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(888) 312-8812 Login SignupThe WABCO Service Brake Chamber incorporates a manual caging bolt that allows technicians to mechanically release the parking brake when compressed air is unavailable. Turning the caging bolt compresses the internal spring, allowing disabled vehicles to be moved or towed safely without restoring system air pressure first. This built-in manual release feature makes roadside recovery and workshop servicing more practical when pneumatic pressure cannot be supplied. Using the WABCO 4235100470 provides the emergency release capability expected for compatible heavy-duty brake systems.
| Total Length | 121.0 mm |
| Distance between bolts | 120.6 mm |
| Push-Rod Length | 15 mm |
| Bolt Lengths | 38.5 mm |
| Type Of Operation | Disc |
| Return-Spring Force | 190 N |
| Version | Without boot |
| Bolt Threads | M16 x 1.5 |
| Max. operating pressure | 10.2 bar |
| Temperature Range | -40°C to +80°C |
| Stroke | 65.0 mm |
| Push-rod thread | Ball R8 |
| Weight | 0.0022046 |
| Port threads | 3/8" - 18 NPTF |
| Type | 22 |
| Brand | Part Number |
|---|---|
| VOLVO | 21897412 |
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