TB 48 Jake Brake Flashcards
1
Q
Jake break reacts in how many seconds?
A
1/4 of a second
2
Q
What are the retarding positions of the jake break?
A
1-minimum
2-moderate
3-maximum
3
Q
Auto transmission deactivates the jake brake at ____ R.P.M above idle?
A
150 rpm
4
Q
When is jake break used?
A
City traffic
Descending grades
Approaching stop lights
Whenever retarding is required
5
Q
How does the jake break work?
A
Converts Diesel engine into an air compressor by alternating exhaust brake (opening valve prematurely)
6
Q
When is jake break not to be used?
A
At low rpm
When up shifting
Don’t ride clutch
Wet streets
