IAI America RCA2-SA6R - Manual (Page 75)

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13. Maintenance Inspection
Tension
SA3R: 1.5
r 0.1 kgf
Other than SA3R: 2.5 r 0.1 kgf
Tension adjustment bolt
Model
Nominal
thread size
Tightening
torque
SA3R M2.6
0.46 N-m
(0.047 kgf-m)
SA4R M3
0.83 N-m
(0.085 kgf-m)
SA5R/SA6R M4
1.76 N-m
(0.18 kgf-m)
13.8 Belt
13.8.1 Inspection of belt
When inspecting the belt, remove the pulley cover and check the belt visually.
Although the durability of the belt is affected significantly by the operating conditions, generally a belt has
a flex line of several million times.
As a reference for determining when to actually replace the belt, replace the belt if any of the following
conditions is found:
x Significant wear of the teeth or end face of the belt
x Swelling of the belt due to attached oil, etc.
x Cracking or other damage of the teeth or back of the belt
x Breaking of the belt
13.8.2 Applicable belt
Manufacturer: Bando Chemical Industries, Ltd.
Belt model (type) Model
40S2M138R, 4-mm wide (clean rubber type) SA3R
60S2M152R, 6-mm wide (clean rubber type) SA4R
60S2M180R, 6-mm wide (clean rubber type) SA5R
60S2M180R, 6-mm wide (clean rubber type) SA6R
13.8.3 Adjustment of belt tension
Remove the pulley cover, loosen the tension adjustment bolts (4 locations), and shift the motor as shown
below to tension the belt. When finished, tighten the tension adjustment bolts.