IC Bus CE Series 2020, Operation And Maintenance Manual

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Maintenance Intervals and Specifications
Axle U-Bolt Nut Torque Chart
Torque
Feature Code Rear Suspension Capacity and Type
lb-ft N•m
14SBK 19,800-lb Capacity, 2 Stage Vari-Rate 260 - 300 353 - 407
14SBW 21,000-lb Capacity, V-Rate, with 4,500-lb Auxiliary Spring 260 - 300 353 - 407
12,000-lb Capacity, International Air Suspension (IROS) for axles 14ADN,
14ADP, 14AJC, 14AJE, 14ATP, and 14ATR. 260 - 300 353 - 407 14TBG
12,000-lb Capacity, International Air Suspension (IROS) for all other axles. 370 - 400 502 - 542
15,500-lb Capacity, International Air Suspension (IROS) for axles 14ADN,
14ADP, 14AJC, 14AJE, 14ATP, and 14ATR. 260 - 300 353 - 407 14TBH
15,500-lb Capacity, International Air Suspension (IROS) for all other axles. 370 - 400 502 - 542
23,000-lb Capacity, International Air Suspension (IROS) for axles 14ADN,
14ADP, 14AJC, 14AJE, 14ATP, and 14ATR. 260 - 300 353 - 407 14TBT
23,000-lb Capacity, International Air Suspension (IROS) for all other axles. 260 - 300 353 - 407
14VAB 13,500-lb Capacity, RR, Springs, Vari-Rate, with 4,500-lb Auxiliary Rubber Spring 260 - 300 353 - 407
14VAC 15,500-lb Capacity, RR, Springs, Vari-Rate, with 4,500-lb Auxiliary Rubber Spring 260 - 300 353 - 407
14VAD 18,500-lb Capacity, RR, Springs, Vari-Rate, with 4,500-lb Auxiliary Rubber Spring 260 - 300 353 - 407
14VAM 10,000-lb Capacity, RR, Steel Springs 260 - 300 353 - 407
14VAN 9,000-lb Capacity, RR, Steel Springs 260 - 300 353 - 407
NOTE: For all other vendor supplied suspensions, refer to vendor's Web site for proper torque specifications.
3ADA 8,000-lb Capacity, Parabolic Taper Leaf 260 - 300 353 - 407
3ADB 10,000-lb Capacity, Parabolic Taper Leaf 260 - 300 353 - 407
3AGZ 7,000-lb Capacity, Parabolic Taper Leaf 260 - 300 353 - 407
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