Dis
1
、
拆
栓
R
sh
cy
注意:
Note
螺栓上
There
2
、
拆
2
R
pa
(
φ
3
、
取
R
ar
ro
用气门
然后放
簧和气
Use th
spring
valve c
remov
and th
注意
Note
1.
2.
汽
sassembling
拆下缸头盖上
栓
M14×1
。
Remove the 2
haft locating
ylinder head
:
:
上带有
O
形
e are O-ring
拆下顶部
2
颗
颗铜垫片
(
φ
Remove the
an-head bo
φ
6.2×1×
φ
10
取下进、排气
Remove the
rm shafts a
ocker arms.
气
Disassemb
门拆卸器将气
放松气门拆卸
气门。
he valve extr
and remov
collet; then l
ve the valve
he valve.
意:
e:
为了防止气
份的压缩气
即可;
To avoid p
valve sprin
excessively
valve collet
拆下的全部零
配时达到原来
All the par
marked so
original loc
汽缸头盖的分
g of Cylind
上
2
颗
NC25
2 pieces of N
g plate bolts
d cover.
圈
φ
9.4×2.4
gs (
φ
9.4×2.4
颗
GB16674
小
6.2×1×
φ
10)
e 2 small
lts and the
0).
气摇臂轴,进
intake and
s well as in
气缸头的分解
bling of Cyl
气门弹簧压下
卸器,取下气
ractor to pre
ve the valve
loosen the v
spring retai
门弹簧产生永
门弹簧,只需
permanent
ng, it shall
y but as mo
t can be rem
零件均应作好
来的装配位置
rts remove
as to mou
cations dur
共
分解
er Head Co
50
摇臂轴定位
NC250 rock
s (M14×1) o
4
。
4) on the bol
小盘螺栓
M6
)
。
GB16674 M
2 copper g
进、排气摇臂
d exhaust
ntake and ex
解
inder Head
,拆下气门锁
门弹簧座,气
ess down the
e and remo
valve extract
iners, valve
永久变形,不
需能拆下气门
deformatio
not be pre
oderately a
moved.
好标记,确保
置。
ed shall be
nt them to
ing assemb
共
50
页
第
Page 9 of 5
over
位板螺
ker arm
on the
ts.
6×18
,
M6×18
askets
。
rocker
xhaust
d
锁夹;
气门弹
e valve
ove the
tor and
spring
不能过
门锁夹
on of
essed
as the
保在装
well
their
bling.
9
页
0
s
小盘
Sma
铜垫
φ
6.2
摇臂轴定位板螺栓
M
M14×1 bolts for roc
shaft locating plate
盘螺栓
M6×18
all M6×18 pan-head
垫片
φ
6.2×1×
φ
10
2×1×
φ
10 copper wa
M14×1
cker arm
e
d bolts
ashers