IAI America IX-NNC8040 - Manual (Page 45)

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6. Inspection/Maintenance
6.3.3 Checking the Belt Tension
Bottom view
Timing belt for vertical axis
Timing belt for rotational axis
Top view
6.3.4 Checking the Belt Tension for the Vertical Axis
Using a push-pull gauge, push the timing belt for vertical axis with a force of A (gf) and measure the
amount of deflection.
If the deflection is B (mm), the belt tension is normal.
If not, adjust the belt tension by referring to 6.3.6, “Adjusting the Belt Tension for the Vertical Axis.”
Type A B
IX-NNC50 /60 340 ~ 410 (gf) 1.35 (mm)
IX-NNC70 /80 550 ~ 650 (gf) 2.2 (mm)
B (mm)
A (gf)
Belt
Pulley Pulley
z When measuring deflection, do not use a gauge with a sharp tip that may damage the belt.
z Disassembly of the cover generates dust. Before disassembling the cover, move the robot to a
location where dust will not cause problem, or cover the robot with a plastic sheet, etc., to prevent
dust from scattering.
Caution