Brake Proportioning/Combination Valve: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Load Proportioning Valve | 1.5 | 1.0 | B | |
| Pressure Metering Valve | ||||
| Both | 0.7 | 0.4 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Load Proportioning Valve | 1.5 | 1.0 | B | |
| Pressure Metering Valve | ||||
| Both | 0.7 | 0.4 | B |