R
epair
P 2 / 8
< 1 > Lubrication
Apply MAKITA grease N. No.1 to the following portions designated by black triangle to protect
parts and product from unusual abrasion.
Sleeve 18
8
8
10
13
10
13
19
19
7
Hammer case
Anvil
Hammer
Spindle
Spring holder
Spur gear 19-41
* The surface which contacts sleeve 18.
* The outer surface which contacts the inner surface of 8 Hammer
* The inner surface where contacts 10 Spring holder.
* The inner surface where contacts 13 Spindle.
* The wing portion which is percussed by cam portion of 8 Hammer.
* The cam portion which transmits the percussion to 7 Anvil.
* The edge portion where 19 pcs.of steel ball 4 roll.
* The groove where 2 pcs. of steel ball 6.4 roll.
* The gear portion
* The teeth portion
* The surface where flat washer 8 contacts.
* The joining hole in which 13 Spindle is inserted.
19 cps. of
steel ball 4
Steel ball 6.4
Compression
spring 28
Position
No.
Parts item
Portion
to be lubricated
Amount : g
( oz )
7
Flat
washer 8
0.5 (0.02)
0.5 (0.02)
0.5 (0.02)
1.0 (0.04)
0.1 (0.01)
10 .0 (0.35)
10 .0 (0.35)
2.0 (0.08)
3.5 (0.13)
3.5 (0.13)
3.0 (0.12)
3.0 (0.12)
Fig. 1
< 2 > Removing armature
Fig. 2
Cup washer
Motor housing
Hammer case cover
Urethane ring 5
Hex socket
head bolt M5x50
Hammer case
Armature
Mechanical section
( 1 ) Remove brush holder cap and carbon brush.
See Fig. 2.
( 2 ) Remove hex socket head bolt M5x50, cup
washer and urethane ring 5 each 4 pcs.
See Fig. 2.
( 3 ) Separate mechanical section (hammer case
and hammer case cover) from motor
housing. Then, armature can be separated
from motor housing together with
mechanical section. See Fig. 2.
< Note >
If the armature remains in the motor housing
at the step (3), it can be removed by knocking
the edge of motor housing with plastic hammer.