SM42.60-W-0004A | Retrofitting check valve in compressed air reservoir for air suspension | 4.2.09 |
MODEL 950.20# /21# ## up to 423285 with CODE (A00) Air-sprung front axle
MODEL 950.20# /21# ## up to 423285
with CODE (A00) Air-sprung front axle
with CODE (B49) Additional air reservoir
W42.60-0045-06
1 Compressed air line (connector 23)
2 Compressed air line (connector 24)
3 Compressed air line (connector 21)
4 Compressed air line (connector 22)
5 Compressed air line (connector 25)
6 Compressed air line (compressed air supply)
7 Compressed air distributor (located on left inner frame side at height of equipment carrier)
8 Compressed air line (to air reservoir rest volume)
5.01a Air reservoir (40 l) air suspension (located on right inner frame side)
7.01 Overflow valve with return flow
7.02 Overflow valve with limited backflow
8.01 Check valve
30.01 Safety valve
A Condition before conversion
B Condition after conversion
| Removing | ||
1 | Completely discharge entire compressed air system | ||
2 | Remove compressed air lines (1 to 6) | Mark all compressed air lines in relation to connectors | |
3 | Remove overflow valve with limited return flow (7.02) from compressed air distributor (7) | ||
4 | Check production date on designation plate of removed overflow valve with limited return flow (7.02) | Overflow valves as of production date 98/19 (year/week) can still be used. If the production date is older than 98/19, replace overflow valve with overflow valve as of production date 98/19. Part numbers remain unchanged | |
5 | Remove compressed air lines (1 and 8) from air reservoir (5.01a) | In some cases it is possible to connect the compressed air line (8) and the overflow valve with return flow (7.01) to another connector of the air reservoir. | |
6 | Remove overflow valve with return flow (7.01) from air reservoir (5.01a). | ||
| Installation | ||
| Connection schematic for air suspension compressed air system | ||
7 | Install removed or new overflow valve with limited return flow (7.02) to center connector of air reservoir (5.01a) | Observe flow direction! | |
8 | Transfer safety valve (30.01) | If the safety valve (30.01) is installed in the center connector or in one of the side air reservoirs, it is necessary to install it in the right connector of the air reservoir (5.01a). | |
9 | Install check valve (8.01) at left connector of air reservoir (5.01a) | Observe flow direction (direction of arrow)! | |
10 | Connect compressed air line (1) to check valve (8.01) | Compressed air line to compressed air distributor connector 23 | |
11 | Extend compressed air line (6) and route from left frame side to air reservoir (5.01a) along frame cross member | ||
12 | Connect compressed air line (6) to overflow valve with limited return flow (7.02) | ||
13 | Install overflow valve with return flow (7.01) on compressed air distributor (7) | Observe flow direction! | |
14 | Connect compressed air lines (1 and 5) to compressed air distributor (7) | Pay attention to marking. | |
15 | Route compressed air line (8) from right frame side to overflow valve with return flow (7.01) along frame cross member and connect | Fasten compressed air line with cable straps | |
16 | Check overflow valves and check valve for proper function | Check connectors for leakage. | |
|
Test kit
360 589 00 21 00
Parts ordering notes
Part no. | Designation | Quantity |
000 429 04 44 | Check valve | 1 |
000 429 38 38 | Angled piece | 1 |
000 997 20 72 | Connection | 1 |
000 431 45 31 | Test connector | 1 |
004 429 66 44 | Overflow valve with limited return flow (only if required) | 1 |