Rule 108 states that if a truck or bus is being driven on a stretch of road where a trucks and buses low buses low gear sign is in effect, the driver must do so in a gear that is low enough to limit the speed of the truck or bus without applying the primary brake. All truck and bus drivers are required by law to use low gear when traveling on Aᴜsᴛʀᴀʟɪᴀn roads that are marked with a truck & buses must use low gear sign. All drivers of trucks with a GVM greater than 4.5 tons must comply with this.
As a result, you must drive in a gear low enough to limit your car’s speed without applying the foot brake. Choosing the right gear for your vehicle will ensure that it descends at a steady speed, and anything less than that will be noted. The purpose of this guideline is to make sure you use the truck’s engine retardation to safely descend the drop. Drivers must constantly take safety seriously by choosing a safe entry to a long slope with ability and experience, especially when towing a heavy load, reducing ᴀᴄᴄɪᴅᴇɴᴛs and rollovers.
It is advised to stay in the designated lane only and to heed any applicable road signs for the descent. Always be cautious and stay within the speed limit; your top priority should be your safety. Your truck will be able to complete the full engine and/or exhaust brake retardation while moving at this speed.
Maintaining a high engine speed will enhance the truck’s retardation, but do not allow the rpm to rise above your maximum engine speed as this could seriously harm the engine. Additionally, keep your foot off the brake for lengthy periods of time. This has been shown to raise brake temperature, which could lead to brake fade and faster wear.
Use the service brakes to keep the car under control if your engine exhibits any signs of accelerating quickly. Downshifting should only be done extremely slowly and only when you are completely in control of the car when going downhill.
The most important thing to keep in mind is that safety always comes first. Driving a truck down a long descent can be extremely ʀɪsᴋy, so always be careful, drive within the speed limit, start the descent in a gear that will limit your speed, and avoid applying the brakes for an extended period of time. The last thing you want to do is ʜᴜʀᴛ yourself or other people. You don’t want to get fined, and you definitely don’t want to ᴅᴀᴍᴀɢᴇ your beloved truck.
Let’s see the crazy Crazy Bus ᴅᴀɴɢᴇʀᴏᴜs roads – Bus Nearly Falls off Cliff, Crossing Extremely Muddy & Steep Hill in the ᴀᴡᴇsome video below.
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Video resource: Tech Magazine