Heavy Equipment
Wheel Loaders
| 988H Wheel Loader |
988H Technical Data
Specifications below are provided online by Caterpillar.
| Engine | |
|---|---|
| Net Power | 373 kW / 501 hp |
| Engine Model | Cat® C18 ACERT® |
| Gross Power | 414 kW / 555 hp |
| Net Power - EEC 80/1269 | 373 kW / 501 hp |
| Net Power - ISO 9249 | 373 kW / 501 hp |
| Gross Power - ISO 3046-2 | 388 kW / 520 hp |
| Bore | 145 mm / 5.7 in |
| Stroke | 183 mm / 7.2 in |
| Displacement | 18.1 L / 1104.5 in³ |
| Operating Specifications | |
|---|---|
| Operating Weight | 50144 kg / 110549 lb |
| Rated Payload | 11.4 tonnes / 12.5 tons |
| Transmission | |
|---|---|
| Converter Drive - Forward 1 | 6.7 km/h / 4.2 mph |
| Converter Drive - Forward 2 | 11.8 km/h / 7.3 mph |
| Converter Drive - Forward 3 | 20.8 km/h / 12.9 mph |
| Converter Drive - Forward 4 | 36 km/h / 22.3 mph |
| Converter Drive - Reverse 1 | 7.6 km/h / 4.7 mph |
| Converter Drive - Reverse 2 | 13.5 km/h / 8.4 mph |
| Converter Drive - Reverse 3 | 23.7 km/h / 14.7 mph |
| Direct Drive - Forward 1 | Lock-up disables |
| Direct Drive - Forward 2 | 12.3 km/h / 7.7 mph |
| Direct Drive - Forward 3 | 21.9 km/h / 13.6 mph |
| Direct Drive - Forward 4 | 38.6 km/h / 24 mph |
| Direct Drive - Reverse 1 | 7.9 km/h / 4.9 mph |
| Direct Drive - Reverse 2 | 14.1 km/h / 8.8 mph |
| Direct Drive - Reverse 3 | 25.1 km/h / 15.6 mph |
| Hydraulic Cycle Time | |
|---|---|
| Raise | 9.4 Seconds / 9.4 Seconds |
| Dump | 2.4 Seconds / 2.4 Seconds |
| Lower Float Down (Empty) | 3.8 Seconds / 3.8 Seconds |
| Total Hydraulic Cycle Time | 15.6 Seconds / 15.6 Seconds |
| Service Refill Capacities | |
|---|---|
| Fuel Tank | 712 L / 188 gal |
| Cooling System | 103 L / 27.2 gal |
| Crankcase | 60 L / 15.9 gal |
| Transmission | 70 L / 18.5 gal |
| Differentials and Final Drives - Front | 186 L / 49 gal |
| Differentials and Final Drives - rear | 186 L / 49 gal |
| Hydraulic System (factory fill) | 470 L / 124.2 gal |
| Hydraulic System (tank only) | 267 L / 70.5 gal |
| Dimensions | |
|---|---|
| Height to Top of Exhaust Stacks | 4112 mm / 13.49 ft |
| Height to Top of Hood | 3156 mm / 10.35 ft |
| Ground Clearance | 549 mm / 1.8 ft |
| Height to Top of Cab | 4128 mm / 13.54 ft |
| Height to Top of Air Cleaner | 3382 mm / 11.1 ft |
| Center Line of Rear Axle to Edge of Rear Bumper | 3132 mm / 10.28 ft |
| Center Line of Front Axle to Hitch | 2275 mm / 7.46 ft |
| C-Pin Height | 1009 mm / 3.31 ft |
| Dig Depth | 226 mm / .74 ft |
| Rack Back Angle at Ground | 47.8 Degrees / 47.8 Degrees |
| Rack Back Angle at Carry | 56.5 mm / 56.5 ft |
| Clearance at Maximum Lift/Dump | 3879 mm / 12.73 ft |
| Height to Spillguard | 5432 mm / 17.82 ft |
| B-Pin Height | 5853 mm / 19.2 ft |
| Rack Back Angle at Maximum Lift | 45 Degrees / 45 Degrees |
| Buckets | |
|---|---|
| Bucket Capacities | 6.4 m³-7.7 m³ 8.3 yd³-10 yd³ |
| Max. Bucket Capacity | 7.7 m³ / 10 yd³ |
| Axles | |
|---|---|
| Maximum Single-Wheel Rise and Fall | 568 mm / 22.4 in |
| Front | Fixed |
| Rear | Oscillating ±13° |
| Steering | |
|---|---|
| Steering | Meets SAE and ISO standards |
| Total Steering Angle | 86 Degrees / 86 Degrees |
| Loader Hydraulic System | |
|---|---|
| Main Hydraulic System Output at 2010 rpm and 6900 kPa (1000 psi) | 492 L/min / 130 gal/min |
| Relief Valve Setting | 35000 kPa / 5075 psi |
| Cylinders, Double Acting: Lift, Bore and Stroke | 220 × 911 mm 8.7 × 35.9 in |
| Cylinder, Double Acting: Tilt, Bore and Stroke | 220 × 1770 mm 8.7 × 69.7 |
| Pilot System, Gear-Type Pump Output at 2010 rpm and 2500 kPa (363 psi) | 76 L/min / 20.1 gal/min |
| Relief Valve Setting (low idle) | 2400 kPa / 348.1 psi |