Cub Cadet RZT-S Series - Manual (Page 71)

Electrical System
65
Starter solenoid
The starter solenoid is mounted to the rear frame cross
member under the seat. See Figure 7.6.
• When the proper safety conditions are met (brake
applied and PTO OFF), the orange wire with white
trace energizes the windings that magnetize an
iron core, pulling the contacts closed between the
two heavy posts, connecting battery power to the
starter motor.
NOTE: This starter solenoid grounds out through the
green wire, NOT the solenoid housing.
PTO Relay
The PTO relay is taped to the main harness next to the
battery. See Figure 7.6.
The PTO relay disengages the PTO clutch when it is
energized and latches on until the PTO switch is turned off.
The list below details the function of the PTO relay.
Figure 7.6
Fuse
PTO
Relay
Starter Solenoid
3 Green wire COM (Common)
terminal
Ground for PTO clutch (not energized) or relay latch
(energized). Hard-wired to ground
5 White/black trace Normally Open (NO) ter-
minal
Connects to COM terminal when the relay is ener-
gized. Power from PTO switch B-NO when PTO is
ON.
2 Red wire Power for windings
Hot when the key switch is in any position other than
OFF.
4 White wire Normally Closed (NC)
terminal
Connects PTO clutch to its ground path (through 30)
when the relay is not energized.
1 Yellow/black trace Ground path for
windings
Provides ground path, energizing the relay: when
seat is empty and the PTO is turned ON or when the
mower is put in Reverse and the PTO is turned ON.
Figure 7.7
2 4 1
3
5
Relay
Relay terminal
pattern