Shibaura SG280E, Руководство по ремонту

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9) HST neutral switch (38520 1260)
(1) Installation location and operation
The switch is installed on the back of the
frame.
Electricity flows as long as the HST pedals is
not pressed. If the driver accidentally steps on
the pedal, the engine cannot be started.
(2) Removing the switch
1. Remove the switch wiring.
2. Remove the nut, and then remove the switch.
(3) Inspection
1. Connect a tester to the switch wiring.
2. Check that there is continuity while the tip of
the switch is not pressed (OUT).
3. Check that there is no continuity while the tip
of the switch is pressed (IN).
4. If the above conditions are not met, replace
the switch.
10) Water temperature switch (38572 0360)
(1) Installation location and operation
The water temperature switch is installed on the
engine thermostat case.
If the engine starts to overheat, the water
temperature warning lamp on the gauge panel
will come on to warn the driver of overheating.
(2) Removing the switch
1. Remove the switch wiring.
2. Drain the antifreeze, and then remove the
switch.
(3) Inspection
1. Use the procedure shown in the figure on the
right to measure whether the water
temperature switch changes from OFF to ON
at 110 ± 3 ° C or more.
2. Confirm that the warning lamp comes on
when the connection terminal to the water
temperature switch is short circuited. (Check
that the bulb is not burnt out.)
3. If the above conditions are not met, replace
the switch and/or lamp.
Fig.4-2-22
Fig.4-2-23
Fig.4-2-19
Fig.4-2-20
Fig.4-2-21