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Caterpillar 988H Wheel Loader
| Overview & Specifications | Features & Benefits | Standard Equipment | Optional Equipment | Work Tools & Attachments | |||||||||||
| Engine | |
| Net Power | 501 hp / 373 kW |
| Engine Model | Cat® C18 ACERT™ |
| Gross Power | 555 hp / 414 kW |
| Net Power - EEC 80/1269 | 501 hp / 373 kW |
| Net Power - ISO 9249 | 501 hp / 373 kW |
| Gross Power - ISO 3046-2 | 520 hp / 388 kW |
| Bore | 5.7 in / 145 mm |
| Stroke | 7.2 in / 183 mm |
| Displacement | 1104.5 in3 / 18.1 L |
| Rated Speed | 1800rpm |
| Operating Specifications | |
| Operating Weight | 109249 lb / 49546 kg |
| Rated Payload | 12.5 tons / 11.4 tonnes |
| Rated Payload - Standard | 12.5 tons / 11.4 tonnes |
| Static Tipping Load, Full Turn | 64745.28 lb / 29368 kg |
| Static Tipping Load, Full Turn - HL | 59945.82 lb / 27191 kg |
| Dump Clearance | 12.28 ft / 3742 mm |
| Breakout Force | 85067.69 lb / 378.4 kN |
| Cat Truck Match - Standard | 769D |
| Operating Weight - HL | 111176.78 lb / 50429 kg |
| Bucket Capacity - HL | 9.16 yd3 / 7 m3 |
| Breakout Force - HL | 105278.01 lb / 468.3 kN |
| Articulation Angle | 43 Degrees / 43 Degrees |
| Buckets | |
| Bucket Capacities | 6.3 m3 - 7.0 m3 (8.2 yd3 - 9.2 yd3) |
| Max. Bucket Capacity | 9.2 yd3 / 7 m3 |
| Bucket Width | 12.12 ft / 3695 mm |
| Transmission | |
| Converter Drive - Forward 1 | 4.2 mph / 6.7 km/h |
| Converter Drive - Forward 2 | 7.3 mph / 11.8 km/h |
| Converter Drive - Forward 3 | 12.9 mph / 20.8 km/h |
| Converter Drive - Forward 4 | 22.3 mph / 36 km/h |
| Converter Drive - Reverse 1 | 4.7 mph / 7.6 km/h |
| Converter Drive - Reverse 2 | 8.4 mph / 13.5 km/h |
| Converter Drive - Reverse 3 | 14.7 mph / 23.7 km/h |
| Direct Drive - Forward 1 | Lock-up disabled |
| Direct Drive - Forward 2 | 7.7 mph / 12.3 km/h |
| Direct Drive - Forward 3 | 13.6 mph / 21.9 km/h |
| Direct Drive - Forward 4 | 24 mph / 38.6 km/h |
| Direct Drive - Reverse 1 | 4.9 mph / 7.9 km/h |
| Direct Drive - Reverse 2 | 8.8 mph / 14.1 km/h |
| Direct Drive - Reverse 3 | 15.6 mph / 25.1 km/h |
| Axles | |
| Maximum Single-Wheel Rise and Fall | 22.4 in / 568 mm |
| Front | Fixed |
| Rear | Oscillating |
| Oscillation Angle | 13 |
| 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 |
| Loader Hydraulic System | |
| Main Hydraulic System Output at 2010 rpm and 6900 kPa (1000 psi) | 130 gal/min / 492 L/min |
| Relief Valve Setting | 4500 psi / 31000 kPa |
| Cylinders, Double Acting: Lift, Bore and Stroke | 220 x 911 mm 8.7 x 35.9 in |
| Cylinder, Double Acting: Tilt, Bore and Stroke | 220 x 1770 mm 8.7 x 69.7 in |
| Pilot System, Gear-Type Pump Output at 2010 rpm and 2500 kPa (363 psi) | 20.1 gal/min / 76 L/min |
