Tadano TR-800XXL4, Service Manual

Page: 211 / 402

28 W701-0220E
K - 2 K - 2
Air Conditioner
10.3 How to check air conditioner
Flow
No.
Procedure Safety point
Jigs
and
tools
1 Illumination lamp check (for control panel)
1) The lamp lights with the working lamp switch ON. (Two lamps
on upper and lower of center in the panel.)
2) The lamp turns off with the working lamp switch OFF.
Lights both 2 lamps.
2 Cooler temperature control switch. (Check with blower "HI".)
1) The cooler operates by setting to "COOL". (With maximum
cooling.)
(The cooler will be hard to operate if the ambient temperature is
low. The checking becomes easy when raising the cabin
temperature to about 25°C.)
2) The cooler stops by setting to "OFF".
Must be a cold blow
Must be a natural blow.
3 Heater temperature control switch (Check with blower "HI" and
engine speed maximum.)
1) Warm blow must come with maximum.
2) The heater stops by setting to "OFF".
Must be a warm blow
Must be a natural blow.
4
1) The blower stops by setting to "OFF".
2) LO: Low, ME: Medium, and HI: High
There must be a change in
three levels
5 Mode selector switch
1) Left position: Blows down from the duct.
2) Right position: Blows down from the windshield.
6 Electric fan for condenser
1) Must synchronize with the compressor.
7
Cooler performance check
Refer to the graphic chart in the instruction manual which is for
charging an air conditioner gas.
- Blower switch is HI.
- Temperature control is maximum COOL.
- Engine speed is MAX.
- All doors are opened. (All closes in winter.)
- Tmperature of air inhalation vent must be 25-35 °C.
(The standard of temperatures fluctuate is about 10-17°C.)
* Raise the cabin temperature with the heater as much as
possible in the winter.
(Check with your hand that the cold blow is
output.---Compressor must be operating.)
Check with your hand in the
winter.
Avoid performing in the low
ambient temperature period
as much as possible.