21
18.5. The PTO switch is located on the right console
behind the key switch. This switch accomplishes
many tasks, it is part of the start circuit, PTO run
circuit, and reverse safety circuit.
See Figure 18.5.
- The first set of terminals, start circuit, are the orange/
white wire connecting to the brake switch and the
orange/black wire going the neutral switches. Of
course, the PTO switch needs to be in the off position
to start the unit.
-The second set of terminals, reverse safety circuit,
consists of yellow/black wire connecting to the terminal
“30” of the PTO relay and the yellow/white wire which
connects to terminal “87” on the brake relay and neu-
tral switches.
-The third and final set of terminals, PTO run circuit,
consists of blue wire from the reverse safety switches
and a red wire from the run line.
NOTE:
If you are checking for power at the PTO
switch, you should have 12 volts at the red wire
and 0 volt at the blue wire with the PTO switch
turned off. With the PTO switch on you will have
12 volts at both the blue and red wires. Be sure
all other condition are being met for the PTO to
run properly.
Figure 18.5
18.6. The KEY SWITCH is located on right console in
front of the PTO switch.
-There was a midyear change to the key switch. Units
with serial number before 1F014G20062 should have
key switch 725-04019 (Delta switch number 6900-31P)
and Harness 725-04170. When the old key switch is
turned to the start position it doesn’t energize the fuel
shut off solenoid. This will not allow fuel to flow to the
carburetor while the engine is cranking. To correct this,
there is a new key switch (725-04228) and a harness
adapter (725-04229). This is available in kit 759-04058
(Service Kit W-127)
-A new wiring harness 759-04170A should be on all
models with serial numbers above 1F224G20001.
These models will NOT need the harness adapter
(759-04058) and will already have the proper key
switch.
-To check for the proper key switch perform the follow-
ing test.
NOTE:
A multimeter or continuity tester will be
need for this section.
Turn key to OFF position and check for continuity you
should have continuity between G and M only.
Turn key to the RUN you should have continuity
between L and B.
Turn and hold key in the Start position you should have
continuity between L, B, and S.
18.7. -If this is the case then you have the most cur-
rent switch. The old key switch is usually identi-
cal to the new switch. The difference being that
the old switch when turned to START would
have continuity between B and S only.
RELAYS
18.8. There are three RELAYS in the electrical system
of the RZT. They are located under the right side
console toward the rear. See Figure 18.8.
-The relays are assessable from under the rear of the
console
-To replace a relay, the console does not need to be
removed.
-When testing by feel a click should be felt when acti-
vated.
-Starting from the left they should be in the order of
SEAT, PTO, and, BRAKE
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