Cutting Deck Raise/Lower Switches - Toro Groundsmaster 5900 Series Service Manual

Cutting Deck Raise/Lower Switches

Testing
Electrical System: Component Testing
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1. Operator control console
2. Left deck raise/lower switch
The three (3) cutting deck raise/lower switches are located on the console arm
(Figure 212). When the front of a raise/lower switch is depressed and held, the
controlled deck (left, front or right) will lower. Once lowered, when the front of
the raise/lower switch is depressed again, the controlled deck will float. When
the rear of a lift switch is depressed and held, the controlled deck will raise. The
deck will remain in position when the switch is released.
The slave controller monitors the position of the raise/ lower switches (raise,
lower or float). Using inputs from the raise/lower switches and other switches in
the interlock system, the slave controller energizes the hydraulic solenoid valves
in the steering/lift control hydraulic manifold as necessary.
Note: The decks do not lower while the machine is in the HIGH speed range,
and the decks do not raise or lower if the operator is out of the seat while the
engine is running. The deck raising function is limited at engine speeds below
2,000 rpm. The cutting decks will raise one at a time below 2,000 engine rpm.
The raise/lower switches and their circuit wiring can be tested as TEC inputs
using the InfoCenter Display (see
determines that a switch and its circuit wiring are not functioning correctly,
proceed with the following test procedure:
1. Park machine on a level surface, lower cutting decks if possible 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 switches (see
Arm (page 7–35)).
4. Disconnect machine wire harness connector from the switch being tested.
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2
Figure 212
3. Front deck raise/lower switch
4. Right deck raise/lower switch
InfoCenter Display (page
Figure 213
Back of Switch
Page 6–72
1
3
4
6–9)). If testing
Console
Groundsmaster ® 5900 & 5910
16227SL Rev B