988K Block Handler Arrangement

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988K Wheel Loader Block Handler Arrangement

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 Cat 988K Block Handler was designed to withstand the demanding and harsh environment of block handling applications. The features of the 988K Block Handler work together to provide a durable and reliable machine to meet your block handling needs.
  • Standard Equipment
  • Optional Equipment
  • Specs

Standard Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • ELECTRICAL
    • Alarm, back-up
    • Alternator, single 150 amp
    • Batteries, dry
    • Converter, 10/15 amp, 24V to 12V
    • Lighting system (halogen, work lights, access and service platform lighting)
    • Starting and charging system, 24V
    • Starter emergency start receptacle
    • Starter lockout in bumper
    • Transmission lockout in bumper
  • OPERATOR ENVIRONMENT
    • Graphical Information Display, displays real time operating information, performs calibrations and customizes operator settings
    • Air conditioner
    • Cat Detect Vision, rear vision camera system
    • Cab, sound suppressed and pressurized, integrated rollover protective structure (ROPS/FOPS) radio ready for entertainment, includes antenna, speakers and converter (12-volt 5-amp) and power port
    • Controls, lift and tilt function
    • Heater, defroster
    • Horn, electric
    • Instrumentation, gauges: - Coolant temperature - Engine hour meter - Hydraulic oil temperature - Power train oil temperature
    • Light, cab, dome
    • Lunchbox, beverage holders
    • Mirrors, rearview (externally mounted)
    • Rimpull Control System
    • Seat, Cat Comfort (cloth), air suspension, six-way adjustable
    • Seat belt, retractable, 76 mm (3 in) wide
    • STIC Control System
    • UV glass
    • Transmission gear indicator
    • Vital Information Management System (VIMS) with Graphical Information Display: External Data Port, Customizable Operator Profiles, Cycle Timer, Integrated Payload Control System
    • Wet-Arm wipers/washers (front and rear): - Intermittent front and rear wipers
    • Lights, directional
  • POWER TRAIN
    • Brakes, oil-cooled, multi-disc, service/secondary
    • Case drain screens
    • Crankcase guard
    • Electro hydraulic parking brake
    • Engine, C18 MEUI diesel, turbocharged/aftercooled
    • Ground level engine shutoff
    • Turbine precleaner, engine air intake
    • Radiator, Next Generation Modular (NGMR)
    • Starting aid, ether, automatic
    • Throttle lock, electronic
    • Torque converter, Impeller Clutch (ICTC) with Lock up clutch (LUC), Rimpull Control System
    • Transmission, planetary powershift, 4F/3R electronic control
  • OTHER
    • Automatic bucket lift kickout/positioner
    • Base machine price includes a rim allowance
    • Hydraulically driven demand fan
    • Couplings, Cat O-ring face seals
    • Doors, service access (locking)
    • Ecology drains for engine, radiator, hydraulic tank
    • Fuel tank, 731 L (188 gal)
    • Hitch, drawbar with pin
    • Hoses, Cat XT™
    • Hydraulic, steering and brake filtration/screening system
    • Cat Clean Emission Module
    • Oil sampling valves
    • Premixed 50% concentration of extended life coolant with freeze protection to -34° C (-29° F)
    • Rear access to cab and service platform
    • Steering, load sensing
    • Toe kicks
    • Vandalism protection caplocks

Optional Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • POWER TRAIN
    • -50° C (-58° F) antifreeze
    • Engine oil change system, high speed, Wiggins
    • Engine block heater 120V or 240V
    • High ambient cooling - software
    • Payload Control System (PCS)
  • OPERATOR ENVIRONMENT
    • Cab precleaner
    • AM/FM/CD/MP3 radio
    • Satellite Sirius radio with bluetooth
    • LED warning strobe
    • CB radio ready
    • Window pull down visor
  • MISCELLANEOUS ATTACHMENTS
    • Front and rear roading fenders
    • Fast fill fuel system (Shaw-Aero)

Specs

Overview

Long Name:
988K Block Handler Arrangement
Name:
988K Block Handler Arrangement
Brand:
Caterpillar
Status:
Current

