5Maintenance and Inspection
Maintenance and inspection procedures
5-65
5.3 Maintenance and inspection procedures
The procedures for carrying out the periodic maintenance and inspection are described in this section. Thoroughly
read the contents, and follow the instructions. This work can be commissioned to the Mitsubishi Service Depart
-
ment for a fee. (Never disassemble, etc., the parts not described in this manual.)
The maintenance parts, etc., required for the customer to carry out maintenance and inspection are described in
Page 80, "5.5 Maintenance parts"
of this manual. Always contact your dealer when parts are needed.
The origin of the machine system could deviate when this work is carried out.
"Review of the position data" and "re-teaching" will be required.
5.3.1 Robot arm structure
An outline structure drawing is shown in
. Each part is as shown below.
1) The rotation of the J1 axis motor <1> arranged in the base is conveyed to the reduction gears <3> via the
timing belt <2> to rotate the J1 axis.
Brakes are not mounted in the J1 axis motor.
2) The rotation of the J2 axis motor <4> arranged in the No.1 arm is conveyed to the reduction gears <6> via
the timing belt <5> to rotate the J2 axis.
Brakes are not mounted in the J2 axis motor.
3) The rotation of the J3 axis motor <7> arranged in the No.2 arm is conveyed to the shaft via the timing belt
<8> to move the J3 axis as up and down.
Non-excitation magnetic brakes are mounted in the J3 axis motor.
4) The rotation of the J4 axis motor <9> arranged in the No.2 arm is conveyed to the shaft via the timing belt
(motor side) <10> and the timing belt (shaft side) <11> to rotate the J4 axis.
Brakes are not mounted in the J4 axis motor.
Fig.5-2 ： Outline structure drawing of robot arm
CAUTION
Base
<1> J1 axis motor
<2> Timing belt
<5> Timing belt
<6> Reduction gears
<7> J3 aqxis motor
<8> Timing belt
Shaft
<11> Timing belt
(Shaft side)
<10> Timing belt
(Motor side)
No.2 arm
<9> J4 axis motor
<4> J2 axis motor
No.1 arm
<3> Reduction gears
