Maintenance Manual

Brake Chamber Stroke Specifications
Chamber
Max Applied Stroke: inch (mm)
Manufacturer Type
*
Size
†
Gunite
Standard Stroke
9
1-3/8 (35)
12
16
1-3/4 (45)20
24
30 2 (51)
36
‡
2-1/4 (57)
Long Stroke
16
2 (51)20
24
24
2-1/2 (64)
30
Haldex
Standard Stroke
12 1-3/8 (35)
16
1-3/4 (44)20
24
2-1/2-Inch Extended Stroke 24 2 (51)
3-Inch Extended Stroke 24 2-1/2 (64)
Standard Stroke 30 2 (51)
Long Stroke 30 2-1/2 (64)
Meritor
Standard Stroke
9
Less than 1-1/2 (38)
12
16
Less than 1-3/4 (44)
20
24 Less than 1-7/8 (48)
Long Stroke 24
Less than 2 (51)
Standard Stroke 30
*
Long stroke design is indicated by a tag, or embossing, on the brake chamber.
†
Specifications are relative to a brake application with 80 to 90 psi (550 to 620 kPa) air pressure in the brake chambers.
‡
If type 36 chamber is used, slack length should be less than 6 inches.
Table 2, Brake Chamber Stroke Specifications
Brakes 42
New Cascadia Maintenance Manual, January 2020 42/11