C8 Maintenance 2. General Maintenance
190 C Series Maintenance Manual Rev.2
2.3.5 Joint #4 Reduction Gear Unit
Remove the grease plug from the Joint #4
grease inlet of the Arm #4.
Attach the grease nipple to the Joint #4 grease
inlet.
The grease plug attaching hole located near the
label with “4” printed is the Joint #4 grease
inlet.
The grease inlet position differs depending on
the model. Carefully identify the correct
position.
Inject grease from the grease nipple using
a grease gun
Grease: SK-1A
Grease amount: 2g
Remove the grease nipple from the Joint #4
grease inlet.
Attach the grease plug to the Joint #4 grease
inlet.
If the grease plug is damaged or deteriorated,
replace it with a new one.