Converting spring accumulator parking brake

SM42.20-L-0006A

Converting spring accumulator parking brake

16.2.12

Sector

Op. no.

Operation text

N

023717

RETROFIT 2 SWITCH SOLUTION FOR COMPRESSED AIR DRIER CODE B65 41 work units/3.4 h

 System must not be under pressure

1

Retrofit auxiliary components on compressor

SM42.20-L-0006-01A

 Danger!

Risk of explosion caused by escaping oxyhydrogen gas. Risk of injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries caused by short circuit. Risk of poisoning caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices

No fire, sparks, open flames or smoking.

Wear acid-resistant gloves and clothing and safety glasses with side guards.

Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground.

Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.

AS54.10-Z-0001-01A

2

Remove frame wiring harness

SM42.20-L-0006-02A

3

Install frame wiring harness

SM42.20-L-0006-03A

4

Prepare bulkhead wiring harness

SM42.20-L-0006-05A

5

Remove wiring harness for spring brake

SM42.20-L-0006-06A

6

Install wiring harness for spring brake

 Use circuit diagram

SM42.20-L-0006-07A

7

Check whether compressed air drier (single-chamber system, code B66) is fitted

 If compressed air drier (single-chamber system, code B66) is not fitted, perform stages 8, 9, and 10, then continue with stage 13

 If compressed air drier (single-chamber system, code B66) is fitted, perform stages 11 and 12, then continue with stage 13

8

Retrofit auxiliary components on compressor

SM42.20-L-0006-01B

9

Install frame wiring harness

 Frame wiring harness (A 669 540 54 36)

SM42.20-L-0006-03B

10

Install bulkhead wiring harness

 Bulkhead wiring harness (A 670 540 74 36

SM42.20-L-0006-08A

11

Retrofit auxiliary components on compressor

SM42.20-L-0006-01C

12

Install frame wiring harness

SM42.20-L-0006-03C

13

Check compressed air system

Up to VIN No. 070980

SM42.20-L-0007A

As of VIN-No. 070981

SM42.20-L-0007B

14

Repair system if not OK

15

Document the operations performed in the FDOK

 Screen 1517

Part no.

Designation

Quantity

A 670 553 00 16

Kit 1 - Retrofitting 2-switch 12 V and 24 V, left-hand steering

1

 Components marked with X in the following are included in this component kit

A 669 540 87 36

X Bulkhead wiring harness (left-hand steering) or 

1

A 669 540 88 36

Bulkhead wiring harness (right-hand steering)

A 669 540 14 27

X Frame wiring harness (all wheel bases, loop if necessary)

1

A 005 545 10 14

X Switch (10.5 bar) B75

1

A 005 545 11 14

X Switch (12 bar) B74

1

A 004 545 04 05

X Relay (12 V) or

2

A 003 545 96 05

X Relay (24 V)

2

N 072 581 000 304

X Fuse 10 A

1

A 006 545 44 26

X Sockets

2

A 000 990 44 68

X Adapter

1

A 000 429 02 27

X Thrust ring

3

A 000 987 04 46

X O-ring

3

N 007 603 012 111

X Copper sealing ring

3

A 670 553 02 16

Kit 3 - Retrofitting B65 12 V

A 670 553 03 16

Kit 4 - Retrofitting B65 24 V

 Components marked with X1 in the following are included in component kit 3

Components marked with X2 in the following are included in component kit 4

A 001 431 98 15

X1 Compressed air drier, heated (12 V) or 

1

A 001 431 97 15

X2 Compressed air drier, heated (24 V)

1

A 668 420 02 71

X1/2 Safety valve assy. or 

1

A 668 420 03 71

Safety valve assy. (only for wheel base 4800 and transmission G60 or automatics) and 

1

A 668 427 19 41

Bracket (only for wheel base 4800 and transmission G60 or automatics)

1

A 020 545 71 32

X1 Time relay (12 V) or 

1

A 020 545 72 32

X2 Time relay (24 V)

1

N 007 981 004 325

X1/2 Sheet metal screw for time relay bracket

1

A 670 540 74 36

X1/2 Bulkhead wiring harness (for time relay)

1

A 669 540 54 36

X1/2 Frame wiring harness (for all wheel bases)

1

N 304 017 008 030

X1/2 Hex bolts ISO M8x50

2

A 668 427 20 41

X1/2 Bracket for safety valve

1

N 000 000 000 932

X1/2 Clamp for safety valve

1

N 914 146 006 102

X1/2 Hex bolt M6x16

1

N 913 023 006 001

X1/2 Nut M6x8

1

N 000 908 022 011

X1/2 Closure plug M22x1.5

1

N 007 603 022 403

X1/2 Sealing ring (for opening of old safety valve)

1

N 007 603 012 405

X1/2 Sealing rings

4

A 668 545 47 45

X1/2 Pipe (7.5 m, between drier + distributor unit)

 if necessary, make one yourself from: 1 plug A 000 990 68 78, 1 right-angle plug A 002 990 28 71,

1 pipe bend A 655 990 06 71, plastic wire 12x1.5 m - 7.5 m long A 000 987 28 27

1

A 000 997 08 34

X1/2 Union bolt (small)

1

A 000 997 09 34

X1/2 Union bolt (large)

1

A 000 994 00 47

X1/2 Circlip (small)

1

A 000 994 01 47

X1/2 Circlip (large)

1

A 000 994 12 48

X1/2 Retaining clamp (small)

1

A 000 994 14 48

X1/2 Retaining clamp (large)

1

A 005 997 89 72

X1/2 Connector

1

A 006 997 30 90

X1/2 Tie strap

10

A 001 997 84 90

X1/2 Tie strap

20