C8 Maintenance 9. Joint #5
372 C Series Maintenance Manual Rev.2
When using the belt tension tensile jig (maintenance part):
Fix the belt tension tensile jig (for J4, J5, and J6) with the screws
(2-M4×15) and push the rubber against the pulley.
Tension is applied as the set screw (M6×15
rubber.
7. Install the air tube fitting in the front of the Joint #5 motor unit.
After tightening by hand, tighten one sixth to quarter of a turn.
Tightening of the fitting:
Fitting is too tight:
It may cause air leakage due to screw breakage or gasket
deformation.
Fitting is too loose:
It may cause loose screws and air leakage.
8. Connect the following connectors.
Connectors: X052, X152, BT52, BR052
9. Install the brake power supply to the plate.
Cross recessed head screw with captive washer: 2-M3×6
Tightening torque: 0.45 ± 0.1 N·m
10. Fix the cable protection bracket to the Arm #4.
Hexagon socket head cap bolts: 2-M4×10
Tightening torque: 4.0 ± 0.2 N·m
Be careful not to get the cables caught. It may result in cable
breakage.
11. Install the Arm #4 side cover.
For details, refer to C8 Maintenance: 3. Covers.
12. Perform the calibration.
For details, refer to C8 Maintenance: 16. Calibration.
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