AR42.60-B-0120B | Disassembling and assembling four-circuit protection valve | 12.02.16 |
Vehicle 382 with Cumbustion engine 906.918, 906.988, 906.998, 906.983
Vehicle 693 with Cumbustion engine 904.925
B42.60-0094-09
1 Body
2 Spring seat
3 Tapered spring
4 Rod
5 Sealing ring
6 Gasket
7 Spring seat
8 Spring
9 Spring seat
10 Cap
11 Phillips head screw
12 Adjustment screw
13 Sealing ring
14 Spacer
15 Sealing ring
16 Sealing ring
17 Valve
18 Nameplate
19 Spring
20 Valve
21 Sealing ring
22 Guide
23 Spring
24 Sealing ring
25 Piston
26 Sealing ring
27 Insert
28 Sealing ring
29 Plug
30 Sealing ring
31 Valve
32 Retainer ring
33 Washers
34 Gasket
35 Piston
36 Spring seat
37 Spring
38 Spring seat
| Disassemble | ||
1 | Unscrew the adjustment screws (12), completely relieving the spring tension | ||
2 | Unscrew and remove the Phillips screws (11) from the cover (10) | ||
3 | Remove the cover (10), the spring seat (9), the spring (8), the spring seat (7) and the packing (6) | ||
4 | Remove the nameplate (18) and the valve from the cover (17) | ||
5 | Remove the spacer (14) and from it the sealing rings (15) and (16) | ||
6 | Remove the plug (29) and its sealing ring (28) | ||
7 | Remove the insert (27) and from it the sealing rings (28) | Use pliers. | |
8 | Remove the subassembly from inside the body (1) | ||
9 | Remove the springs (19) and the valves (20) manually pulling the inserts (22) | ||
10 | Remove the guides (22) and the spring (23) from the piston (25) | ||
11 | Remove the sealing rings (21) from the guides (22) and the sealing rings (24) from the piston (25) | ||
12 | Unscrew the adjustment screws (12), completely relieving the spring tension | ||
13 | Unscrew and remove the Phillips screws (11) from the cover (10) | ||
14 | Remove the cover (10), the spring seat (9), the spring (8), the spring seat (7) and the packing (6) | ||
15 | Remove the spring seat (38), the spring (37), the spring seat (36) and the piston (35) | ||
16 | Remove the washers(33), the packing (34) from the piston (35) | ||
17 | Remove the retaining ring (32) with appropriate needle nose pliers | ||
18 | Remove the valve (31) and the sealing ring (30) | ||
19 | Loosen and remove the spring seat (2), the spring (3) and the rod (4), remove from it, the sealing ring (5) | Use a 10 mm Allen key. | |
| CLEAN | ||
20 | Clean the components and check the parts for wear | Use an adequate product to clean the rubber and plastic components, otherwise they can be damaged. | |
The repair kit components must be replaced every time the valve is disassembled. | |||
| Assembling | ||
21 | Install the packing (6) with their lips towards the depth of the body (1) | ||
22 | Install the spring seat (7) with the hole down fitting in the packing (6), the spring (8) and the spring seat (9) | ||
23 | Install the sealing rings (13) and (15) in the bottom and top channels of the spacer (14) | ||
24 | Install the spacer (14) inside the body (1) | ||
25 | Install the valve (17) and the nameplate (18) on the side of the cover (10), and the sealing ring (16) in the bottom part of the cover (10) | ||
26 | Install the cover (10) over the components and tighten with the screws (11) | Tighten the screws alternately and equally for a perfect seating. | |
| |||
27 | Insert the adjusting screws (12) and tighten them slightly | ||
28 | Install the spring (19) in the valve (20) | ||
29 | Install the sealing rings (24) in the piston (25) and the sealing rings (26) in the insert (27) | ||
30 | Install the guide (22), the spring (23), the piston (25) and the guide (22), the valve (20) and the spring (19), inserting them inside the body (1) | ||
31 | Install the insert (27) over the installed subassembly and insert the plug (29) with the sealing ring (28) | | |
32 | Install the packing (6) with their lips towards the depth of the body (1) | ||
33 | Install the spring seat (7) with the hole down fitting in the packing (6), the spring (8) and the spring seat (9) | ||
