13. Protected Model Maintenance Part 2: Maintenance
210
Installation
For maintenance, the cable unit is provided with an elbow fitting on one end. The other
end has a sealed duct rotating mechanism on the mounting bracket.
(1) Let the wires go through the base connector box. Secure the main cable elbow fitting
using four bolts (M6×12). Please make sure that the O-ring securely fits in the groove
on the main cable elbow fitting’s clamp face so that the ring will not slip from the
groove or get pinched.
(2) Apply liquid gasket on the clamp face before the cable bracket is secured on the arm.
Mount the cable bracket with three bolts (M4×12). Apply liquid gasket on the bearing
surface of bolts, too.
(3) Referring to the wiring schematics on the following pages, connect all connectors
properly.
CAUTION
Connect the signal cable securely. Do not allow unnecessary strain on the
signal cable or bend it extremely. This may damage the signal cable and cause
the robot to malfunction.
(4) Referring to the section Wiring Schematic 1 in this chapter, connect the ground wires
and pneumatic tubes properly.
(5) Apply liquid gasket on the clamp face before the receptacle is secured on the base
connector plate with four bolts (4-M3×8).
(6) Bind the cables with wire ties as they were before the unit replacement. The
following must be paid attention to when binding the cables with a wire tie:
• The cables must not touch the pulley, timing belt or other movable parts or areas.
• Do not pinch the cables when closing the cover.
• Do not allow unnecessary strain on the cables. The cables must be arranged so
that they will not be forcibly bent. Unnecessary strain on the cables may cause
wire disconnection inside.
• The cables inside the duct must be long enough so that they will not be pulled
during operation.
(7) Install the base connector plate. Seal the base connector plate and manipulator base
with liquid gasket.
(8) Install the arm top cover. Seal the cover and arm with liquid gasket.
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