Cub Cadet 1000 SERIES Service Manual page 84

Series 1000 and 1500
39.11. The lighting circuit is hot whenever the engine
is running. It does not draw from the battery, but
runs directly off its own circuit on the alternator.
See Figure 39.11.
Headlights
Figure 39.11
• The blue wire carries alternator current, the
green wire is a ground.
39.12. The 20A fuse is located near the RMC module /
key switch assembly, under the dash panel. See
Figure 39.12.
20 Amp fuse
Figure 39.12
• The solid red wire feeds the fuse with power
picked-up from the battery cable connection to
the "hot" post of the starter solenoid.
• The red wire with white trace carries fused
power to the B terminal on the key switch.
NOTE: On units with an auxiliary power point a
second red wire with white trace will supply a 5
amp service to the power point.
CAUTION: DO NOT PUT A CIGERETTE
LIGHTER IN THIS POWER POINT. This will
cause the fuse to blow and can seriously dam-
age the harness.
• A failed fuse will disable most of the tractor's
electrical system.
• Remember that a failed fuse has done it's job of
protecting the rest of the circuit from an over-
load. If a fuse blows, figure-out why and correct
the core problem before returning the tractor to
service.
39.13. Refer to the engine manufacturer's specifica-
tions to test the engine and charging systems.
39.14. Ground issues: It is relatively easy to track
where power is on the positive side of the sys-
tem. The negative side is frequently neglected,
though it may account for just as many electrical
problems as the positive side.
39.15. Most technicians' first instinct when testing
ground paths is to set the multi meter to the
Ohms scale (Ω) and look for continuity using
resistance as a measurement. This method
does give a rough idea if the circuit is complete
or not.
39.16. Resistance is not the most definitive scale for
identifying circuits that are complete, but have
reduced current carrying capacity because of
bad connections, physical damage, or corrosion.
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