37
No
Yes
Replace seat
switch
Parking brake
'OFF', operator
'OFF' seat, all
wires are
connected to
switches. You
are testing a
ground circuit.
All tests will be
to the battery
positive (hot)
side.
Key switch is
'OFF' for each
test until
otherwise noted.
Do both yellow
and green wires
on brake switch
show ground
when tested
(figure 34)?
Replace parking
brake switch.
MODEL 718D, 721, 721D and 725
(All Kubota engines)
ENGINE STARTS, BUT DIES
WHEN LEVERS ARE BROUGHT IN OR PTO SWITCH IS ENGAGED
Green
Yellow
Brake switch
view.
Figure 34
NOTES:
If the engine will crank and
start, control relay A and control
relay B cannot be the problem.
The PTO switch, the left steer-
ing switch, and the right steer-
ing switch cannot be the prob-
lem. Therefore, the only
switches that can cause this
symptom are the seat switch
and the parking brake switch.
NC NO
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