Cat C7.1 Tier 3 engine (Standard)
The C7.1 ACERT Tier 3 engine arrangement rated at 168 kilowatts (225 horsepower) is the standard option for less stringent emission regulations. Matched to the engine is a Cat five-speed (three-speed reverse) transmission fitted with a lock-up torque converter.
Downtime during service and maintenance is reduced through some clever engineering and design features. Quick change air filters and 500-hour oil service intervals also reduce downtime and keep machines in operation for longer for greater productivity. The on-board warning & protection system continuously checks all critical machine functions for early warning and fast fault finding, recorded for analysis.
Cat C7.1 Tier 4 Final engine (Optional)
The C7.1 ACERT Tier 4 Final engine arrangement is optional, adhering to EU Stage V exhaust emission standards. The engine arrangement offers a dual horsepower configuration set at 151 kilowatts (202 horsepower) for a higher performance rating. The lower reduced ventilation rating at 129 kilowatts (173 horsepower) is possible through a simple software change performed by a Caterpillar dealer.
Cat Five-Speed Transmission
The field proven Caterpillar power shift countershaft transmission easily matches engine power to the load size and ground conditions. Electronic control makes fingertip controls possible, reducing operator fatigue and improving comfort.
Gear Application Gear ratios are designed to maximise productivity in specific cycle segments: Gear 1 provides highest rimpull capability for heavy load applications; Gear 2 and 3 for normal loads and higher speed operations; Gear 4 and 5 provide excellent empty return and roading speeds.