5 TROUBLESHOOTING
28
5.2
CONTROLLER LAMPS _____________________________________________________
The controller is a solid state device that monitors and controls
electrical functions. The controller receives input signals from
various switches and sensors throughout the machine and
transmits output signals to operate relays, solenoids, and
warning lights. It controls and resets timers and contains built
in logic to control certain machine functions.
Each input and output signal is displayed through lamps
located on top of the controller. A closed input switch indicates
an active circuit and will turn an input lamp on, an open switch
an inactive circuit and will turn a lamp off. Outputs are active
when their lights are on.
It is important to note that in some cases a lamp or group of
lamps must be on or off for a condition to be true. For example,
to start the mower the Mow Switch must be off (lamp 8 off)
while the Neutral Start Switch (lamp 12), Brake Switch (lamp
6), and Fuel Valve Hold coil (lamp 27) must be on.
Controller Functions by Lamp Number
Lamp On - Circuit is active
Lamp Off - Circuit is inactive
INPUTS
OUTPUTS
Lamp
Circuit
Lamp
Circuit
1,2,3,4
Program Select (2, 3 and 4 are not used)
19
Hydraulic Filter Light
5
Brake Switch
20
Hydraulic Oil Level Light
6
Seat Switch
21
Not Used
7
Reel Level Switches
22
Glowplug Light
8
Mow Switch
23
Lower Solenoid
9
Joystick - Lower
24
Raise Solenoid
10
Joystck - Raise
25
Glowplug Relay
11
Hydraulic Oil Level Switch
26
Start Relay
12
Neutral Switch
27
Fuel Solenoid - Hold
13
Backlap Switch
28
4WD Solenoid
14
Keyswitch - Glowplug
29
Audible Alarm
15
Keyswitch - Start
30
Mow Solenoid
16
Joystick Active
31
Fuel Sonenoid - Pull
17
Hydraulic Filter Switch
32
Power-Ignition
18
Engine Oil Pressure Switch
33
Power-Lights
