Troubleshooting – Cub Cadet Yanmar 3TNV72 User Manual
Page 280

TROUBLESHOOTING
T
N
V IDI Service Ma
nual
13
-1
7
Troubleshooting Charts
T
rou
ble
Symp
to
m
S
ta
rt
in
g
Pro
b
le
m
Insufficient
En
gine
Ou
tp
ut
Poor
Exh
aust
Co
lo
r
High
Knoc
king
Sou
nd
Du
ring
Co
mb
ustion
Abnorm
al Engine
Sound
Uneven
Combust
ion
Sound
Engine
Surging
Excessive Engine Vibration
Difficulty
in Returning to Low Speed
Excessive Fuel
Consumption
En
gine
O
il
Excessive Blow-by
Ga
s
Engine
Coo
lant
Air
In
ta
ke
Exhaust
Temper
atur
e Rise
Cor
rect
ive Act
ion
Re
fe
re
nce Pag
e
s
Engine
Does Not
Star
t.
Eng
ine
Starts
bu
t St
op
s
Soon.
Exha
ust
Color
Du
ri
n
g
Wo
rk
Du
ring
Idlin
g
Durin
g Work Oper
ation
Excessive O
il Co
nsumption
Dilution by Diesel Fuel
Oil with Water
Low Oil Pres
sure
Overhe
at
Low Water
T
empera
ture
Pres
sure
Drop
Pressure Ris
e
Exhau
st
Smoke
Ordina
ry
Whit
e
Black
Whit
e
Black
Cause
None
Little
Much
Air/Exhaust Gas System
Clo
gge
d Air Filt
er
O
O
O
O
O
C
le
an
Air
F
ilte
r.
See
“Clean
Air
Cle
ane
r
Elem
ent
”
on
p
a
ge
5
-2
8.
En
gin
e
Used
at
High
T
emp
er
at
ur
es o
r
at
H
igh
Alt
itu
de
OO
O
O
O
St
udy Ou
tp
ut
Dr
op a
nd Lo
ad
Ma
tchin
g
.
Clo
gge
d Exhau
st
Pipe
O
O
O
O
Cle
an Exhau
st
Pipe
.
Elect
ric
al Syste
m
S
tar
tin
g
M
o
to
r
De
fe
ct
O
Re
pair
or
Rep
lace St
at
er Mo
to
r.
Se
e “
S
ta
rt
er
M
o
tor
”
on
p
a
g
e
1
0-
9.
A
lter
n
ato
r De
fe
ct
O
Rep
a
ir
o
r Rep
lace Alte
rn
at
or
.
Se
e “Remo
v
al of
Alt
e
rn
a
to
r”
o
n
p
age
11-
12
. or
Re
moval of
Dyna
mo
o
n pag
e
11
-20
Open-C
ircuit in Wiring
O
Re
pa
ir Op
en
C
ircu
it.
Ba
tt
e
ry Vo
lt
age
Dr
op
O
In
sp
ect an
d Chan
ge t
h
e
Ba
tt
er
y.
Se
e “Che
ck Bat
te
ry”
o
n
pag
e
5
-23.
TNV_
IDI_
Serv
iceM
anua
l_(3
TNV72
for
YN
only
).bo
ok
17 ペ
ー
ジ
20
0
7年
1
1
月29
日 木
曜日
午後2時
58分