Mitsubishi Electric RH-12FH Series, Instruction Manual, Page: 114 / 146

5-101
Maintenance and inspection procedures
5 Maintenance and Inspection
5.3.6 Lubrication
(1) Lubrication position and specifications
The grease nipple position is shown in Fig. 5-17 . The lubrication specifications for each place are shown in Table
5-5 . Refer to the Page 81, "5.3.2 Installing/removing the cover" for the method of removing and installing the
cover.
Fig.5-17 ： Lubrication positions
Table 5-5 ： Lubrication specifications
No. Parts to be lubricated Lubrication method
Lubrication oil
Default charge amount
(maker)
Lubrication
interval
Lubrication
amount
guide
Cover to
remove
RH-3FH series
<1> J1 axis reduction gears
Grease nipple
WA-610(Only addition)
4B No.2
(Harmonic Drive Systems Inc.)
24,000 Hr 12 g Battery cover
<2> J2 axis reduction gears
Grease nipple
WB-610(Only addition)
24,000 Hr 8 g
No.2 arm
cover U
<3>
Shaft
（ball screw spline） Wipe the old grease,
and applies Multemp PS2
(KYODO YUSHI CO., LTD.)
Every 2,000km
movement
1 g
Type B
Type A
There are two types of the position of J1 axis lubrication port, one is inside of the battery cover (type A) and the other is on
the front of the base section (type B).
Model Type Remarks
RH-3FH series Type A
RH-6FH series Type A/Type B Check that where the J1 axis lubrication port is located on the robot arm.
RH-12FH series Type A
RH-20FH series Type A
<4>Ball screw section application
RH-6FRH/12FRH/20FRH
Inside of No.2 arm cover U
Ball screw nut
<2>J2 axis lubri
-
cation port
<3>Shaft section application
RH-3FH: ball screw spline
RH-6FH/12FH/20FH: ball spline
Ball spline nut
<1>J1 axis lubrica
-
tion port