AR42.60-W-0117A | Check dual-chamber air drier with integral pressure regulator for proper operation | 10.8.07 |
MODEL 930, 932, 933, 934, 940, 942, 943, 950, 952, 953, 954, 957 with CODE (B62) Heated compressed air drier (dual-chamber system)
W42.60-1130-06
1 Vent line
2 Timing cycle solenoid valve
6.15 Dual-chamber air drier with integral pressure regulator
Modification notes
| Checking | ||
1 | Check whether there is any condensate in the compressed air reservoir | If there is condensate in the compressed air reservoir: | |
Drain water from compressed air reservoir and replace air drier cartridges. | |||
2 | Check whether "air drier due" is displayed in the instrument | If the instrument displays "air drier due": | |
Replace air drier cartridges | |||
3 | Check dual-chamber air drier with integral pressure regulator (6.15) for leaks | To do this, spray the compressed air connections with a commercially available leak detecting spray or soapy water. | |
4 | Relieve reservoir pressure of compressed-air system completely | ||
5 | Detach vent line (1) of dual-chamber air drier with integral pressure regulator (6.15) | ||
| Dual-chamber air drier with integral pressure regulator modified, added. | ||
6 | Start the engine and fill the compressed-air system at idle speed | A slight air flow must be noticeable at the bore of the vent line (1). The air flow indicates that one of the two air drier cartridges is regenerated. | |
7 | Check the function of the timing cycle solenoid valve (2) on dual-chamber air drier with integral pressure regulator (6.15) | The timing cycle solenoid valve (2) which controls the drying and regeneration phase of the two air drier cartridges must switch every 60 seconds. After switching, a greater air flow must be noticeable for a short time at the bore of the vent line, if necessary: | |
Replace timing cycle solenoid valve (2). | |||
8 | Install vent line (1) on dual-chamber air drier with integral pressure regulator (6.15) | ||
9 | Checking and adjusting pressure regulator cutoff pressure |