-2-
Fig. 2 • Disassembly of the crank shaft section
(3) Remove the two Bolts M5 x 16
[59]
and five Screws D4 x 25
[90]
. Remove handles (A) and (B) of
Handle (A). (B) Set
[111]
, four Bolts M5
[105]
and Back Cover
[78]
. Remove the six Bolts M6 x 40
[54]
,
Gear Cover
[38]
, and Counter Gear
[63]
. At this time, be very careful not to damage the mating
surfaces of the Gear Cover
[38]
and Inner Cover
[42]
. Insert a flat-blade screwdriver or a similar tool
into the air vent of the Inner Cover
[42]
and raise the Inner Cover
[42]
. Then the Inner Cover
[42]
,
Armature Ass’y
[70]
and Crank Shaft
[48]
can be removed as a single unit. At this time, be very careful
not to damage the Fan
[69]
.
(4) As illustrated in Fig. 1, support the Inner Cover
[42]
with an appropriate tubular jig, and push down on
the end surface of the armature shaft with a hand press to separate the Armature Ass’y
[70]
from the
Inner Cover
[42]
.
2. Disassembly of the crank shaft section
(1) Remove the four Bolts M5 x 16
[47]
which fix the Bearing Cover
[46]
. Then, as illustrated in Fig. 2,
support the lower surface of the Inner Cover
[42]
with an appropriate tubular jig, align an appropriate
steel rod with the end surface of the Crank Shaft
[48]
, and press down on the steel rod with a hand
press.
(2) Remove the Ball Bearing 6302VV
[39]
, Distance Ring (B)
[41]
, Final Gear
[40]
, Feather Key 4 x 4 x 12
[51]
, and Crank Shaft
[48]
from the Inner Cover
[42]
.
(3) Loosen three Bolts M5 x 16
[47]
, then take out Bearing Cover (A)
[65]
and Ball Bearing 6203DD
[67]
.
3. Removal of the mouth
(1) Remove six Bolts M8 x 30
[5]
.
(2) Remove the Front Cover
[8]
from the Cylinder Case
[19]
.
(3) Remove the Second Hammer
[7]
, Shank Sleeve
[13]
, Damper (A)
[11]
, Mouth
[14]
, Mouth Cover
[15]
,
Mouth Washer (A)
[16]
, and Urethane Ring (A)
[17]
as a single unit.
NOTE: When the Mouth [14] needs to be replaced with new one, use the new Mouth [14] painted
white.
[48]
Press the end surface of the crank shaft
by fitting a steel rod with a hand press.
Steel rod
[39]
[40]
[41]
[42]
[44]
[45]
Tubular jig
