Refrigerant compressor, remove/install - AR83.55-P-5310NKE

ENGINE 780 in MODEL 242 

MODIFICATION NOTES

20.3.14	Nut, holder refrigerant compressor to decoupling		BA83.55-P-1003-01CA
24.6.14	Screw, refrigerant compressor to bracket		BA83.55-P-1001-01CA
25.6.14	Screw, frame charger to frame drive unit		BA08.20-P-1001-01F
10.12.14	Screw, frame charger to frame drive unit		BA08.20-P-1001-01F
19.12.14	Screw, frame charger to frame drive unit		BA08.20-P-1001-01F

Fig 1: Identifying Refrigerant Compressor Remove/Install Components (1 Of 6)

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Fig 2: Identifying Refrigerant Compressor Remove/Install Components (2 Of 6)

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Fig 3: Identifying Refrigerant Compressor Remove/Install Components (3 Of 6)

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Fig 4: Identifying Refrigerant Compressor Remove/Install Components (4 Of 6)

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Fig 5: Identifying Refrigerant Compressor Remove/Install Components (5 Of 6)

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Fig 6: Identifying Refrigerant Compressor Remove/Install Components (6 Of 6)

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	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not  carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
	Risk of explosion  caused by welding or soldering work on closed air conditioning system. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with liquid refrigerant.	Do not perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.	AS83.00-Z-0001-01A
	Evaluation of high-voltage components		AH54.00-P-6500-01SXH
	Note on high-voltage on-board electrical system		AH54.00-P-0010-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-P-0005-01A
	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
	Notes on handling refrigerant R134a		AH83.30-N-0003-01A
	Remove/install
1	Perform disable for the high-voltage on-board electrical system		AR54.10-P-1150NKE
2	Drain air conditioning system, then disconnect air conditioning service unit	ENGINE 780 in MODEL 242 without CODE 2U8 (Refrigerant R-1234yf)	AR83.30-P-1760NKB
3	Remove charge control unit (N83/10)		AR54.10-P-5106NKE
4	Remove high-voltage battery circuit heat exchanger (1)		AR20.00-P-0210NKE
		Place high-voltage battery circuit heat exchanger (1) with attached coolant lines and refrigerant lines to one side and fix in place.
5	Unclip electrical lines (2) from carrier (3)
6	Detach coolant line (4) from carrier (3)	Replace cable tie.
7	Detach clamp (5) from carrier (3)
8	Detach vacuum line (6) from carrier (3)
9	Unclip electrical wiring harness (7) from carrier (3) and expose
10	Remove bracket (10) and place to one side	For this step, unscrew bolts (9).
11	Unclip positive line (12) from carrier (3) and completely expose	To do this, remove screw/bolt (13).
12	Remove coolant line (14) from carrier (3) and expose	To this end, unclip retaining clips (16) and remove clamp (15).
13	Unscrew nuts (17)
14	Detach retaining clip (18)
15	Remove screw/bolts (19)
16	Remove screws/bolts (20, 21)	Bolt, charger frame to drive unit frame	*BA08.20-P-1001-01F
17	Remove retaining clip (8)	To this end, compress the retaining clip (8) and press downwards.
18	Carefully remove carrier (3)	Carefully lift carrier (3) and check whether it is completely exposed. Otherwise damage may occur. Aid of helper required.
19	Remove screw/bolt (40) and remove low-pressure line (41) at electrical refrigerant compressor (A9/5)	Seal opening of low-pressure line (41) using suitable stop plug. Replace sealing ring of low-pressure line (41).
20	Remove screw/bolt (42) and remove high-pressure line (43) at electrical refrigerant compressor	Seal opening of high pressure line (43) with a suitable stop plug. Replace sealing ring of high pressure line (43).
21	Disconnect electrical connector (44)	Seal detached electrical connector (44) with protective covers.
		Set of protective covers	Fig 7
22	Disconnect electrical connector (45)
23	Remove engine compartment paneling at rear	Remove/install bottom engine compartment paneling	AR61.20-P-1105NKB
24	Remove nut (48) and detach ground line (49)	Nut (48) and ground line (49) are accessible from below.
25	Unscrew nuts (46)	Nut, refrigerant compressor bracket to decoupling element	*BA83.55-P-1003-01CA
26	Remove electrical refrigerant compressor with bracket (47) from the engine compartment
27	Remove screws/bolts and separate electrical refrigerant compressor from bracket (47)	When replacing the refrigerant compressor.
		Bolt, ground line to A/C compressor	*BA83.55-P-1004-01CA
		Bolt, refrigerant compressor to bracket	*BA83.55-P-1001-01CA
28	Install in the reverse order

CONTROL UNITS

Number	Designation			ENGINE 780 in MODEL 242
BA08.20-P-1001-01F	Bolt, charger frame to drive unit frame	Stage 1	Nm	16
		Stage 2	∠°	45

REFRIGERANT COMPRESSOR

Number	Designation		ENGINE 780 in MODEL 242
BA83.55-P-1001-01CA	Bolt, refrigerant compressor to bracket	Nm	20

REFRIGERANT COMPRESSOR

Number	Designation		ENGINE 780 in MODEL 242
BA83.55-P-1003-01CA	Nut, refrigerant compressor bracket to decoupling element	Nm	14

REFRIGERANT COMPRESSOR

Number	Designation		ENGINE 780 in MODEL 242
BA83.55-P-1004-01CA	Bolt, ground line to A/C compressor	Nm	14

Fig 7: Identifying Set Of Protective Covers (001 589 01 91 00)

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