Baroness LM2700, Service Manual

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Proximity sensor (position detection switches)
A proximity sensor is one of the safety switches that constitute the interlock system. Proximity
sensors (position detection switches) are attached to the base parts of mower arms #1 and #3.
They detect the rise of the mower arms and stop the reel cutter rotation.
Also the proximity sensors attached to the base parts of mower arms #4 and #5 stop the up
motion of the mower arm cylinders and reel rotation in sync with the operation switch.
Electro-magnetic check valve
The electro-magnetic check valves operate in coordination with the proximity sensors.
When the operation switch is turned on, the electro-magnetic check vales are activated to stop the
hydraulic pressure on the cylinders.
Tank unit
The tank unit is connected to the fuel gauge. Remaining fuel volume measurement is determined
by the position of the float.
Relay comp.
The relay comp. is one of the relays that compose the interlock system.
The starter motor can be started only when the safety switch and the alternator are working
properly.
It is located at the rear inside of the right control panel.
Glow lamp timer
The glow lamp timer controls illumination of the thermo-start lamp inside the pilot lamp.
When the ignition key switch is set and held to "GLOW", the thermo-start lamp turns on for 5
seconds.
It is located at the rear inside of the right control panel.
Reel rotation valve
The reel rotation valve, opening and closing its electromagnetic valve, switches the reel cutter
rotaion to "forward," "reverse" and "stop."
2WD/4WD changeover valve (2WD/4WD solenoid)
You can activate the 2WD/4WD changeover valve to enable "2WD" or "4WD" driving by operating
the 2WD/4WD changeover switch.
It is placed on the rear pivot of the main body.
Electro-magnetic pickup (rotation sensor)
The electro-magnetic pickup detects rotation of the engine flywheel gear and converts it to a signal,
which is displayed as an rpm value on the tachometer.
The pickup is located near the engine flywheel gear.
Fan drive solenoid
The fan drive solenoid operates in coordination with the gear pump and radiator fan gear motor on
the left side of the engine.
It turns the radiator fan gear motor ON or OFF, and controls the fan not to stop suddenly.
It is located on the left side of the main body and above mower unit #3.
Fuel supply pump
The fuel supply pump sends the fuel that has passed through the fuel filter to the injection pump.
It is placed on the left side of the main body and above mower unit #3.
Level Switch
The level switch is connected to the buzzer (oil level).
The switch will be engaged and continuous buzzer alarm will sound if the oil volume in the
hydraulic tank decreases (the float descends) by two (2) liters (0.53 U.S.gals).
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LM2700
Electrical system
Page 6-4 Specifications