32
2) X-Feed Timing Belt
① Disassemble the X-Y cover and check the X-feed
timing belt tension using the sound wave-type belt
tension meter.
② Set the X-feed timing belt tension at 26~27kgf
according to the sound wave-type belt tension
meter when the X-feed base ⑥ is moved to the
right side, and the belt center Ⓐ of the timing belt
fixing plate ④ and the X-driven pulley ② has an
impact created by fingers or equivalent tool.
③ When the X-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: 597.5mm
④ When adjusting the tension of the X-feed timing
belt, loosen the nut ③ assembled with the tension
adjusting bolt ②, and loosen the fixing bolts ①
(8EA) which fix the driven pulley bracket ④ to the
extent that the driven pulley bracket ④ can move.
⑤ When the tension adjusting bolt ② is turned clockwise, the driven pulley ⑤ and the driven pulley bracket ④ are
pulled to the bolt direction. This increases the tension of the timing belt Ⓐ. When the tension adjusting bolt is
turned counter-clockwise, belt tension decreases.
⑥ When tension adjustment is complete, tightly fasten the nut ③ and the fixing bolt ②.
⑦ Fix the driven pulley bracket ④ with the fixing bolts ① (8EA).
7.11.3) Adjustment of Y-Shaft Timing Belt Tension
1) Motor Driving Part Timing Belt
① Disassemble the X-Y cover and check the Y-motor
driving part timing belt tension using the sound
wave-type belt tension meter.
② Set the Y-motor driving part timing belt tension at
1.5~2kgf according to the sound wave-type belt
tension meter when the belt center Ⓐ of the driving
pulley ⑤ and the driven pulley ⑥ has an impact
created by fingers or equivalent tool.
⑥
⑦
Ⓑ
⑤
①
②
③
④
①
⑥
⑤
②
③
④
①
Ⓐ
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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