5-57
ELEC
TROUBLESHOOTING CHART
THE ECONOMY CONTROL DOES NOT OPERATE PROPERLY
1. Economy control engine speed
9
Check that the economy control switch is
on.
9
Start the engine (with no load).
9
Measure the engine speed.
Economy control engine speed:
2300–2400 r/min
Adjust the engine speed.
(Refer to “ADJUSTING THE ENGINE
SPEED (Except for EF7000/EF7200)” on 2-15)
MEETS
SPECIFICATION
OUT OF
SPECIFICATION
ECONOMY CONTROL SYSTEM
(EF7000E/EF7200E/EF7200DE)
Inspection steps:
1. Economy control engine speed
2. Economy control voltage
3. Economy control switch
4. Economy control solenoid voltage
5. Economy control solenoid resistance
TIP
9
The economy control system will not function if a load of 0.8 A or less is used.
9
Remove the following part(s) before troubleshooting.
1) Control box
2) Control panel
3) Fuel tank
9
Use the following special tool(s) for troubleshooting.
Analog pocket tester:
YU-03112-C
Pocket tester:
90890-03112
Digital tachometer:
YU-39951-B, 90890-06760