Pto Switch - Toro Groundsmaster 5900 Series Service Manual

PTO Switch

Testing
Electrical System: Component Testing
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1. Operator control console
The PTO switch is located on the console arm
pulled up to engage the cutting decks.
The slave controller monitors the position of the PTO switch (engage or
disengage). Using inputs from the PTO switch and other switches in the interlock
system, the slave controller energizes the hydraulic solenoid valves (PRV)
located in the cutting deck hydraulic manifolds drive the cutting deck motors.
During machine operation, if the PTO shuts down and the InfoCenter
indicates excessive engine coolant temperature, avoid shutting off
the engine. Under this condition, the operator should disengage the
PTO, slowly drive to a safe flat area, lower the engine speed to the
SLOW position and engage the parking brake. The engine should
be allowed to idle for several minutes while it cools to a safe level.
Then, the cooling system should be checked before returning the
machine to service.
The PTO switch and its circuit wiring can be tested as a TEC input using the
InfoCenter Display (see
that the switch and circuit wiring are not functioning correctly, proceed with the
following test procedure:
1. Park machine on a level surface, lower cutting decks and stop engine.
Remove key from key switch.
2. Turn battery−disconnect switch to the OFF position.
3. Disassemble the console arm to gain access to the switch (see
Arm (page 7–35)).
4. Disconnect machine wire harness connector from the switch being tested.
Figure 210
2. PTO switch
IMPORTANT
InfoCenter Display (page
Page 6–70
1
2
(Figure 210). The PTO switch is
6–9)). If testing determines
Console
Groundsmaster
16227SL Rev B
® 5900 & 5910