Engine

Net Power:
541 HP / 403 kW
Engine Model:
C18 Cat®
Net Power - SAE J1349:
541 HP / 403 kW
Bore:
5.7 in / 145 mm
Stroke:
7.2 in / 183 mm
Displacement:
1105 in³ / 18.1 l
Torque Rise:
58 % / 58 %
Peak Power Speed - Gross - SAE J1995:
588 HP / 439 kW
Peak Power Speed:
1500 r/min / 1500 r/min
Peak Power Speed - Gross - ISO 14396:
580 HP / 432 kW
Peak Torque - 1,200 rpm:
2104 lb/ft / 2852 N·m
Peak Power Speed - Net Power - SAE J1349:
541 HP / 403 kW
Rated Speed:
1700 r/min / 1700 r/min
Gross - ISO 14396:
580 HP / 432 kW
Emissions:
Einhaltung von EPA Tier 4 Final (USA)/Stufe IV (EU), Tier-2-konform

Operating Specifications

Operating Weight:
135602 lb / 61508 kg

Transmission

Transmission Type:
Cat-Planetenlastschaltgetriebe
Forward - 1:
3.6 mile/h / 5.8 km/h
Forward - 2:
4.5 mile/h / 10.3 km/h
Forward - 3:
11.4 mile/h / 18.3 km/h
Forward - 4:
19 mile/h / 30.5 km/h
Reverse - 1:
4.1 mile/h / 6.6 km/h
Reverse - 2:
7.3 mile/h / 11.8 km/h
Reverse - 3:
13 mile/h / 20.8 km/h
Direct Drive - Forward 4:
21 mile/h / 34 km/h
Direct Drive - Reverse 2:
7.7 mile/h / 12.4 km/h
Direct Drive - Reverse 1:
4.3 mile/h / 6.9 km/h
Direct Drive - Forward 2:
6.7 mile/h / 10.8 km/h
Direct Drive - Forward 3:
11.9 mile/h / 19.2 km/h
Direct Drive - Forward 1:
Lock-up disabled
Direct Drive - Reverse 3:
13.7 mile/h / 22 km/h

Hydraulic System - Lift/Tilt

Maximum Flow at 1,400-1,860 rpm:
153 gal/min / 580 l/min
Cylinders, Double Acting - Lift, Bore and Stroke:
235 mm × 976 mm (9.3 in × 38.4 in)
Cylinders, Double Acting - Tilt, Bore and Stroke:
291 mm × 671 mm (11.5 in × 26.4 in)
Relief Valve Setting - Main:
551 psi / 3800 kPa
Maximum Flow at 1,700 rpm:
13.7 gal/min / 52 l/min
Pilot System:
Variable displacement piston
Relief Valve Setting - Lift/Tilt:
4757 psi / 32800 kPa
Lift/Tilt System:
Variable displacement piston
Lift/Tilt System - Circuit:
Pilot operated - EH control, flow sharing

Hydraulic Cycle Times

Lower Float Down:
3.5 s / 3.5 s
Rack Back:
4.5 s / 4.5 s
Total Hydraulic Cycle Time - Empty Bucket:
18.2 s / 18.2 s
Dump:
2.2 s / 2.2 s
Raise:
8 s / 8 s

Hydraulic System - Steering

Maximum Flow:
74 gal/min / 280 l/min
Steering Cycle Times - High Idle:
3.4 s / 3.4 s
Total Steering Angle:
86 ° / 86 °
Steering System - Circuit:
Pilot, load sensing
Steering Cycle Times - Low Idle:
5.6 s / 5.6 s
Relief Valve Setting - Steering:
4641 psi / 32000 kPa
Steering System - Pump:
Piston, variable displacement

Service Refill Capacities

Cooling System:
31.7 gal (US) / 120 l
Transmission:
31.7 gal (US) / 120 l
Differential - Final Drives - Rear:
49.1 gal (US) / 186 l
Fuel Tank:
188.1 gal (US) / 712 l
Crankcase:
15.9 gal (US) / 60 l
Diesel Exhaust Fluid Tank:
8.7 gal (US) / 33 l
Differential - Final Drives - Front:
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

Axles

Front:
Fixed
Rear:
Trunnion
Oscillation Angle:
13 ° / 13 °

Brakes

Brakes:
SAE J1473 OKT90, ISO 3450:1992

Sound Performance - Standard

Interior Sound Level:
71 dB(A) / 71 dB(A)
Exterior Sound Level:
111 dB(A) / 111 dB(A)

Sound Performance - Suppression

Interior Sound Level:
70 dB(A) / 70 dB(A)
Exterior Sound Level:
109 dB(A) / 109 dB(A)