Makita HR2021 Technical Information page 6

R
epair
< 9 > Disassembling impact bolt
1. Referring to "< 7 > Disassembling tool holder section" at page 5, disassemble ring spring 28, washer 30,
compression spring 31 and spur gear 51 from tool holder. See Fig. 4, Fig. 4A, 4B, 4C, D and 4E.
2. Push the cut portion of ring spring 28 to the out side of the hole as illustrated in Fig. 5 and Fig. 5A.
Cap 35 side
3. Hold tool holder with "No.1R038 Armature holder" and vise as illustrated in Fig. 5B. Insert screwdriver
between ring spring 28 and O ring case. and push out ring spring 28 from the inner groove as illustrated in Fig. 5C.
Cap 35 side
No.1R038
Armature holder
Inner
housing side
Ring spring 28 showing its
cut portion
O ring case
Push the cut portion to
the out side of the hole.
Fig. 5
Cap 35 side
Vise
Fig. 5B
Ring spring
O ring case
Fig. 5A
Push out ring spring 28 from
the inner groove.
Inner groove of
tool holder
O ring case
Ring spring 28
off from inner groove
P 6 / 18
Inner
housing side
Inner housing side
Cap 35 side
Inner
housing side
Fig. 5C