turn on steady until the key position is changed. The
light will blink if the controller detects a malfunction in
the electrical system. The light will stop blinking and
automatically reset when the key switch is turned to the
Off position once the fault has been resolved.
Figure 47
1.
Diagnostic light
When the controller diagnostic light blinks, one of the
following problems has been detected by the controller:
•
One of the outputs has been shorted.
•
One of the outputs is open circuited.
Using the diagnostic display, determine which output
is malfunctioning; refer to Checking the Interlock
Switches.
If the diagnostic light is not illuminated when the key
switch is in the On position, this indicates that the
electronic controller is not operating. Possible causes
are as follows:
•
Loop-back is not connected.
•
The light is burned out.
•
Fuses are blown.
•
It is not functioning correctly.
Check the electrical connections, input fuses, and
diagnostic light bulb to determine the malfunction.
Ensure that the loop-back connector is secured to the
wire harness connector.
Diagnostic Ace Display
The machine is equipped with an electronic controller
which controls most machine functions. The controller
determines what function is required for various input
switches (i.e. seat switch, key switch, etc.) and turns
on the outputs to actuate solenoids or relays for the
requested machine function.
For the electronic controller to control the machine as
desired, each of the input switches, output solenoids,
and relays must be connected and functioning properly.
Use the Diagnostic ACE display to help verify and
correct electrical functions of the machine.
Checking the Interlock
Switches
The purpose of the interlock switches is to prevent the
engine from cranking or starting unless the traction
pedal is in the Neutral position, the Enable/Disable
switch is in the Disable position, and the Lower
Mow/Raise control is in the Neutral position. In
addition, the engine should stop when the traction
pedal is pressed with operator off of the seat or if the
parking brake is left engaged.
If safety interlock switches are disconnected
or damaged the machine could operate
unexpectedly causing personal injury.
•
Do not tamper with the interlock switches.
•
Check the operation of the interlock
switches daily and replace any damaged
switches before operating the machine.
Verifying the Interlock Switch Function
1. Park the machine on a level surface, lower the
cutting units, stop the engine, and engage the
parking brake.
2. Remove the access panel from the side of the
control arm.
3. Locate the wire harness and connectors near the
controller (Figure 48).
36
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Страница 56: ...Schematics Hydraulic Schematic Model 5210 5410 Rev A 56 ...
Страница 57: ...Hydraulic Schematic Model 5510 5610 Rev A 57 ...
Страница 58: ...Electrical Schematic Rev 58 ...
Страница 59: ...Notes 59 ...
