Mitsubishi Electric MELFA RH-12SQH Series, Instruction Manual

Page: 80 / 106

5-71
Maintenance and inspection procedures
5Maintenance and Inspection
5.3.5 Lubrication
(1) Lubrication position and specifications
Fig.5-13 ： Lubrication positions
Table 5-4 ： Lubrication specifications
The grease nipple position is shown in Fig. 5-13 . The lubrication specifications for each place are shown in Table
5-4 . When lubricating, remove the covers that need to be taken off by refer to "Fig.5-3 ： Installing/removing the
cover".
［Caution］
・ The brands of grease given in
Table 5-4 are those filled when the robot is shipped.
・The lubrication time is a cumulative value of the operation at the maximum speed. If the operation has been sus -
pended, or if the designated speed is slow, the lubrication time can be lengthened in proportion.
・ Depending on the robot operation state, the lubrication time will fluctuate, so determine the time according to
the state so that the grease does not run out.
・ The numbers in the Table 5-4 correspond to the supply positions in Fig. 5-13 .
(2) Lubrication method to the J1, J2 axis
1) Refer to the "Fig.5-3 ： Installing/removing the cover" and remove the covers.
2) Insert the grease shown in Table 5-4 using a grease gun from the lubrication grease nipple.Add only the
specified amount of grease. Adding excess grease may cause grease to leak.
3) Replace the covers with the removal procedure in reverse.
[Note] Sealant is applied to the cover joint surface of the oil mist specification and clean specification models. Be
sure to replace the sealant if it has been dislocated and bent or crushed and does not return to its original
shape.
(Use liquid gasket and Norseal in
"Table 5-5 ： Consumable part list" on page 75 .)
Moreover, in the case of oil mist specification and clean specification models, it is necessary to remove
the top and bottom bellows. See Section
"5.3.4Replacing Bellows" on page 68 for details on how to
remove them.
No.
Parts to be
lubricated
Oiling method
Lubrication oil
Default charge amount (maker)
Lubrication
interval
Lubrication
amount guide
Cover to remove
<1> J1 axis reduction gears
Grease nipple
WC-610(Only addition)
Grease
Harmonic grease SK-1A
（Japan Harmonic Systems） 6,000 Hr 3 g J1 cover
<2> J2 axis reduction gears 6,000 Hr 2 g
No. 2 arm cover-U
<3> Shaft
Wipe the old grease, and
paint Marutenpu PS No.2
(KYODO YUSHI CO.,LTD. ) Every 2000km
movement
1g
<3>
<1>
<2>
<3>Shaft lubrication
J2 axis air inlet
<2>J2 axis lubrication port
J1 axis air inlet
<1>J1 axis lubrication port