Makita HR4040C Technical Information page 9

2. When assembling chuck ring, chuck cover and sleeve 46, the following concaves and convexes have to meet
each other. (see Fig.13)
3 outer concaves of chuck ring
3 inner convexes of chuck cover
3 concaves of sleeve 46 (However, the concave with triangle mark is not included in these 3 ones.)
3. When installing tool holder cap on the above sleeve 46, the following convex and concave have to meet each other.
The concave with triangle mark inside of sleeve 46
The convex of the tool holder cap
3 concaves of Sleeve 46
3 inner convexes
of Chuck cover
3 outer concaves
of Chuck ring
4.
< Remark >
Install a hammer bit on the machine, and slide the sleeve 46
toward the tool holder cap.
5. Make sure whether the installed hammer bit can be locked firmly, or not.
6. Make sure whether the installed hammer bit can be removed from the machine by sliding down the chuck cover.
(6) Removing the tool holder section
1. Seal case can be removed with a slotted screwdriver easily.
(see Fig.14)
2. Pull out tool holder after removing retaining ring R56.
(see Fig.15)
Tool holder
Seal case
Fig. 14
Convex of Tool holder cap
Triangle mark on
the concave of
Sleeve 46
Fig. 13
Retaining ring R56
Tool holder
Fig. 15