AP83.00-T-8352AB | Air conditioning system - function check | 24.6.03 |
MODEL 671.030 with CODE (HKC) Sütrak AC 353 air conditioning without roof heater
T83.00-0064-01
1 Positive button
2 Negative button
3 Blower control button
4 Automatic air conditioning button
5 Display
T83.00-0066-11
6 Air outlet grille
T83.30-0084-01
7 Clutch hub
Condenser fan (arrows)
T83.00-0065-01
T83.00-0067-01
8 Switch (door air curtain)
9 Blower box (door air curtain)
T83.00-0068-01
Inspect | |||
Danger! | Risk of accident as vehicle may start off by itself with the engine running. Risk of injury as working around the engine during start-up or while running may result in contusions and burns | Secure vehicle to prevent it from moving. | |
Danger! | Lethal Hazard from being drawn into rotating vehicle parts | Do not reach into rotating parts. | |
1 | Start engine | A minimum coolant temperature of | |
2 | Operate automatic air conditioning button (4) | The button on the automatic air conditioning indicator lamp (4) must light up. | |
3 | Adjust specified temperature to 18 °C by operating the minus button (2) | Observe specified temperature indication on the display (5) | |
| Check refrigerant compressor | ||
4 | Open tailgate | ||
5 | Carry out visual inspection of refrigerant compressor | - When the engine is running and the air conditioning is switched on, the clutch hub (7) must rotate. -Check electromagnetic clutch for noises, repair electromagnetic clutch if necessary: | |
| Remove/install electromagnetic clutch at A/C compressor | ||
6 | Close tailgate | ||
| Check condenser fans | ||
Danger! | Risk of death as a result of falling from vehicle roof. Risk of injury to other persons through falling objects when working in the roof area. | ||
7 | Carry out visual inspection of condenser (arrows) | The condenser fans (arrows) must rotate when the air conditioning is switched on. | |
| Check passenger compartment cooling capacity | ||
8 | Measure the air temperature flowing out of the air outlet grille (6) with sensor of the temperature measuring device | The temperature of the air which flows out after approx. 5 min. must be significantly below the outside temperature. Else, check leaktightness of air conditioning: | |
| Checking air conditioning system for leakage | ||
| |||
| Check passenger compartment radial fans | ||
9 | Operate blower control button (3) | The current blower capacity in percent appears on the display (5). | |
10 | Set highest blower capacity by operating the plus button (1) | The blower capacity of the radial fan has to increase audibly. | |
11 | Compare the air flowing out at all air outlet grilles (6) with each other | If the force of the air flow of the left vehicle side is different from the right: | |
| Open cover of evaporator unit and check radial fan for proper operation. | ||
12 | Operate switch (8) | ||
13 | Open all inward folding doors | See owner's manual | |
14 | Check whether air flows out of blower box openings (9) (arrows) | Blower boxes (9) are located above the inward folding door. | |
15 | Switch off engine |
Commercially available tools
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