Grasshopper 721D User Manual

39
NOTES:
1. All tests are made with wires in
place on their respective
switches.
2. Problem is in the 'HOLD' circuit
of the fuel solenoid.
3. Relay 'A' is the relay with 1
yellow, 1 black, and 2 red
wires.
MODEL 718D and 721D
(Kubota diesel engines)
ENGINE STARTS, BUT DIES
WHEN KEY SWITCH IS RELEASED
Figure 37
IN RUN POSITION
1
17
30
YE
2
4
HOLD
19
50
AC
-
+
3
COMM
RELAY A
PULL
TO SAFETY
SWITCHES
WH
GR
BK
STARTER
Battery Cable
FUEL
SOLENOID
FUEL
SOLENOID
MODULE
IGNITION
FUSE
MAIN
FUSE
KEY
SWITCH
RD
RD
RD
RD
RD
BK
BK
BK
BK
IN-LINE
FUSEHOLDER
Yes
No
No
Yes
continued
A
Does voltage
appear from
'HOLD' wire of
fuel solenoid to
ground?
Check fuel
solenoid plug
connection
Does voltage
appear from
terminal 4 of fuel
solenoid module
to ground?
Replace fuel
solenoid module.
Problem is fuel
solenoid or
binding linkage.
Solenoid 'HOLD'
to 'COMM' wires
should test
approximately
14 to 16 ohms
resistance.

Grasshopper 721D Specifications

General

Brand	Grasshopper
Model	721D
Category	Lawn Mower
Language	English