20
5
TAKING UP THE BELT
When belt is slackened off, take up belt as follows:
To take up belt, turn right and left take-up knobs(*1)
of drive unit counterclockwise. When turning take-up
knobs(*1), adjust them alternately, little by little, to
keep their movement lengths the same.
■
Belt Tension
Do not take up belt too much, but only to extent that
belt does not slip on drive pulley, i.e. enough to drive belt.
NOTE: Excessive belt take-up may overload motor
or shorten service lives of belt, pulley, etc.
How to calculate belt expansion percentage
1) Slacken belt.
2) Mark any two points on belt surface and measure length between them (
ℓ
).
3) Take up belt.
4) Measure length between two marks (
ℓ1
) again.
eg
ℓ
= 1000 mm
ℓ1= 1002 mm
Belt expansion percentage = 0.2 %
Standard belt expansion percentage
■
Adjustment Using Intermediate Take-up Unit
(for longer machines exceeding 6m in length)
(1) Fully loosen take-up knobs(*1) of drive unit. (Turn them clockwise.)
(2) Take up belt by turning take-up knobs(*2) of intermediate take-up unit counterclockwise. When
(2)
turning take-up knobs(*2), adjust them alternately, little by little, to keep their movement lengths the
(2)
same.
(3) To completely remove belt slack, turn take-up knobs(*1) of drive unit counterclockwise. Also adjust
(2)
belt alignment while turning take-up knobs(*1).
Nominal belt
width (mm)
Expansion
percentage (%)
～
200
0.2
250
～
600
0.15
～
0.1
600
～
1,000 or
Motor power of
0.2kW or more
0.1
Summary of Contents for S-CON MINI-Z Series
Page 1: ...1 S CON MINI Z Series OPERATING AND SERVICE MANUAL...
Page 35: ...35 MEMO...
