Claas LEXION 480, Repair Manual

Page: 46 / 1018

2.1.4
RHB LEXION 480 - 188 678.1
Air conditioner
Checking / topping up the refrigerant oil level
at the air conditioner compressor
(Air conditioner compressor Sanden Sd 7h 15)
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.
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
,
see page 2.1.3
(Fig. 3, 4, 5)
3
4
5