Makita BTD042 Technical Information page 8

R
epair
< 4 > Removing hammer
(1) Press down hammer with 1R045: Large gear extractor
by turning the handle.
(2) Adjust the opening for steel ball inserting to the cam groove top of spindle.
(3A) Take 2 off steel balls 5.6 from spindle. (Mod.BTD062, BTW072)
(3B) Take 2 off steel balls 4.8 from spindle. (Mod.BTD042)
< Note > 29 pcs. of steel balls 3 are installed in hammer.
Check the quantity when assembling.
1R045 Large gear extractor
L= 85mm
L=105mm
L=130mm
W: The maximum opening width
is 170mm.
(4) Apply MAKITA grease N No.2 to the position No. 1, 2,
3 and 4, when assembling.
(1) Spindle : 0.5g
(2) Steel ball 3 : 0.5g
(3A) Steel ball 5.6 (BTD062, BTW072) : 0.5g
(3B) Steel ball 4.8 (BTD042) : 0.5g
(4) Spur gear 16 : 2.0g
Steel ball 4.8 x 2pcs. (BTD042)
Steel ball 5.6 x 2pcs. (BTD062, BTW072)
L
W
(3A) Steel ball 5.6 x 2 (BTD062, BTW072)
(3B) Steel ball 4.8 x 2 (BTD042)
(2) Steel ball 3 x 29 pcs.
Cam groove top
of spindle
Opening for steel
ball inserting
Steel ball 3 x 29 pcs.
(4) Spur gear 16
Fig. 4
Fig. 5
P 8 / 10
Spindle
Hammer
(1) Spindle
Hammer
(4) Spur gear 16