5-61
Maintenance and inspection procedures
5Maintenance and Inspection
5.3.2 Installing/removing the cover
Fig.5-3 ： Installing/removing the cover
Table 5-3 ： Cover names
(1) Referring to
, remove the covers.
(2)
lists the names of the covers and installation screws.
(3) Lower the J4 axis (shaft) using jog operations before removing the No.2 arm cover-U.
(4) When reattaching the covers after a maintenance inspection, proceed in the reverse order of their removal.
[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 packing 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. Refer to
"5.3.4Replacing Bellows" on page 68
for details on how to remove them.
No.
Cover name
Q'ty
Installation bolt name
Remarks
(1)
No.2 arm cover-U
1
Hexagon socket bolts, 10-M4 x 10 (RH-6SQH series)
Hexagon socket bolts, 11-M4 x 10 (RH-12SQH/18SQH
series)
(2)
No.2 arm cover-L
1
Hexagon socket bolts, 3-M4 x 10
(3)
J1 cover
1
Hexagon socket bolts, 3-M4 x 10
(4)
Base cover
1
Hexagon socket bolts, 2-M4 x 10
(2)No.2 arm cover-L
Ｊ4 axis（shaft）
(4)Base cover
(3)J1 cover
(1)No.2 arm cover-U
(b)
(b)
(a)
(a)
(a)