Maintenance And Inspection Procedures; Robot Arm Structure; Rh-3Frh Series - Mitsubishi Electric RH-FRH Series Instruction Manual

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 140, "5.5 Maintenance parts"
CAUTION

5.3.1 Robot arm structure

An outline structure drawing is shown below.

(1) RH-3FRH series

1) The J1 axis is rotated by the J1 axis motor <1> and the reduction gears <2> in the base. Brakes are not
mounted in the J1 axis motor <1>.
2) The J2 axis is rotated by the J2 axis motor <3> and the reduction gears <4> in the No. 2 arm. Brakes are
not mounted in the J2 axis motor <3>.
3) The rotation of the J3 axis motor <8> arranged in the No.2 arm is conveyed to the ball screw spline via the
timing belt <9> to move the J3 axis as up and down. Non-excitation magnetic brakes are mounted in the J3
axis motor <8>.
4) The rotation of the J4 axis motor <5> arranged in the No.2 arm is conveyed to the ball screw spline via the
timing belt 1 <6> and the timing belt 2 <7> to rotate the J4 axis. Brakes are not mounted in the J4 axis
motor.
Fig.5-1 ： Outline structure drawing of robot arm (RH-3FRH)
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.
5Maintenance and Inspection
Maintenance and inspection procedures 4-98