Where should the tractor be when inspecting landing gear after uncoupling the trailer?
Where should the tractor be when you inspect the landing gear after uncoupling the trailer? A With the tractor frame under the trailer. Step 7: Stop with tractor frame under trailer (prevents trailer from falling to ground if landing gear should collapse or sink).
What gear should the tractor be in after uncoupling?
There is enough clearance between the tractor frame and the landing gear. When you are uncoupling a loaded trailer you should lower the landing gear until it: Make firm contact with the ground, then crackle hits a low gear a few extra turns.
What gear should the tractor be in after you uncouple from the trailer and are inspecting the trailer supports?
15. You want to inspect the trailer support. You should place the tractor transmission in which gear after you have uncoupled the trailer? Neutral.
What gear should the tractor be in?
Make sure the tractor is in neutral, then depress both the clutch and the brake pedal, and start it up. Release the parking brake if it’s engaged. Keep the clutch fully depressed as you put the tractor into a low gear. Slowly take your foot off the clutch to engage the tractor.
When inspecting the landing gear What should you check?
Inspect landing gear wheels for cleanliness, corrosion, and cracks. Check wheel tie bolts for looseness. Examine anti-skid wiring for deterioration. Check tires for wear, cuts, deterioration, presence of grease or oil, alignment of slippage marks, and proper inflation.
What do you after the landing gear is raised CDL?
After raising landing gear, secure crank handle safely. When full weight of trailer is resting on tractor: Check for enough clearance between rear of tractor frame and landing gear. (When the tractor turns sharply, it must not hit landing gear.)
When should you back a tractor under a trailer?
Which part of the kingpin should the locking jaws close around? 4. When you get ready to back under the semi trailer you should line up: A About 12 degrees off the line of the trailer.
What should you hook up before backing under the trailer?
After connecting the air lines but before backing under the trailer you should: A Supply air to the trailer system, then pull out the air supply knob.
When turning a corner with a tractor trailer trailer rear wheels follow?
When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called “offtracking” or “cheating.” Figure 6-4 to the right shows how offtracking causes the path followed by a tractor-semi to be wider than the rig itself. Longer vehicles will offtrack more.
Why should you lock the tractor glad hands?
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer? A It will keep dirt or water out of the lines. … Use the dummy couplers when the air lines are not connected to a trailer.
Do trailers made before 1975 have spring brakes?
A Often do not have spring brakes. Newer trailers have spring brakes just like trucks and truck tractors. However, converter dollies and trailers built before 1975 are not required to have spring brakes. Those that do not have spring brakes have emergency brakes, which work from the air stored in the trailer air tank.
When hooking a tractor to a trailer you’ll know the trailer is at the right height when the?
The trailer is at the right height when: It will be raised slightly when the tractor is backed under it. Which part of the kingpin should the locking jaws close around?
What gear do you use for steep hills?
The low gears are best when driving up a steep hill. Before you change up a gear, make sure that you accelerate first, a bit more than you would on a flat road.
Will a tractor start in gear?
Tractors will start in gear if normal starting circuitry is bypassed. Start the engine from the operator’s seat with the transmission in park.