ELECTRICAL
7-11
Toro TITAN 2014 Service Manual
7
Testing
If the electric PTO clutch is not engaging or is sus-
pect ed as a cause of electrical problems, use the
troubleshooting steps. These procedures will help you
determine if the clutch has failed or is the cause of the
elec trical problem.
Coil Resistance Measurement
1. Disengage the PTO switch, turn ignition off and
remove key.
2. Disconnect clutch wire connector.
3. Set the multimeter to check resistance (ohms).
4. Connect the meter lead wires to the terminals in the
clutch connector (Fig. 129).
5. See the PTO Clutch Electrical Specifications chart.
PTO Clutch Electrical Specifications
Ohms
Specification
Amp Draw
Specification
Continuity
to Ground
3.05 + 10%
3.93 + 10%
OPEN
Electric PTO Clutch
Purpose
The clutch electrically controls the engagement and
disengagement of the PTO pulley.
Location
The electric clutch is located on the PTO end of the
engine crankshaft.
How It works
The PTO clutch is composed of three major compon-
ents; the field, clutch plate, and friction plate. The clutch
plate always turns with the engine. The field is a coil of
wire on an iron core, which becomes an electro magnet
when power is applied.
The friction plate is the only piece that can slide up and
down on the crankshaft axis. It is normally spring-loaded
so that it is not in contact with the clutch plate and is
pressed against the brake material opposite the clutch.
When power is applied, the friction plate is drawn toward
the clutch plate and the two rotate as one.
Fig. 129
coil resist msmt_v2
Summary of Contents for titan mx
Page 1: ...2014 TITAN ZX MX Service Manual Residential Products ...
Page 2: ......
Page 4: ...ABOUT THIS MANUAL THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 10: ...SAFETY INFORMATION 1 2 Toro TITAN 2014 Service Manual 1 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 46: ...CHASSIS 3 26 Toro TITAN 2014 Service Manual 3 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 52: ...ENGINE 4 6 Toro TITAN 2014 Service Manual 4 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 84: ...MOWER DECK 6 18 Toro TITAN 2014 Service Manual 6 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 97: ...ELECTRICAL 7 13 Toro TITAN 2014 Service Manual 7 PTO Circuit Schematic Fig 131 PICT 2015 ...
Page 103: ...ELECTRICAL 7 19 Toro TITAN 2014 Service Manual 7 Fig 143 PICT 3020 Wire Harness View 1 of 3 ...
Page 104: ...ELECTRICAL 7 20 Toro TITAN 2014 Service Manual 7 Wire Harness View 2 of 3 Fig 144 PICT 3021 ...
Page 105: ...ELECTRICAL 7 21 Toro TITAN 2014 Service Manual 7 Fig 145 PICT 3022 Wire Harness View 3 of 3 ...
Page 106: ...ELECTRICAL 7 22 Toro TITAN 2014 Service Manual 7 THIS PAGE INTENTIONALLY LEFT BLANK ...
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Page 108: ...2014 TITAN ZX MX Service Manual Form Number 492 9339 ...