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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"
CAUTION
5.3.1 Robot arm structure
An outline structure drawing is shown in
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.
<5> Timing belt
<6> Reduction gears
<7> J3 aqxis motor
<8> Timing belt
Shaft
Fig.5-2 ： Outline structure drawing of robot arm
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.
Fig.
5-2. Each part is as shown below.
<1> J1 axis motor
<2> Timing belt
<11> Timing belt
(Shaft side)
<3> Reduction gears
No.1 arm
<4> J2 axis motor
<9> J4 axis motor
No.2 arm
<10> Timing belt
(Motor side)
Maintenance and inspection procedures 5-65
5Maintenance and Inspection
Base
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