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Groundsmaster 5900/5910Page 5 -- 60Electrical System
Diode Assembly
A diode assembly is used in the Groundsmaster 5900
wire harness (Fig. 109). The diode is used for circuit
protection from voltage spikes thatoccur when the start-
er solenoid is de--energized. The diode plugs into the
wire harness near the fuel water separator.
Testing
The diode can be tested using a digital multimeter
(diode test or ohms setting) and the table below.
Multimeter
Red Lead (+)
on Terminal
Multimeter
Black Lead (--)
on Terminal
Continuity
Female Male YES
Male Female NO
Figure 108
1. Fuel water separator 2. Diode
2
1
Figure 109
1. Diode
2. Male terminal
3. Female terminal
1
2
3
Audible Alarm
The audible alarm sounds to notify the operator when a
machine problem exists. Electrical current for the alarm
is provided as an output from the slave Toro Electronic
Controller.The audible alarm is locatedto the right of the
operatorseatunderthepowercenter console (Fig. 110).
Testing
IMPORTANT: Make sure to observe polarity on the
alarm terminals when testing. Damage to the alarm
may result from an improper connection.
1. Make sure ignition switch is OFF. Remove key from
ignition switch.
1. Remove power center cover from operator platform
to access audible alarm.
2. Isolate alarm from the circuit. Correctly connect
12VDC source to the terminals (Fig. 111).
3. Alarm should sound. Remove voltage source from
the alarm. Reconnect alarm to the c ircuit.
4. Install and secure power center cover.
1. Cover attachment screw 2. Audible alarm
Figure 110
2
1
1. Top view
2. Bottom view
3. Positive (+) terminal
4. Negative (--) terminal
Figure 111
1
2
3
4