BOARD TRANSPORT UNIT
5-1. Replacing the Transport Belt
1) Loosen the transport belt tension adjustment pulley. (Locations indicated by arrows in the
figure below)
Figure 5-1-1 PWB Transport Block and Transport Belt
2) Replace the belt with the one shown in Table 5-1-1.
3) To provide appropriate belt tension, measure the length of the belt with no tension exerted,
and adjust the position of the transport pulley along the slot so that the belt length increases
by 0.5%.
<Adjustment procedure>
Use a pencil or similar tool to put two marks, which are 200mm apart from each other, on the belt.
Move the transport pulley to exert tension so that the distance increases to 201 mm.
Take care with the CENTER buffer so that the transport rails FC and RC do not lift as a result of
the increased belt tension.
Table 5-1-1 Transport Belt Part No.
[List of Replacement Parts]
IN/OUT
CENTER
ST Extended transport
150 mm 40114731
M PWB specification 40113952 40113953
250 mm 40114732
150 mm 40011058
L PWB specification 4001070 40000863
250 mm 40011065
L-wide OP 4001070 40011058
−
XL PWB specification 40097732 40097731
− −
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