Cub cadet commercial z-wing – Cub Cadet Z-Wing User Manual
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Cub Cadet Commercial Z-Wing
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28.5. The PTO switch has three sets of contacts:
A, B, & C. See Figure 28.5.
•
For each set of contacts, there are three male
spade terminals:
Common: (COM)
Normally Open: (N.O.)
Normally Closed: (N.C.)
•
When the PTO switch is pushed-in (turned-off),
each COM spade is internally connected to the
N.C. spade (A, B, or C) that corresponds to it.
•
When the PTO switch is pulled-out (turned-on),
each COM spade is internally connected to the
N.O. spade (A, B, or C) that corresponds to it.
28.6. PTO relay: The PTO relay can be found on the
main harness conduit, near the left front corner
of the engine. See Figure 28.6.
Figure 28.5
NC
NO
COM
A B C
Figure 28.6
Engine oil
dipstick
PTO Relay
28.7. The PTO relay works as follows:
•
When power (blue wire, spade #88) and ground
(green wires, spade #85) are present, the wind-
ings in the relay are energized.
•
When the relay is energized, battery power (red
wires, spade #87) is connected to the PTO
clutch (via red wire w/black trace, spade #30).
28.8. PTO clutch: The PTO clutch is an Ogura model
JD08 with brake (BBC). See Figure 28.8.
•
Typical resistance in the clutch windings is 2.9
Ω.
A much higher reading indicates open windings.
•
A new clutch should be burnished in accordance
with the Operators Manual.
•
Air gap is adjustable. It should be .020”-.035”
(.51mm-.90mm), checked at 100-hr. intervals.
Figure 28.7
#87
#88
#87A
#85
#30
winding +
Winding -
Battery power
To PTO
clutch
Figure 28.8
PTO clutch