BEFORE PLACING VEHICLE IN SERVICE
3-4 / Axles, Tires, and Brakes
© 2020 Pierce Manufacturing Inc. All Rights Reserved.
Figure 3-2: Brake Power Chart (Disc Brakes Front, Cam Brakes Rear)
POM0040
Figure 3-3: Brake Power Chart (Disc Brakes Front, Disc Brakes Rear)
POM0041
In-Service Axle
Weights (Lb.)
11,000-14,600 14,601-16,540 16,541-18,000 18,001-21,500
Axle Model FG941 FL941/FL943
14,000-17,000 RS21
Front:24 x 5-1/2
Rear:24 x 5-1/2
Front:24 x 5-1/2
Rear:24 x 5-1/2
17,001-21,000 RS21
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
21,001-24,000 RS23
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 6
24,001-27,000 RS25
Front:24 x 5-1/2
Rear:30 x 6
Front:24 x 5-1/2
Rear:30 x 6
Front:30 x 5-1/2
Rear:30 x 6
Front:30 x 5-1/2
Rear:30 x 6
27,001-31,000 RS30
Front:24 x 5-1/2
Rear:36 x 6
Front:24 x 5-1/2
Rear:36 x 6
Front:30 x 5-1/2
Rear:36 x 6
Front:30 x 5-1/2
Rear:36 x 6
34,000-42,000
RT34
RT40
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
42,001-48,000
RT44
RT46
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 6
48,001-54,000 RT52
Front:24 x 5-1/2
Rear:30 x 6
Front:24 x 5-1/2
Rear:30 x 6
Front:30 x 5-1/2
Rear:30 x 6
Front:30 x 5-1/2
Rear:30 x 6
54,001-58,000 RT58
Front:24 x 5-1/2
Rear:36 x 6
Front:30 x 5-1/2
Rear:36 x 6
Front:30 x 5-1/2
Rear:36 x 6
FRONT
R
A
ER
In-Service Axle
Weights (Lb.)
11,000-14,600 14,601-16,540 16,541-18,000 18,001-21,500
Axle Model FG941 FL941/FL943
14,600-17,000 RS21
Front:24 x 5-1/2
Rear:24 x 5-1/2
Front:24 x 5-1/2
Rear:24 x 5-1/2
17,001-22,000 RS21
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
22,001-24,000 RS23
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
24,001-27,000 RS25
27,001-31,000 RS30
34,000-42,000
RT34
RT40
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
42,001-48,000
RT44
RT46
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:24 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
Front:30 x 5-1/2
Rear:30 x 5-1/2
48,001-54,000 RT52
FRONT
RAER