
CHASSIS ELECTRICAL –
Combination Meters
CHASSIS ELECTRICAL –
Combination Meters
54-22
COMBINATION METERS
SERVICE SPECIFICATIONS
Items
Standard value
Limit
Speedometer
Allowable indication range km/h
(Speedometer indication error to be
40
37 – 45
–
(Speedometer indication error to be
with –6% to
+
10%)
80
75 – 88
–
)
120
113 – 132
–
160
150 – 176
–
Pointer fluctuation km/h (at vehicle speeds of higher than 35
km/h)
–
±
3
Tachometer indica-
tion error r/min
700
All types of tachometer
±
100
–
tion error r/min
3,000
Meters measurable up to 6,000 rpm and
meters measurable up to 8,000 rpm
+
150
–
Meters measurable up to 9,000 rpm and
meters measurable up to 10,000 rpm
+
225
– 100
–
4,750
Meters measurable up to 6,000 rpm
±
160
–
5,000
Meters measurable up to 8,000 rpm
±
250
–
Meters measurable up to 9,000 rpm and
meters measurable up to 10,000 rpm
+
325
– 125
–
6,000
Meters measurable up to 8,000 rpm
±
300
–
7,000
Meters measurable up to 9,000 rpm and
meters measurable up to 10,000 rpm
+
400
– 100
–
8,000
Meters measurable up to 10,000 rpm
+
400
– 0
–
Fuel gauge unit
resistance
Ω
Main tank
Float point F
1.8
±
1.2
–
resistance
Ω
Float point E
65.2
±
4
–
Sub tank
Float point F
1.2
±
0.8
–
Float point E
44.8
±
3
–
Fuel gauge unit
float height mm
Main tank
Float point F
16.4
–
float height mm
Float point E
122.6
–
Sub tank
Float point F
17.5
–
Float point E
134.6
–
Engine coolant temperature gauge unit resistance (at 70
_
C)
Ω
104
±
13.5
–
Fuel gauge resis-
tance
Ω
Power supply and earth
192
±
19.2
–
tance
Ω
Power supply and fuel gauge
89
±
8.9
–
Fuel gauge and earth
103
±
10.3
–
Engine coolant
temperature gauge
Power supply and earth
187
±
18.7
–
temperature gauge
resistance
Ω
Power supply and engine coolant temperature gauge
90
±
4.5
–
Engine coolant temperature gauge and earth
247
±
24.7
–