Makita HM1202 Technical Information page 4

(2) Take off ring spring 25 and retaining ring WR-45
with repairing tool No.1R212.
Then, the spare parts on the chuck section can
be dismounted in the order from the bit side.
<3> Repairing of piston and striker
Take off only handle, not remove controller cover.
(Dismounting)
(1) Take off change ring after dismounting of chuck section.
And then, take off ring spring 46
with pawl for retaining ring .
Dismount housing cover.
Housing cover
(2) Loosen 4 pcs. of hex socket head bolt M8x30.
Then barrel can be removed together with
tool holder.
Retaining ring WR-45
Hex socket head bolt M8x30
(4 pcs.)
Barrel
P 4 / 14
1R212
Cup Washer 45
Compression spring 55
Ring spring 46
Pawl for retaining ring