The power take-off with an oil pump is designed to take power from the gearbox and is attached to its crankcase on the right side
The parking brake control valve is used to control the spring energy accumulators of the parking and spare brake drive (Fig. 1, a - c)
The pressure limiting valve serves to reduce the air pressure in the brake chambers of the front axle during low-intensity braking, which improves stability and controllability (especially on slippery roads), as well as to quickly release air from the brake chambers when releasing the brakes