Makita DHR263 Technical Information page 11

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epair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Motor section, Switch (cont.)
DISASSEMBLING of Motor section
Fig. 23
When removing Ball bearing 6001DDW, remove Retaining ring WR12 from Armature shaft in advance.
Then remove Ball bearing 6001DDW together with Sleeve 12 using 1R269.
Note: Retaining ring WR12 is firmly seated in the groove of Armature shaft, and the groove is so small that
the ring cannot be removed with a pair of commercial retaining ring pliers only.
Therefore, slip the gap of the ring outside of the groove using 1R004 or 1R291, then remove the ring
using commercial retaining ring pliers or 1R003 with 1R212.
Retaining ring
WR12
Ball bearing
6001DDW
ASSEMBLING of Motor section
(1) Assemble Ball bearing 6001DDW and Sleeve 12 to Armature. Then, secure them with Retaining ring WR12. (Fig. 23)
(2) Assemble Armature to Inner housing as drawn in Fig. 24.
Fig. 24
1. When inserting Armature into Inner housing, do not fail to pass
Armature through Yoke unit in advance.
Note: Yoke unit is not directional when assembled with Armature.
2. Without enough care, Ball bearing 6001DDW on the drive-end of
Armature may often be incompletely seated in the bearing room of
Inner housing. Therefore, fit the bearing completely into the bearing
room in Inner housing while carefully turning Armature by hand
to engage the gear of Armature shaft with Spiral bevel gear 26 in
Inner housing. Then fix the bearing with Bearing retainer and two
M4x12 Hex socket head bolts.
Note: Be sure to apply adhesive (ThreeBond 1321B/1342 or Loctite
242) to the threads when reusing M4x12 Hex socket head bolts
removed from the machine because they are threadlocking bolts.
(3) Before assembling Housing R. Be sure that the parts drawn in Fig. 25 are assembled to Housing L.
Fig. 25
Be sure that the five parts shown below are set in place before mounting Housing (R) to Housing (L).
4x18 Tapping screw (4 pcs.) for fastening Handle (L), (R)
Terminal (2 pcs.)
1R004 or 1R291
groove of
Armature shaft
Plate (4 pcs.)
1R003with 1R212
M4x12 Hex socket head bolt
with adhesive (2 pcs.)
Bearing retainer A
Compression spring 10 (2 pcs.)
Light circuit
P 11/ 22
1R269
Sleeve 12
Armature