5 Maintenance and Inspection
Maintenance and inspection procedures
5-105
5.3.3 Inspection replacement of timing belt
This robot uses a timing belt for the drive conveyance system. Compared to gears and chains, the timing belt does
not require lubrication and has a low noise. However, if the belt usage method and tension adjustment are inade
-
quate, the life could drop and noise could be generated. Sufficient aging to remove the initial elongation of the belt
have been carried out before shipment from the factory.
However, depending on the robot working conditions, elongation will occur gradually over a long time. The tension
must be confirmed during the periodic inspection.
Please prepare the sound wave type belt tension gauge in inspection of the timing belt. Refer to the Page 135,
"(15) Timing belt tension" for the tension of the timing belt.
The recommendation gauge is shown below.
Manufacture: Gates Unitta Asia Company
Type: U-508
Fig.5-7 ： Tension adjustment method of timing belt
When the timing belt has to be removed for repair or some other reason, measure the
tension before removing the belt.
When the belt is reinstalled, the tension must be the same as the one measured
before removal. Otherwise, the life of the belt and the relevant parts may be short
-
ened.
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