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3.10 WARM WATER VALVE
The engine coolant absorbs engine heat and
flows through the evaporator of air conditioning
system, and the evaporator then disperses the
heat, that’s how the air conditioning system
perform the heating function. Two manual warm
water valves are mounted to the water inlet and
outlet of evaporator, respectivel
y.
When the air conditioning system is in operation, the two warm water valves should
remain open (counterclockwise turn their controls). To repair the air conditioning system,
close the two valves first (clockwise turn their controls). Failure to do so may result in
engine coolant loss. To renew engine coolant, open the warm water valves so as to also
renew the coolant of evaporator, as well as ensure the normal level of engine coolant.
Note: when A/C is equipped, two water valves have the switching function. When no
A/C is equipped, the water valve of hot water pipe has the switching function and
cold water pipe has no switching function.
If the ambient temperature falls below 0
℃
, the engine is not working, and the
engine coolant contains no anti-freezer, then empty the engine water tank and open
the two warm water valves, to drain the coolant in the evaporator. Otherwise the
radiator pipe may break due to extra-low temperature.
3.11 SEAT ADJUSTMENT
In light of the operator needs and work conditions, the operator seat is designed to be
adjustable in the following items: hardness (rigidity), front-rear direction, height direction
and backrest angle.
Warm water
valve
Warning
