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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 | 541HP |
Engine Model | Cat® C18 ™ |
Net Power - SAE J1349 | 541HP |
Bore | 5.7in |
Stroke | 7.2in |
Displacement | 1105in³ |
Torque Rise | 58% |
Rated Speed | 1700/min |
Peak Power Speed - 1,500 rpm - Gross - ISO 14396 | 580HP |
Peak Power Speed - 1,500 rpm - Net Power - SAE J1349 | 541HP |
Emissions | U.S. EPA Tier 4 Final/EU Stage V Technology or Tier 2 Equivalent |
Peak Torque - 1,200 rpm | 2104lb/ft |
Gross - ISO 14396 | 580HP |
Peak Power Speed | 1500/min |
Peak Power Speed - 1,500 rpm - Gross - SAE J1995 | 588HP |
Operating Weight | 139920lb |
Tipping Load - Straight | 78115lb |
Tipping Load - Articulated 37° | 68005lb |
Transmission Type | Cat-Planetenlastschaltgetriebe |
Forward - 1 | 4mile/h |
Forward - 2 | 7.2mile/h |
Forward - 3 | 12.7mile/h |
Forward - 4 | 21.6mile/h |
Reverse - 1 | 4.7mile/h |
Reverse - 2 | 8.3mile/h |
Reverse - 3 | 14.4mile/h |
Direct Drive - Forward 1 | Lock-up disabled |
Direct Drive - Forward 2 | 7.8mile/h |
Direct Drive - Forward 3 | 13.9mile/h |
Direct Drive - Forward 4 | 24.4mile/h |
Direct Drive - Reverse 1 | 5mile/h |
Direct Drive - Reverse 2 | 8.9mile/h |
Direct Drive - Reverse 3 | 15.8mile/h |
Front | Fixed |
Rear | Trunnion |
Oscillation Angle | 13° |
Steering System - Circuit | Pilot, load sensing |
Steering System - Pump | Piston, variable displacement |
Relief Valve Setting - Steering | 4351psi |
Steering Cycle Times - High Idle | 3.4s |
Steering Cycle Times - Low Idle | 5.6s |
Maximum Flow | 71.3gal/min |
Total Steering Angle | 74° |
Fuel Tank | 188gal (US) |
Cooling System | 31.7gal (US) |
Crankcase | 15.9gal (US) |
Transmission | 31.7gal (US) |
Differential - Final Drives - Front | 49.1gal (US) |
Differential - Final Drives - Rear | 49.1gal (US) |
Hydraulic System - Tank Only | 63.4gal (US) |
Hydraulic System Factory Fill | 125.5gal (US) |
Diesel Exhaust Fluid Tank | 8.7gal (US) |
Fork End Area | 69ft² |
Maximum Flow | 13.7gal/min |
Pilot System | Variable displacement piston |
Maximum Flow at 1,400-1,860 rpm | 153gal/min |
Relief Valve Setting - Main | 580psi |
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 | 4641psi |
Fork Top Clamp Opening | 12.3ft |
Dump Angle at Maximum Lift | 39.4° |
Ground to Top of Hood | 10.9ft |
Front Axle Centerline to Fork Tip | 15.6ft |
Fork Height at Maximum Lift | 15.3ft |
Wheel Base | 14.9ft |
Ground to Lower Hitch Clearance | 1.9ft |
Rear Axle - Centerline to Bumper | 10.5ft |
Ground to Center of Front Axle | 3.2ft |
Maximum Overall Length | 41ft |
Ground to Top of ROPS | 13.8ft |
Fork Height with Level Arms | 8.1ft |
Ground to Bumper Clearance | 3.1ft |
Hinge Pin Height at Maximum Lift | 16.1ft |
Ground to Top of Exhaust Stacks | 13.8ft |
Operator Sound Level (ISO 6396) | 71dB(A) |
Machine Sound Level (ISO 6395) | 111dB(A) |
Machine Sound Level (ISO 6395) | 109dB(A) |
Operator Sound Level (ISO 6396) | 70dB(A) |
Brakes | SAE J1473 OKT90, ISO 3450:1992 |
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