988

Engine
Net Power - SAE J1349:2011	541 HP / 401 kW
Engine Power - ISO 14396:2002	580 HP / 432 kW
Gross Power - SAE J1995:2014	588 HP / 439 kW
Engine Model	Cat® C18 ™
Peak Power Speed	1500/rpm
Rated Speed	1700/min
Emissions	U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards, Brazil MAR-1 and China Nonroad Stage IV emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA, and U.S. EPA Tier 2 and EU Stage II
Bore	5.7 in / 145 mm
Stroke	7.2 in / 183 mm
Displacement	1105 in³ / 18.1 l
Peak Torque - 1,200 rpm	2230 lb/ft / 3023 N·m
Torque Rise	58 %

Operating Specifications
Operating Weight	112574 lb / 51062 kg
Rated Payload - Quarry Face	12.5 t / 11.3 t
Rated Payload - Loose Material	16 t / 14.5 t
Bucket Capacity Range	4.7-13 m3 (6.2-17 yd3)
Cat Truck Match - Standard	770~772
Cat Truck Match - High Lift	773~775

Transmission
Transmission Type	Cat planetary powershift
Forward - 1	4 mile/h / 6.5 km/h
Forward - 2	7.2 mile/h / 11.6 km/h
Forward - 3	12.7 mile/h / 20.4 km/h
Forward - 4	21.6 mile/h / 34.7 km/h
Reverse - 1	4.7 mile/h / 7.5 km/h
Reverse - 2	8.3 mile/h / 13.3 km/h
Reverse - 3	14.4 mile/h / 23.2 km/h
Direct Drive - Forward 1	Lock-up disabled
Direct Drive - Forward 2	7.8 mile/h / 12.5 km/h
Direct Drive - Forward 3	13.9 mile/h / 22.3 km/h
Direct Drive - Forward 4	24.4 mile/h / 39.3 km/h
Direct Drive - Reverse 1	5 mile/h / 8 km/h
Direct Drive - Reverse 2	8.9 mile/h / 14.3 km/h
Direct Drive - Reverse 3	15.8 mile/h / 25.5 km/h

Hydraulic System - Lift/Tilt
Lift/Tilt System - Circuit	EH- Positive Flow Control, Flow Sharing
Lift/Tilt System	Variable displacement piston
Maximum Flow at 1,400-1,860 rpm	153 gal/min / 580 l/min
Relief Valve Setting - Lift/Tilt	4757 psi / 32800 kPa
Cylinders, Double Acting - Lift, Bore and Stroke	210 mm × 1050 mm (8.7 in × 41.3 in)
Cylinders, Double Acting - Tilt, Bore and Stroke	269 mm × 685 mm (8.7 in × 27 in)
Pilot System	Variable displacement piston
Relief Valve Setting - Main	551 psi / 3800 kPa

Hydraulic Cycle Time (1,400-1,860 rpm)
Rack Back	4.5 s
Raise	8 s
Dump	2.2 s
Lower Float Down	3.5 s
Total Hydraulic Cycle Time - Empty Bucket	18.2 s

Hydraulic System - Steering
Steering System - Circuit	Pilot, load sensing
Steering System - Pump	Piston, variable displacement
Maximum Flow	71.3 gal/min / 270 l/min
Relief Valve Setting - Steering	4351 psi / 30000 kPa
Total Steering Angle	86 °
Steering Cycle Times - High Idle	3.4 s
Steering Cycle Times - Low Idle	5.6 s

Air Conditioning System
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 kg of refrigerant which has a CO2 equivalent of 2.574 metric tonnes.

Axles
Front	Fixed
Rear	Trunnion
Oscillation Angle	13 °

Brakes
Brakes	ISO 3450:2011

Operator's Cab
ROPS/FOPS	ROPS/FOPS meet ISO 3471:2008 and ISO 3449:2005 Level II standards

Service Refill Capacities
Fuel Tank	188 gal (US) / 712 l
Cooling System	31.7 gal (US) / 120 l
Coolant (Validated by Test Cell Fill Quantities)	33 gal (US) / 125 l
Crankcase	15.9 gal (US) / 60 l
Diesel Exhaust Fluid Tank	8.7 gal (US) / 33 l
Transmission	31.7 gal (US) / 120 l
Transmission - Validated by Test Cell Fill Quantities	29 gal (US) / 110 l
Differential - Final Drives - Front	49.1 gal (US) / 186 l
Differential - Final Drives - Rear	49.1 gal (US) / 186 l
Hydraulic System Factory Fill	125.5 gal (US) / 475 l
Hydraulic System - Tank Only	63.4 gal (US) / 240 l

Sound Performance - Tier 4 Final / Stage V - Standard
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	111 dB(A)

Sound Performance - Tier 3 / Stage III - Standard
Operator Sound Pressure Level (ISO 6396:2008)	73 dB(A)
Machine Sound Power Level (ISO 6395:2008)	112 dB(A)

Dimensions (Approximate) - Standard Lift Linkage
Ground to Top of ROPS	13.8 ft / 4202 mm
Ground to Top of Exhaust Stacks	14.8 ft / 4521 mm
Ground to Top of Hood	10.9 ft / 3334 mm
Rear Axle - Centerline to Bumper	10.5 ft / 3187 mm
Front Axle Centerline to Bucket Tip	14 ft / 4254 mm
Wheel Base	14.9 ft / 4550 mm
Maximum Overall Length	39.3 ft / 11991 mm
Ground to Lower Hitch Clearance	1.9 ft / 568 mm
Clearance at Maximum Lift	11.9 ft / 3641 mm
B-Pin Height - Maximum Lift	18 ft / 5491 mm
Maximum Overall Height - Bucket Raised	24.5 ft / 7455 mm
Reach - Maximum Lift	6.5 ft / 1981 mm

Dimensions (Approximate) - High Lift Linkage
Ground to Top of ROPS	13.8 ft / 4202 mm
Ground to Top of Exhaust Stacks	14.8 ft / 4521 mm
Ground to Top of Hood	10.9 ft / 3334 mm
Rear Axle - Centerline to Bumper	10.5 ft / 3187 mm
Front Axle Centerline to Bucket Tip	15.3 ft / 4661 mm
Wheel Base	14.9 ft / 4550 mm
Maximum Overall Length	40.7 ft / 12398 mm
Ground to Lower Hitch Clearance	1.9 ft / 568 mm
Clearance at Maximum Lift	13.3 ft / 4043 mm
B-Pin Height - Maximum Lift	19.3 ft / 5887 mm
Maximum Overall Height - Bucket Raised	25.8 ft / 7849 mm
Reach - Maximum Lift	6.8 ft / 2062 mm

Buckets
Bucket Capacities	4.7-13 m3 (6.2-17 yd3)