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Journal for dave112Journal for dave112
Mar
18
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ClAAS Lexion 480 Checking / Topping up the Refrigerant Oil Level
ClAAS Lexion 480 Checking / topping up the refrigerant oil level at the air conditioner compressor.


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NOTE: The oil level at the compressor must be checked when a new air conditioner compressor or a newly sealed air conditioner compressor has been built in.

Proceudres:
1. Start the diesel engine and leave running in slow idle speed.
2. Switch on air conditioner compressor and let it run for 10 minutes. Stop the diesel engine.
3. Extract refrigerant from connections (D, discharge side) and (S, suction side) of the air conditioning compressor. Proceed very slowly in order to prevent refrigerant oil from being extracted as well. (Observe the instructions given by the unit manufacturer.)
4. Unscrew dust cap (A) and screw out oil filler plug (B).
5. Remove air conditioner compressor if required.
6. Turn air conditioner compressor to a horizontal position.
7. Rotate the counterweight (C) to the position shown and introduce the oil level dipstick, spare part no. 181 788.0 (or self-sourced). Here the 30° inclination of the oil level dipstick must make contact with the compressor housing.
X = 105 mm
W = 30°
Y = 3 mm (clearance between notches)
8. The oil level must be shown up to notch 5 – 7 (from the bottom) on the oil level dipstick. Top up refrigerant oil (SANDEN SP 20) if necessary.
9. Screw in oil filler plug (B) with a new sealing ring and tighten with a tightening torque of 20 Nm. Put dust cap (A) in place and screw in hex. bolts with liquid locking compound, e.g. DELO-ML 5349.
10. Air conditioning system – Topping up refrigerant,

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