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Wabco 9617231430 Parking Brake Valve
Description
The
Wabco 9617231430 Hand Brake Valve is a critical component within air brake systems, functioning as both a parking brake and an additional valve to ensure vehicle immobilization and safety. This valve is commonly utilized in commercial vehicles and trailers to reliably engage and disengage the parking brake. Its design offers precise actuation and consistent performance, contributing to enhanced braking efficiency and operational reliability. This device measures 65 x 140 x 190 mm and features M16 x 1.5 JED - 388 port threads. It operates within a temperature range of -40°C to +80°C, and has an actuation angle of 73°. The calculated volume is 1.729, and the exhaust connection is a hose nozzle with a diameter of 6 mm.
Key Features & Benefits
This valve basically controls the air pressure that applies the spring brakes – those big brakes on the rear axles of trucks and trailers. It doesn't activate your regular service brakes, it handles the emergency and parking brakes. It takes air pressure away from those spring brake chambers, letting the springs apply the brakes, and then sends air back in to release them. It's a pretty simple idea, but it needs to work flawlessly. It has a few different functions depending on how it's set up – some are manual, you pull a lever or push a button, others are automatic, activating when the air system pressure drops.
Think of it as the gatekeeper for your emergency stopping power. It's part of the air brake system, obviously, but specifically it's responsible for holding the vehicle stationary when parked and providing a secondary braking system if you lose air pressure while driving. It’s crucial for safety, particularly with heavier vehicles where the regular brakes might struggle on a long descent. It works with the air compressor and all the air lines, but it's the component that actually makes those spring brakes grab.
Symptoms, Risks & Replacements
You’ll notice if this thing goes bad, trust me. Usually it'll start with the parking brake not holding properly – the vehicle might roll even with the brake engaged. Or, more seriously, the brakes could partially apply or release unexpectedly while you’re driving if it fails internally. That's obviously a really dangerous situation. It’s a safety item, plain and simple. You don't want to mess around with brakes. We see a lot of these come through, and a faulty valve can cause a whole cascade of issues. Fixparts Online carries a good range of them, and getting the right one installed quickly is the best way to avoid a bigger, more expensive problem.
Warranty Information
Wabco Parking Brake Valve (MPN 9617231430) comes with a 1-year warranty.