33
③ When the Y-motor timing belt tension is adjusted, the followings are the input data for the sound wave-type belt
tension meter.
Weight: 3.8g/m
Wide: 35mm/#R
Span: 87.5mm
④ When adjusting the tension of the Y-motor timing belt, loosen the nut ③ assembled with the tension adjusting bolt
② and loosen the fixing bolts ① (8EA) which fix the Y-motor tension adjusting bracket to the extent that the
driven pulley bracket ④ can move.
⑤ When the tension adjusting bolt ② is turned clockwise, the Y-driving pulley ⑤ and the Y-motor tension adjusting
bracket ④ are pulled to the bolt direction and the timing belt tension increases. When the tension adjusting bolt ②
is turned counter-clockwise, the belt tension decreases.
⑥ When the tension adjustment is complete, tightly fasten using the nut ③ and the fixing bolt ②.
⑦ Use the fixing bolts ① (8EA) to fix the Y-motor tension adjusting bracket ④.
2) Y-Feed Timing Belt
① Disassemble the X-Y cover and check the Y-feed timing belt tension using the sound wave-type belt tension meter.
② Move the swing arm ⑦ to the left and set the Y-feed timing belt tension at 18~19kgf according to the sound wave-
type belt tension meter when the belt center of the timing belt fixing plate ⑥ and the Y-driven timing pulley A ⑤
has an impact created by fingers or equivalent tool.
③ When the Y-feed timing belt tension is adjusted, the followings are the input data for the sound wave-type belt
tension meter.
Weight: 3.8g/m
Wide: 35mm/#R
Span: 437.5mm
④ When adjusting the tension of the Y-feed timing belt, loosen the nut ③ assembled with the tension adjusting bolt
② and loosen the fixing bolts ① (4EA) which fix the Y-feed pulley bracket ⑧ to the extent that the feed pulley
bracket ④ can move.
⑤ When the tension adjusting bolt ② is turned clockwise, the Y-feed pulley ⑧ and the Y-feed pulley bracket ④ are
pulled to the bolt direction. This increases the tension of the timing belt Ⓐ, and vice versa.
⑥ When tension adjustment is complete, tightly fasten the nut ③ and the fixing bolt ②.
⑦ Fix the Y-feed pulley bracket ⑧ with the fixing bolts ① (4EA).
⑦
④
Ⓑ
⑤
⑥
①
③
②
If the tension adjusting bolt
②②
is turned without loosening the fixing bolts
①①
, it may cause the
damage to the machine.
Caution
If the tension adjusting bolt
②②
is turned without loosening the fixing bolts
①①
, it may cause the
damage to the machine.
Caution
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