Hour Meter; Electronic Control Unit (Ecu); Parking Brake Switch - Toro Reelmaster 5200-D Service Manual

Hour Meter

The meter is located under the control panel and inside
the control console.
1. Connect the positive (+) terminal of a 12 VDC source
to the positive terminal of the hour meter.
2. Connect the negative (-) terminal of the voltage
source to the other terminal of the hour meter.
3. The hour meter should move a 1/10 of an hour in six
minutes.
4. Disconnect voltage source from the hour meter.

Electronic Control Unit (ECU)

The Toro electronic control unit (ECU) senses the condi-
tion of various switches, such as the seat sensor, cutting
unit down switches, traction neutral switch, etc., and di-
rects power output to allow certain machine functions,
such as engine run, cutting units engage, etc.
To test the controller, make sure it can check, verify, re-
trieve, and clear information as described in the "Diag-
nostic Ace Display" section of this chapter. The
controller may be damaged if an attempt is made to test
it with an electrical test device, such as a volt-ohm meter.
IMPORTANT: Before performing welding on the ma-
chine, disconnect both battery cables from the bat-
tery, disconnect both wire harness connectors from
the electronic control unit and disconnect the termi-
nal connector from the alternator to prevent dam-
age to the electrical system.

Parking Brake Switch

The parking brake switch is a proximity switch located
inside the steering tower. When functioning properly,
this feature kills the engine when the forward/reverse
pedal is depressed and the parking brake is On.
For unit serial number 80001-209999999 the switch is
closed to ground (orange/brown wire to black wire)
when the parking brake is On.
For units serial number 210000001 and Up, the switch
is closed to ground (orange/brown wire to black wire)
when the parking brake is Off.
Electrical Systems
2
1. Electronic control unit
(ECU)
1. With the parking brake engaged, separate the termi-
nal connector and measure resistance between the
switch connector pins. Resistance should read as a
closed circuit (80001-209999999) or as an open circuit
(210000001 and Up).
2. Release the parking brake and measure resistance
between the switch connector pins. Resistance should
read as an open circuit (80001-209999999) or as an
closed circuit (210000001 and Up).
3. Adjust the position of the proximity switch as neces-
sary to obtain the above results.
Page 5 - 26
Hobbs
QUARTZ
1
0 0 0 0 1
10
HOURS
+
BACK
Figure 34
1
Figure 35
2. Control panel
Reelmaster 5200-D/5400-D