SM42.20-L-0006C | Converting spring accumulator parking brake | 4.2.99 |
MODEL 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, standard texts and flat rates
Division | Op. no. | Operation text |
N | 023719 | CONVERTING SINGLE-CHAMBER AIR DRYER FROM CODE B66 TO B65 16 WU / 1.3 hrs. |
L42.60-0016-09
A Electric compressor
B Compressed air dryer, heated
C1 Compressed air reservoir
C2 Compressed air reservoir
D1 Pressure limiting valve
D2 Safety valve
D3 Overflow valve
D4 Relay valve
D5 Handbrake valve with breather
F Distributor with non-return valve
G1 Spring accumulator
G2 Spring accumulator
H1 Test connector
H2 Test connector
H3 Test connector
I Pipe 12 x 1.5 7.8 m
E1 Pressure switch B12
(yellow indicator lamp)
E2 Pressure switch B74
(color identification blue)
E3 Pressure switch B14
(color identification yellow)
E4 Pressure switch B75
(without color identification)
E5 Pressure switch B5
E6 Pressure switch B13
(color identification red)
L42.60-0017-09
Spring accumulator when vacuum occurs
A Electric compressor
B Heater compressed air dryer R38
D7 Drain valve R37
E2 Pressure switch, compressor off
(12 bar) B74
E3 Pressure switch II (8.4 bar) B14
E4 Pressure switch, compressor on
(10.5 bar) B75
E6 Pressure switch (5.5 bar) B13
L1 Compressor connector X35
M1 J1 (display brake pipes)
M2 J32 (terminal 15 switched)
M3 J28 (display D+)
M4 A11.2/2
M5 K18, terminal 87a
M6 K47, terminal 86
J1 Spring accumulator control relay K42
J2 Hysteresis switch relay K27
J3 Compressor relay, spring
accumulator K18
J4 Compressed air dryer relay K48
J5 4 sec. time relay K47
K1 Compressor spring accumulator fuse
20 A - 24 V
30 A - 12 V F39
K2 Compressed air dryer fuse
10 A heater F49
System must be depressurized | |||
1 | Preparing dash support wiring harness | Only part of the wiring harness is used, since part of it has already been installed in this vehicle. | |
2 | Remove spring brake wiring harness | ||
3 | Installing spring brake wiring harness | Use wiring diagram | |
4 | Retrofitting additional parts to compressor | ||
5 | Installing frame wiring harness | Frame wiring harness (A 669 540 54 36) | |
6 | Installing dash support wiring harness | Dash support wiring harness | |
7 | Check compressed air system | Up to vehicle identification no. 070980 | |
As of vehicle identification no. 070981 | |||
8.1 | Repair system if not OK | ||
9 | Document performance of work in FDOK | Mask 1517 |
Parts ordering notes
Part no. | Designation | Quantity |
A 670 553 01 16 | Part kit 2 adaptation for B65 12 V and 24 V, left-hand drive | 1 |
This parts kit contains the parts marked with X below | ||
A 669 540 87 36 | X Dash support wiring harness (left-hand drive) or | 1 |
A 669 540 88 36 | Dash support wiring harness (right-hand drive) | 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 10 A fuse | 1 |
A 670 553 02 16 | Kit 3 - retrofitting B65 12 V | |
A 670 553 03 16 | Kit 4 - retrofitting B65 24 V | |
Parts kit 3 contains the parts marked with X1 below Parts kit 4 contains the parts marked with X2 below | ||
A 001 431 98 15 | X1 Compressed air dryer, heated (12V) or | 1 |
A 001 431 97 15 | X2 Compressed air dryer, heated (24V) | 1 |
A 668 420 02 71 | X1/2 Safety valve assembly or | 1 |
A 668 420 03 71 | Safety valve assembly (only with wheelbase 4800 and transmission G60 and automatic) and | 1 |
A 668 427 19 41 | Bracket (only with wheelbase 4800 and transmission G60 and automatic) | 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 Dash support wiring harness (for time relay) | 1 |
A 669 540 54 36 | X1/2 Frame wiring harness (for all wheelbases) | 1 |
N 304 017 008 030 | X1/2 ISO hexagon bolts M8x50 | 2 |
A 668 427 20 41 | X1/2 Safety valve bracket | 1 |
N 000 000 000 932 | X1/2 Safety valve clamp | 1 |
N 914 146 006 102 | X1/2 Hexagon bolt M6x16 | 1 |
N 913 023 006 001 | X1/2 Nut M6x8 | 1 |
N 000 908 022 011 | X1/2 Sealing plug M22x1.5 | 1 |
N 007 603 022 403 | X1/2 Sealing ring (for old safety valve opening) | 1 |
N 007 603 012 405 | X1/2 Sealing rings | 4 |
A 668 545 47 45 | X1/2 Pipeline (7.5 m, between dryer and distributor) Self made if necessary from: 1 x Connector A 000 990 68 78, 1 x Right-angle plug 1 x Pipe bend A 655 990 06 71, Plastic pipe 12 x 1.5 m length 7.5 m A 000 987 28 27 | 1 |
A 000 997 08 34 | X1/2 Retaining bolt (small) | 1 |
A 000 997 09 34 | X1/2 Retaining screw (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 Connecting piece | 1 |
A 006 997 30 90 | X1/2 Cable strap | 10 |
A 001 997 84 90 | X1/2 Cable strap | 20 |