SM42.20-L-0006D | Convert spring-operated parking brake | 4.2.99 |
MODELS 668.###, 670.### ## up to 081120 up to 30.11.98
except CODE (B16) 2-circuit hydraulic brake/2-circuit compressed air brake
except CODE (B19) hydraulic 2-circuit/compressed air 2-circuit heavy-duty brakes
Operation no. of operation texts or standard texts and flat rates
Sector | Op. no. | Operation text |
CV | 023720 | INSTALL RELAY FOR COMPRESSED AIR DRIER HEATING CODE B65 12 work units/1 h |
L42.60-0012-09
A Electr. compressor
B Compressed air drier, heated
C1 Compressed air reservoir
C2 Compressed air reservoir
D1 Pressure limiting valve
D2 Safety valve
D3 Overflow valve
D4 Relay valve
D5 Hand brake valve with vent
F Check valve
G1 Spring-type actuator
G2 Spring-type actuator
H1 Test connector
H2 Test connector
H3 Test connector
I1 Wire 12 x 1.5 7.6 m, 12 x1.5 7.9 m (raised)
I2 Intake pipe 16x2
E1 Pressure switch B12
(yellow indicator lamp)
E2 Pressure switch B74
(blue color coding)
E3 Pressure switch B14
(yellow color coding)
E4 Pressure switch B75
(without color coding)
E5 Pressure switch B5
E6 Pressure switch B13
(red color coding)
L42.60-0013-09
A Electr. compressor
B Compressed air drier
C1 Compressed air reservoir
C2 Compressed air reservoir
D1 Pressure limiting valve
D2 Safety valve
D3 Overflow valve
D4 Relay valve
D5 Hand brake valve with vent
H1 Test connector
H2 Test connector
H3 Test connector
I1 Wire 12 x 1.5 7.8 m
I2 Intake pipe 16x2
Switch B74 (hysteresis switch) switches the compressor on at 10.5 bar and off at 12 bar.
E1 Pressure switch B12
(yellow indicator lamp)
E2 Pressure switch B74
E3 Pressure switch B14
E4 Pressure switch B13
E5 Pressure switch B5
F Distributor unit with check valve
G1 Spring-type actuator
G2 Spring-type actuator
L42.60-0014-09
A Electr. compressor
B Compressed air drier
C1 Compressed air reservoir
C2 Compressed air reservoir
D1 Pressure limiting valve
D2 Safety valve
D3 Overflow valve
D4 Relay valve
D5 Hand brake valve with vent
F Distributor unit with check valve
G1 Spring-type actuator
G2 Spring-type actuator
H1 Test connector
H2 Test connector
H3 Test connector
I1 Wire 12 x 1.5 7.8 m
I2 Intake pipe 16x2
E1 Pressure switch B12
(yellow indicator lamp)
E2 Pressure switch B74
(blue color coding)
E3 Pressure switch B14
(yellow color coding)
E4 Pressure switch B75
(without color coding)
E5 Pressure switch B5
E6 Pressure switch B13
(red color coding)
L42.60-0017-09
Spring-type actuator under vacuum
A Electr. compressor
B Compressed air drier for heating R38
D7 Drain valve R37
E2 Compressor off pressure switch
(12 bar) B74
E3 Pressure switch II (8.4 bar) B14
E4 Pressure switch for compressor On
(10.5 bar) B75
E6 Pressure switch (5.5 bar) B13
L1 Plug connector for compressor X35
M1 J1 (Display of stop light)
M2 J32 (Term. 15 closed)
M3 J28 (Display D+)
M4 A11.2/2
M5 K18, Term. 87a
M6 K47, Term. 86
J1 Spring-type actuator indicator relay
K42
J2 Hysteresis switch relay K27
J3 Relay for compr. of spring-type actuator K18
J4 Relay for compressed air drier K48
J5 Time relay 4 sec. K47
K1 Compressor spring accumulator fuse
20 A - 24 V
30 A - 12 V F39
K2 Compressor air drier fuse
Heating 10 A F49
L42.60-0019-09
Spring-type actuator under vacuum
A Electr. compressor
D7 Drain valve R37
E2 Compressor off pressure switch
(12 bar) B74
E3 Pressure switch II (8.4 bar) B14
E4 Pressure switch for compressor On
(10.5 bar) B75
E6 Pressure switch (5.5 bar) B13
L1 Plug connector for compressor X35
M1 J1 (Display of stop light)
M2 J32 (Term. 15 closed)
M3 J28 (Display D+)
M4 A11.2/2
M5 K18, Term. 87a
M6 K47, Term. 86
J1 Spring-type actuator
indicator relay K42
J2 Hysteresis switch relay K27
J3 Relay for compr. of spring-type actuator K18
J5 Time relay 4 sec. K47
K1 Compressor spring accumulator fuse
20 A - 24 V
30 A - 12 V F39
System must not be under pressure | |||
1 | Prepare bulkhead wiring harness | Only one part of the wiring harness is used because one part is already fitted in the current vehicle. | |
2 | Remove wiring harness for spring brake | ||
3 | Install wiring harness for spring brake | Use circuit diagram | |
4 | Retrofit auxiliary components on compressor | ||
5 | Install frame wiring harness | ||
6 | Check compressed air system | Up to VIN No. 070980 | |
As of VIN-No. 070981 | |||
7.1 | Repair system if not OK | ||
8 | Document the operations performed in the FDOK | Screen 1517 |
Parts ordering notes
Part no. | Designation | Quantity |
A 670 553 01 16 | Components kit 2 Adaptation for B65 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) | 1 |
A 004 545 04 05 | X Relay (12 V) or | 1 |
A 003 545 96 05 | X Relay (24 V) | 1 |
A 006 545 44 26 | X Sockets | 2 |
N 072 581 000 304 | X Fuse 10 A | 1 |
A 670 553 04 16 | Kit 5 - Converting to heated compressed air drier code B65 12 V | 1 |
A 670 553 05 16 | Kit 6 - Converting to heated compressed air drier code B65 24 V | 1 |
Components marked with X1 in the following are included in component kit 5 Components marked with X2 in the following are included in component kit 6 | ||
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 02 71 | Safety valve assy. (only for wheel base 4800 and transmission G60 or automatics) | 1 |
N 007 603 012 405 | X1/2 Sealing rings | 4 |
A 669 540 54 36 | X1/2 Frame wiring harness (for all wheel bases) | 1 |
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 M6-8 | 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 |
A 006 997 30 90 | X1/2 Tie strap | 10 |
A 001 997 84 90 | X1/2 Tie strap | 20 |
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