| Relief Valve Setting (low idle) | 348.1 psi / 2400 kPa |
| Steering | |
| Steering | Meets SAE and ISO standards |
| Total Steering Angle | 86 Degrees / 86 Degrees |
| Service Refill Capacities | |
| Fuel Tank | 188 gal / 712 L |
| Cooling System | 27.2 gal / 103 L |
| Crankcase | 15.9 gal / 60 L |
| Transmission | 18.5 gal / 70 L |
| Differentials and Final Drives - Front | 49 gal / 186 L |
| Differentials and Final Drives - rear | 49 gal / 186 L |
| Hydraulic System (factory fill) | 124.2 gal / 470 L |
| Hydraulic System (tank only) | 70.5 gal / 267 L |
| Dimensions* | |
| Height to Top of Exhaust Stacks | 13.54 ft / 4128 mm |
| Height to Top of ROPS/FOPS | 13.54 ft / 4128 mm |
| Height to Top of Hood | 10.35 ft / 3156 mm |
| Ground Clearance | 1.8 ft / 549 mm |
| Reach at Max. Lift/Dump - Std | 5.64 ft / 1720 mm |
| Reach at Max. Lift/Dump - HL | 5.96 ft / 1818 mm |
| Clearance at Max. Lift/Dump - Std | 12.43 ft / 3790 mm |
| Clearance at Max. Lift /Dump - HL | 13.79 ft / 4203 mm |
| Bucket Pivot at Max. Lift - Std | 17.85 ft / 5440 mm |
| Bucket Pivot at Max. Lift - HL | 19.2 ft / 5853 mm |
| Overall Height Bucket Raised - Std | 25.26 ft / 7699 mm |
| Overall Height Bucket Raised - HL | 26.61 ft / 8111 mm |
| Length - Rear Axle to Bumper | 10.28 ft / 3132 mm |
| Wheel Base Length | 14.93 ft / 4550 mm |
| Overall Length - Std | 38.6 ft / 11765 mm |
| Overall Length - HL | 40.06 ft / 12209 mm |
| Full Turn Static Tipping Load at 43° | 65186.2 lb / 29568 kg |
| Dump Clearance at Full Lift and 45° Dump - Std | 12.43 ft / 3790 mm |
| Reach at Full Lift and 45° Dump - Std | 5.64 ft / 1720 mm |
| Dump Clearance at Full Lift and 45° Dump - HL | 13.79 ft / 4203 mm |
| Reach at Full Lift and 45° Dump - HL | 5.96 ft / 1818 mm |
| Straight Static Tipping Load - Std | 77219.02 lb / 35026 kg |
| Straight Static Tipping Load - HL | 71980.84 lb / 32650 kg |
| Hinge Pin Height at Full Lift - Std | 17.85 ft / 5440 mm |
| Hinge Pin Height at Full Lift - HL | 19.2 ft / 5853 mm |
| Height to Top of Cab | 13.54 ft / 4128 mm |
| Height to Top of Air Cleaner | 11.1 ft / 3382 mm |
| Center Line of Rear Axle to Edge of Rear Bumper | 10.28 ft / 3132 mm |
| Center Line of Front Axle to Hitch | 7.46 ft / 2275 mm |
| Length with Bucket on Ground | 38.6 in / 11765 mm |
| Height to Center of Wheel | 3.21 ft / 978 mm |
| C-Pin Height | 3.31 ft / 1009 mm |
| Rack Back Angle at Ground | 47.8 Degrees / 47.8 Degrees |
| Rack Back Angle at Carry | 56.5 ft / 56.5 mm |
| Height to Spillguard | 17.82 ft / 5432 mm |
| B-Pin Height | 19.2 ft / 5853 mm |
| Dump Angle at Maximum Lift | 45 Degrees / 45 Degrees |
| Rack Back Angle at Maximum Lift | 65 Degrees / 65 Degrees |
