Caterpillar Performance Handbook, January 2017, SEBD0351-47

Appendix K ● Rear Suspension Details

On-Highway Trucks

Rear Suspension Details (cont’d)

Walking Beam Suspension

Chalmers Suspensions

800 Series ● Recommended for all types of applications, mixer, refuse, dump, logging, oilfield, mining, tanker, airport refueler and other vocational applications. ● Lightweight design, minimum maintenance, improved traction on uneven ground because axles do not transfer weight from one axle to the other. ● Loadguard hollow rubber spring is virtually indestructible, variable rate self damping for enhanced ride qualities laden and unladen. Greatly increased stability, combats side sway with wider spring centers. ● Full freedom of articulation both “parallel and diagonal.” ● Capacity range from 40,000 to 52,000 lb.

Air Suspension

HAS ● Suited for both on- and off-highway applications. ● Excellent ride quality. ● Approved for up to 25 percent off-highway use.

● Approved for use with lift axles. ● Optional inboard shocks available. ● Capacities of 40,000 and 46,000 lb. PRIMAAX ● Approved for 100% off-highway use. ● Ideal for heavy-haul, dump, logging, refuse, mixer, building/material supply and crane applications. ● Optimized configuration helps improve handling and roll stiffness for expanded applications. ● Axle connection and torque rods help reduce torsional axle stress and drive- line vibration. ● Large-volume, low frequency air springs provide a smooth ride for on- and off-road usage. ● Up to 12.5 in of diagonal wheel articulation for superior mobility. ● Capacities of 46,000 lb and 52,000 lb.

12

Edition 47 12-49