34 | Install the packing (34) and fit the washer (33) in the piston (35) | ||
35 | Install the sealing ring (30) in the valve (31) | ||
36 | Insert the valve (31) in the body (1) and lock with the retaining ring (32) | ||
37 | Install the piston (35) on the valve (31) | ||
38 | Install the spring seat (36), the spring (37) and the spring seat (38) over the piston (35) | ||
39 | Install the valve (17) and the nameplate (18) on the side of the cover (10), and the sealing ring (16) in the bottom part of the cover (10) | ||
40 | Install the cover (10) over the components and tighten with the screws (11) | Tighten the screws alternately and equally for a perfect seating. | |
| |||
41 | Insert the adjusting screws (12) and tighten them slightly | ||
42 | Install the sealing ring (5) in the rod (4) and fit the taper spring (3) | ||
43 | Install the subassemblies in the ports 25 and 26 of the body (1) | ||
44 | Insert the spring seats (2) in the ports 25 and 26 up to thread end | ||
| Test | ||
45 | Install the valve on the bench and carry out the test and respective adjustments | Wabco valves. | |
Compressed air brake system
Número | Denominação | chassis 368.00/05/10/11/15; 382.07/08/12/15/17/18; 384.06/07/11/14/20/22/31/33; 634.001/011/061; 693.02/10/12/14/15/17/18/19/34/38; 694.00/02/04; 695.01/02/03/04/05; 695.30; 696.08/09; 696.36 | |||
BE42.60-B-1002-01A | Protective valve | Opening pressure - Wabco/Knorr - circuits 21 and 22 | bar | 8,7 ... 9,0 | |
Opening pressure - Wabco/Knorr - circuits 23, 24, 25 and 26 | bar | 7,2 ... 7,5 | |||
Limiting valve opening pressure - Wabco - circuits 23, 24, 25 and 26 | bar | 8,1 ... 8,5 | |||
Closing pressure - Knorr - Circuits 21 and 22 | bar | 6,3 | |||
Closing pressure - Knorr - Circuits 23, 24, 25 and 26 | bar | 4,5 | |||
Static closing pressure (without losses compensation and "0" bar in the defective circuit) - Wabco/Knorr - Circuits 21 and 22 | bar | 7,0 | |||
Static closing pressure (without losses compensation and "0" bar in the defective circuit) - Wabco - Circuits 23, 24, 25 and 26) | bar | 4,5 | |||
Static closing pressure (without losses compensation and "0" bar in the defective circuit) - Knorr - Circuits 23, 24, 25 and 26 | bar | 5,5 | |||
Static closing pressure (without losses compensation and "0" bar in the defective circuit) - Knorr - Circuits 23 and 24 | bar (bigger or equal) | - | |||
Pressure limit - Wabco/Knorr - Circuits 23, 24, 25 and 26 | bar | 8,1 ... 8,5 | |||
Safety valve opening pressure - Knorr - Circuits 23, 24, 25 and 26 | bar (bigger than) | 8,2 | |||
Safety valve opening pressure - Knorr - Circuits 23, 24 | bar (bigger or equal) | - | |||
Pressure reduction (shifting pressure) - Knorr - Circuits 21 and 22 | bar | 10,4 ... 10,6 | |||
Pressure reduction (shifting pressure) - Knorr - Circuits 23 and 24 | bar | 8,4 ... 8,6 | |||
Pressure reduction (shifting range) - Knorr - Circuits 21, 22, 23 and 24 | bar (bigger or equal) | 0,5 | |||
Admissible leakage - Wabco | bar (smaller or equal to cm3/min) | 10,0 | |||
Admissible leakage - Knorr | bar | 8,0 | |||
Bench feeding circuit pressure - Wabco | bar | 15,0 | |||
Bench feeding circuit pressure - Knorr | bar | 11,8 ... 12,2 | |||
Pressure during the tightness test - Wabco | bar | 10,0 | |||
Dynamic safety pressure - Knorr - Circuits 21, 22, 23 and 24 | bar (bigger or equal) | - | |||
Brakes pneumatic system
Número | Denominação | Chassis 368.0/1; 382.05/06/07/08/15/17/18; 384.2/3; 693.0/1/2/3; 694.0; 695.0/3; 696.0/3 | |||
BA42.60-B-1002-04A | Four way protective valve | Cover Phillips bolts - Wabco | Nm | 4...6 | |
Torx type bolts of the spring housing - Knorr | Nm | 10...12 | |||
Valve body plug - Wabco | Nm | 50...70 | |||
Test takeoff - Wabco | Nm | 10...12 | |||
Central nut - Knorr | Nm | 13...17 | |||
Springs housing fastening nut - Knorr | Nm | 7...9 | |||