Hour Meter; Diode Assemblies - Toro Sand Pro 5040 Service Manual

Hour Meter

The hour meter used on the machine records the
amount of time that the ignition switch is in the ON posi-
tion.
Testing
1. Remove knob from lift lever.
2. Remove four (4) screws and flat washers that secure
control panel to console (Fig. 10). Lift control panel, un-
plug wire harness connector from hour meter and re-
move control panel from machine.
3. Connect the positive (+) terminal of a 12 VDC source
to the positive (+) terminal of the hour meter.
4. Connect the negative (–) terminal of the voltage
source to the other terminal of the hour meter.
5. The hour meter should move 1/10 of an hour in six
minutes.
6. Disconnect the voltage source from the hour meter.
7. Connect wire harness connector to hour meter and
position control panel to console. Secure control panel
with four (4) screws and flat washers (Fig. 10).
8. Install knob to lift lever.

Diode Assemblies

Diodes D1 and D2 provide logic for the interlock system.
The diodes plug into the wiring harness under the con-
sole control panel.
Testing
The diode (Fig. 12) can be tested using a digital multime-
ter (diode test or ohms setting) and the table below.
Multimeter Multimeter
Red Lead (+) Black Lead (–)
on Terminal on Terminal
Female
Male Female
Electrical System
Continuity
Male YES
NO
5
4
1. Console
2. Lift lever knob
3. Control panel
4. Flat washer (4 used)
Hobbs
QUARTZ
0 0 0 0
HOURS
FRONT
1
1. Diode
2. Male terminal
Page 5 – 10
7
6
Figure 10
5. Screw (4 used)
6. Panel decal
7. Hour meter
+
1
1
10
Figure 11
Figure 12
3. Female terminal
Sand Pro & Infield Pro 3040/5040
1
2
3
BACK
2
3