504G3 SERIES TRACTOR OPERATION MANUAL
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5、Functions of the switches in cab：
Fig 4-8
1. Windshield Wiper Switch
2.Heater Switch
(1) Windshield Wiper Switch
This switch controls the windshield wiper. See figure at right,
“0”position means turn off the switch, and “1”position means
turn on.
(2)Heater Switch
This switch controls the heater for the CAB/
The heater heats the CAB with hot water from engine radiator.
See figure at right, put the switch on “1”position to engage the
heater, the warm wind will be blown out form the air outlet in CAB.
And“0” position to turn off the heater.
(3) Use and adjustment of system for heating
a.Firstly check the hose fixed on the engine, and make
sure it is reliable.and check the hose clamps，make
sure it is fixed and reliable.See figure at right.
b.Starting the engine and keep the idle speed state 5 minutes,then press down the
heater switch. The warm wind will be blown out
form the air outlet in CAB.
c.There are six circular outlets in CAB,and each
outlet can be opened or closed. See figure at right.
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