Introduced in 1963, the 988 has been the industry leader for 50 years. Focused on helping our customers succeed, we have continued to build upon each new series. The 988K continues our legacy of reliability, performance, safety, operator comfort, serviceability, and efficiency. The 988K Millyard Arrangement is designed to meet the demands of millyard applications. The features of the 988K Millyard work together to provide a durable and reliable machine to meet the needs of the modern millyard.
Net Power | 541 HP |
Engine Model | Cat® C18 ™ |
Net Power - SAE J1349 | 541 HP |
Bore | 5.7 in |
Stroke | 7.2 in |
Displacement | 1105 in³ |
Torque Rise | 58 % |
Rated Speed | 1700/min |
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 | 580 HP |
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 | 541 HP |
Emissions | U.S. EPA Tier 4 Final/EU Stage V Technology or Tier 2 Equivalent |
Peak Torque - 1,200 rpm | 2104 lb/ft |
Gross - ISO 14396 | 580 HP |
Peak Power Speed | 1500/min |
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 | 588 HP |
Fork End Area | 69 ft² |
Operating Weight | 139920 lb |
Tipping Load - Straight | 78115 lb |
Tipping Load - Articulated 37° | 68005 lb |
Transmission Type | Cat-Planetenlastschaltgetriebe |
Forward - 1 | 4 mile/h |
Forward - 2 | 7.2 mile/h |
Forward - 3 | 12.7 mile/h |
Forward - 4 | 21.6 mile/h |
Reverse - 1 | 4.7 mile/h |
Reverse - 2 | 8.3 mile/h |
Reverse - 3 | 14.4 mile/h |
Direct Drive - Forward 1 | Lock-up disabled |
Direct Drive - Forward 2 | 7.8 mile/h |
Direct Drive - Forward 3 | 13.9 mile/h |
Direct Drive - Forward 4 | 24.4 mile/h |
Direct Drive - Reverse 1 | 5 mile/h |
Direct Drive - Reverse 2 | 8.9 mile/h |
Direct Drive - Reverse 3 | 15.8 mile/h |
Maximum Flow | 13.7 gal/min |
Pilot System | Variable displacement piston |
Maximum Flow at 1,400-1,860 rpm | 153 gal/min |
Relief Valve Setting - Main | 580 psi |
Cylinders, Double Acting - Tilt, Bore and Stroke | 292 mm × 671 mm (11.5 in × 26.4 in) |
Cylinders, Double Acting - Lift, Bore and Stroke | 235 mm × 976 mm (9.25 in × 38.4 in) |
Lift/Tilt System | Variable displacement piston |
Lift/Tilt System - Circuit | EH- Positive Flow Control, Flow Sharing |
Relief Valve Setting - Lift/Tilt | 4641 psi |
Fuel Tank | 188 gal (US) |
Cooling System | 31.7 gal (US) |
Crankcase | 15.9 gal (US) |
Transmission | 31.7 gal (US) |
Differential - Final Drives - Front | 49.1 gal (US) |
Differential - Final Drives - Rear | 49.1 gal (US) |
Hydraulic System - Tank Only | 63.4 gal (US) |
Hydraulic System Factory Fill | 125.5 gal (US) |
Diesel Exhaust Fluid Tank | 8.7 gal (US) |
Fork Top Clamp Opening | 12.3 ft |
Dump Angle at Maximum Lift | 39.4 ° |
Ground to Top of Hood | 10.9 ft |
Front Axle Centerline to Fork Tip | 15.6 ft |
Fork Height at Maximum Lift | 15.3 ft |
Wheel Base | 14.9 ft |
Ground to Lower Hitch Clearance | 1.9 ft |
Rear Axle - Centerline to Bumper | 10.5 ft |
Ground to Center of Front Axle | 3.2 ft |
Maximum Overall Length | 41 ft |
Ground to Top of ROPS | 13.8 ft |
Fork Height with Level Arms | 8.1 ft |
Ground to Bumper Clearance | 3.1 ft |
Hinge Pin Height at Maximum Lift | 16.1 ft |
Ground to Top of Exhaust Stacks | 13.8 ft |
Front | Fixed |
Rear | Trunnion |
Oscillation Angle | 13° |
Brakes | SAE J1473 OKT90, ISO 3450:1992 |
Steering System - Circuit | Pilot, load sensing |
Steering System - Pump | Piston, variable displacement |
Relief Valve Setting - Steering | 4351 psi |
Steering Cycle Times - High Idle | 3.4 s |
Steering Cycle Times - Low Idle | 5.6 s |
Maximum Flow | 71.3 gal/min |
Total Steering Angle | 74 ° |
Operator Sound Level (ISO 6396) | 71 dB(A) |
Machine Sound Level (ISO 6395) | 111 dB(A) |
Machine Sound Level (ISO 6395) | 109 dB(A) |
Operator Sound Level (ISO 6396) | 70 dB(A) |