884 / 2440
Edition 47 12-23
12
On-Highway Trucks
Driveline Braking
DRIVELINE BRAKING
Driveline Braking is used to augment the main service
brake system. A technology called Engine Compression
Braking allows the engine to remove horsepower from
the driveline by compressing air. In addition to provid-
ing additional stopping power, driveline braking also
reduces maintenance costs by prolonging the life of
brake linings. This technology is often referred to in the
industry as a “Jake Brake.”
NOTE:
Engine Compression Braking is recommended
for all CT660 driveline braking applications.
Engine Compression Brake HP vs. Engine RPM
Engine RPM
CT13
Level 1
Level 2
Level 3
1100
37
73
110
1300
57
113
170
1600
80
160
240
1700
110
220
330
1900
138
277
415
2100
157
313
470
Driver Selectable Engine Compression
Brake Levels
NOTE:
The driver can select levels 1-3 at anytime with a
3 way toggle switch, even during braking.
An alternate Driveline Braking option is a Transmis-
sion Retarder. This is an option within the Cat CX31
automatic Transmission. It cannot be used in conjunc-
tion with Engine Compression Braking because of
driveline overload.
Engine RPM
Braking HP
900
100
1000
133
1100
164
1200
210
1300
265
1400
298
1500
335
1600
414
1700
550
1800
583
1900
615
2000
647
2100
680