988K Millyard Arrangement

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Product Description

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.

Specifications
Us
Metric
Engine
Net Power
541.0 hp
403.0 kW
Engine Model
Cat® C18 ACERT™
Net Power - SAE J1349
541.0 hp
403.0 kW
Bore
5.7 in
145.0 mm
Stroke
7.2 in
183.0 mm
Displacement
1105.0 in3
18.1 L
Torque Rise
58.0 %
58.0 %
Rated Speed
1,700 rpm
Emissions
U.S. EPA Tier 4 Final/EU Stage IV Technology or Tier 2 Equivalent
Gross (ISO 14396)
580.0 hp
432.0 kW
Peak Power Speed
1,500 rpm
Peak Power Speed @ 1,500 rpm: Gross - ISO 14396
580.0 hp
432.0 kW
Peak Power Speed @ 1,500 rpm: Gross - SAE J1995
588.0 hp
439.0 kW
Peak Power Speed @ 1,500 rpm: Net Power - SAE J1349
541.0 hp
403.0 kW
Peak Torque @ 1,200 rpm
2104.0 lb ft
2852.0 N·m
Operating Specifications
Operating Weight
139920.0 lb
63600.0 kg
Tipping Load - Articulated 37°
68005.0 lb
30910.0 kg
Tipping Load - Straight
78115.0 lb
35500.0 kg
Transmission
Transmission Type
Cat planetary power shift
Forward 1
4.0 mph
6.5 km/h
Forward 2
7.2 mph
11.6 km/h
Forward 3
12.7 mph
20.4 km/h
Forward 4
21.6 mph
34.7 km/h
Reverse 1
4.7 mph
7.5 km/h
Reverse 2
8.3 mph
13.3 km/h
Reverse 3
14.4 mph
23.2 km/h
Direct Drive - Forward 1
Lock-up disabled
Direct Drive - Forward 2
7.8 mph
12.5 km/h
Direct Drive - Forward 3
13.9 mph
22.3 km/h
Direct Drive - Forward 4
24.4 mph
39.3 km/h
Direct Drive - Reverse 1
5.0 mph
8.0 km/h
Direct Drive - Reverse 2
8.9 mph
14.3 km/h
Direct Drive - Reverse 3
15.8 mph
25.5 km/h
Axles
Front
Fixed
Rear
Trunnion
Oscillation Angle
13°
Hydraulic System - Steering
Steering System - Circuit
Pilot, load sensing
Steering System - Pump
Piston, variable displacement
Relief Valve Setting - Steering
4351.0 psi
30000.0 kPa
Maximum Flow
71.3 gal/min
270.0 L/min
Steering Cycle Time (high idle)
3.4 Seconds
3.4 Seconds
Steering Cycle Time (low idle)
5.6 Seconds
5.6 Seconds
Total Steering Angle
74.0 Degrees
74.0 Degrees
Service Refill Capacities
Fuel Tank
188.0 gal
712.0 L
Cooling System
31.7 gal
120.0 L
Crankcase
15.9 gal
60.0 L
Transmission
31.7 gal
120.0 L
Differentials and Final Drives - Front
49.1 gal
186.0 L
Differentials and Final Drives - Rear
49.1 gal
186.0 L
Hydraulic System (tank only)
63.4 gal
240.0 L
Diesel Exhaust Fluid Tank
8.7 gal
33.0 L
Hydraulic System Factory Fill
125.5 gal
475.0 L
Forks
Fork End Area
69.0 ft2
6.4 m2
Dimensions - Millyard Linkage
Dump Angle at Maximum Lift
39.4 Degrees
39.4 Degrees
Fork Height at Maximum Lift
15.3 ft
4660.0 mm
Fork Height with Level Arms
8.1 ft
2468.0 mm
Fork Top Clamp Opening
12.3 ft
3741.0 mm
Front Axle Center Line to Fork Tip
15.6 ft
4765.0 mm
Ground to Bumper Clearance
3.1 ft
933.0 mm
Ground to Center of Front Axle
3.2 ft
978.0 mm
Ground to Lower Hitch Clearance
1.9 ft
568.0 mm
Ground to Top of Exhaust Stack
13.8 ft
4214.0 mm
Ground to Top of Hood
10.9 ft
3334.0 mm
Ground to Top of ROPS
13.8 ft
4221.0 mm
Hinge Pin Height at Maximum Lift
16.1 ft
4918.0 mm
Maximum Overall Length
41.0 ft
12502.0 mm
Rear Axle Center Line to Bumper
10.5 ft
3187.0 mm
Wheelbase
14.9 ft
4550.0 mm
Sound Performance - Standard
Machine Sound Level (ISO 6395)
111.0 dB(A)
111.0 dB(A)
Operator Sound Level (ISO 6396)
71.0 dB(A)
71.0 dB(A)
Hydraulic System - Lift/Tilt
Cylinders, Double Acting: Lift, Bore and Stroke
235 mm × 976 mm (9.25 in × 38.4 in)
Cylinders, Double Acting: Tilt, Bore and Stroke
292 mm × 671 mm (11.5 in × 26.4 in)
Lift/Tilt System
Variable displacement piston
Maximum Flow
13.7 gal/min
52.0 L/min
Maximum Flow at 1,400-1,860 rpm
153.0 gal/min
580.0 L/min
Pilot System
Variable displacement piston
Relief Valve Setting
580.0 psi
4000.0 kPa
Lift/Tilt System - Circuit
EH- Positive Flow Control, Flow Sharing
Relief Valve Setting - Lift/Tilt
4641.0 psi
32000.0 kPa
Sound Performance - Suppression
Machine Sound Level (ISO 6395)
109.0 dB(A)
109.0 dB(A)
Operator Sound Level (ISO 6396)
70.0 dB(A)
70.0 dB(A)
Brakes
Brakes
SAE J1473 OCT90, ISO 3450:1992
Standard/Optional

Standard Equipment

ELECTRICAL
OPERATOR ENVIRONMENT
POWER TRAIN
OTHER

Optional Equipment

POWER TRAIN
OPERATOR ENVIRONMENT
MISCELLANEOUS ATTACHMENTS

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