Diode Assembly (Kohler Engine)
The diode assembly on Kohler powered Workman ve-
hicles is used for circuit protection from voltage spikes
that occur when the starter solenoid is de–energized.
2
The diode assembly plugs into the vehicle wiring har-
ness (see Workman 3100 electrical schematic in Chap-
ter 11 – Electrical Schematics).
3
1
Testing
Figure 22
The diode assembly can be tested using a digital multi-
meter (diode test or ohms setting) and the table to the
right.
1.
2.
Diode
Male terminal
3.
Female terminal
Multimeter
Red Lead (+)
on
Multimeter
Black Lead (–)
on
Continuity
Terminal Blade Terminal Blade
Male
Female
Male
YES
NO
Female
Rear PTO Switch (Optional)
On vehicles equipped with the optional rear PTO kit, the
rear PTO switch is located in the rear PTO housing
mounted on the top of the transaxle. The Rear PTO
switch is normally closed and opens when the PTO is en-
gaged.
1
Test the switch by disconnecting the wiring connector
and connecting a continuity tester across the two termi-
nals. With the engine off, move PTO lever to OFF posi-
tion – there should be an indication of continuity. Move
PTO lever to ON – there should be no continuity.
Figure 23
1.
Rear PTO switch
Electrical System
Page 8 – 16
Workman 3000/4000 Series
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