Caterpillar Performance Handbook, January 2017, SEBD0351-47

Extreme Slope Operation

Track Loaders

EXTREME SLOPE OPERATION The maximum fore and aft grade in static condition on which each track loader will maintain proper lubri- cation is 45 degrees (100%). Consult Operation & Main- tenance Manual (if applicable) for POWER TRAIN fluid level overfill requirements for operation on extreme slopes. Extreme slope operation is anytime the slope exceeds 25° (47%). When working sidehills and slopes, consideration should be given to the following important points: ● Speed of travel — At higher speeds, inertia forces tend to make the track loader less stable. ● Roughness of terrain or surface — Ample allowance should be made where the terrain or surface is uneven. ● Mounted equipment — Buckets, rippers, winches, and other mounted equipment cause the track loader to balance differently. ● Nature of surface — New earthen fills may give way with the weight of the track loader. Rocky surfaces may promote side slipping of track loader.

The ENGINE should never be overfilled with oil. This may lead to rapid overheating. For extreme slope oper- ation, engine oil should be maintained at the full mark. NOTE: Both ENGINE and POWER TRAIN fluid levels should be checked on level ground before working sidehills and slopes.

● Track slippage due to excessive loads — This may cause downhill track to “dig in,” increasing angle of track loader. ● Width of shoes — Wide track shoes tend to decrease “digging in,” hence track loader is more stable. ● Operated equipment — Be aware of the stability and other performance features of the equipment operated by the track loader. ● Keep all attachments or pulled loads low to the ground for optimum stability.

NOTE: Safe operation on steep slopes may require special machine maintenance as well as excellent operator skill and proper equipment for the specific application. Consult Operation & Maintenance Manual (if applicable) for proper fluid level requirements.

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Edition 47 18-27