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Home >> Mercedes Benz >> 2019 >> Sprinter 3500XD 2D Cab Chassis >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control >> Testing & Repair >> Check Air Conditioning System For Leakage - Ar83.30-D-1761TS

Check Air Conditioning System For Leakage - Ar83.30-D-1761TS

Model 907, 910 

MODIFICATION NOTES

18.07.2019 Basic data reference BE08.50-N-1001-02TE, added Operation step 2
  Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. Model 910 with engine 780.703  
  Risk of explosion  when using a forming gas with incorrect mixing ratio. Risk of suffocation due to inhalation of forming gas. Risk of injury  due to bursting of high-pressure hoses. Wear safety glasses and protective gloves. No smoking or open flames. Work in well-ventilated rooms only. AS83.00-Z-0001-02A 
  General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system   AH00.00-Z-0300-01A
  Protect air conditioning circuit and components from moisture when carrying out repair work   AH83.30-N-0005-01A 
  Procedure for a damaged or leaky air conditioning system   AH83.30-N-0004-01A 
INSPECT Check     
1 Discharge and evacuate air conditioning system.   AR83.30-D-1760TS 
2 Fill air conditioning with forming gas and check pressure drop.    
REFER TO SPECIAL TOOLS 000 588 19 21 00 Leak tester NOTES
Make sure ambient temperatures remain constant.
Otherwise, temperature changes during the pressure test (e.g. caused by a change in the weather or cooling down of the engine compartment over night) may cause pressure fluctuations.
IMPORTANT Do not fill air conditioning system with forming gas unless engine is cold.
IMPORTANT When connecting and when operating the leak tester, the complete work procedure must be conducted in accordance with the manufacturer's operator's manual.
WS83.00-P-0035B 
    Model 907
Pressure drop in refrigerant circuit filled with test gas If a pressure drop was detected, ↓ locate leakage in air conditioning system using gas detection unit.
*BE83.30-N-1001-04TS 
REFER TO SPECIAL TOOLS   000 588 03 21 00 Gas detector
IMPORTANT Observe operator's manual for gas detection unit.
If a leak is present,
↓ replace affected air conditioning system component parts.
WS47.00-P-0019B
3 Vent used forming gas from refrigerant circuit using leak tester. IMPORTANT Observe operator's manual for the leak tester.  
4 Fill air conditioning.   AR83.30-D-1760TS 
AIR CONDITIONING

Number Designation Model 907
BE83.30-N-1001-04TS Pressure drop in refrigerant circuit filled with test gas Test pressure bar 15
Test period h 4
Permissible ambient temperature fluctuation °C ±2
Pressure drop bar 0