Top Performance. The AD55B underground articulated truck is designed for high production, low cost-per-ton hauling in underground mining applications.

Engine
Engine Model	Cat C27 ACERT
Rated Power	2000 RPM
Gross Power - SAE J1995	805 hp
Net Power - SAE J1349	751 hp
Net Power - ISO 9249	751 hp
Net Power - 80/1269/EEC	751 hp
Bore	5.4 in
Stroke	6 in
Displacement	1648 in3
Gross Power	805 hp
Operating Specifications
Gross Machine Operating Weight	231485 lb
Nominal Payload Capacity	121254 lb
Weights
Empty	110231 lb
Front Axle	75398 lb
Rear Axle	34833 lb
Loaded	231485 lb
Front Axle	116668 lb
Rear Axle	114817 lb
Weight Distribution
Empty	.
Front Axle	68.4 %
Rear Axle	31.6 %
Loaded	.
Front Axle	50.4 %
Rear Axle	49.6 %
Transmission
Forward 1	4.1 mph
Forward 2	5.8 mph
Forward 3	7.5 mph
Forward 4	10.4 mph
Forward 5	14.1 mph
Forward 6	19.1 mph
Forward 7	25.8 mph
Reverse 1	5.4 mph
Final Drives
Differential Ratio	3.46:1
Final Drive Ratio	5.5:1
Total Reduction Ratio	19.04:1
Body Hoist
Raise	12 Seconds
Lower	24 Seconds
Total Cycle Time	36 Seconds
Body Capacities
Dump Body - Standard	35.2 yd3
Dump Body - Optional	44.2 yd3
Dump Body - Optional	47.9 yd3
Turning Dimensions
Outside Clearance Radius	393.9 in
Inside Turning Radius	218.1 in
Frame Oscillation	10 Degrees
Articulation Angle	42.5 Degrees
Dimensions
Overall Width	118.1 in
Tunnel Clearance Width	177.2 in
Tunnel Clearance Height	177.2 in
Height to Top of Load (2:1)	142.1 in
Loading Height	115.2 in
Overall Height - Body Raised	250.3 in
Height to Top of ROPS	110.9 in
Overall Length	440.7 in
Wheelbase	219.3 in
Ground Clearance	17 in
Dump Clearance	26.2 in
Rear Wheel to Body Raised	49.9 in
Rear Axle to Tail	75 in
Max Overall Length	457.6 in
Centerline of Front Axle to Centerline of Hit	75.6 in
Front Axle to Front Bumper	146.4 in
Height to Top of Body	119.5 in
Overall Tire Width	118.1 in
Service Refill Capacities
Engine Crankcase with Filter	26.2 gal
Transmission	14 gal
Hydraulic Tank	68.2 gal
Cooling System	36.5 gal
Front Differentials and Final Drives	36.5 gal
Rear Differentials and Final Drives	36.5 gal
Fuel Tank	253.6 gal
Tires
Tire Size	35 x 65 R33
Standards
Brakes	ISO3450, AS2958.1, CAN-CSA424.30-M90
Cab/FOPS	ISO3449, SAEJ231, AS2294.3, EN13627
Cab/ROPS	ISO3471, SAEJ1040, AS2294.2, EN13510

ELECTRICAL

Alarm, Back-up

Alternator, 95-amp

Batteries, Maintenance Free

Battery Disconnect Switch-Ground Level

Brake and Tail Lights

Caterpillar Electronic Monitoring System (CEMS)

Corrosive Protection Spray

Diagnostic Connector

Engine Shutdown Switch

Headlights With Dimmer Switch

Jump Start Receptacle

Rear Work Light (Cab Mounted)

Reversing Lights

Starting And Charging System (24-Volt)

Turn Signal Indicators

POWERTRAIN

All Wheel Disc Brakes

Automatic Retarder Control

Auto Shift Transmission 7 Speed Forward / 1 Speed Reverse

Control Throttle Shifting

12 Cylinder C27 ACERT

Long Life Coolant

Parking Brakes (Four Wheels)

Programmable Gear Blockout With Tray Up

Programmable Ground Speed Limiting

Torque Converter With Automatic Lockup

OPERATOR ENVIRONMENT

Cab Pressurizer

Rear View Mirrors

Radio Ready

ROPS/FOPS Cab With Air Conditioning

Storage Compartment

Suspension Seat With Retractable Seat Belt

Tilt/Telescopic Steering Wheel

Trainer/Passenger Seat And Seat Belt

Windshield Wiper And Washer

OTHER STANDARD EQUIPMENT

Articulated And Oscillated Hitch

Belly Guards

Centralized Lubrication Points

Dump Body (26.9 m3, 35.2 yd3)

Exhaust Catalytic Converter/Muffler

Exhaust Covers

Firewall

Frame Lifting Lugs

Front And Rear Tow Pin

Front Axle Suspension

Oil Sample Adaptors

Residual Brake Pressure Switch

Tires - 35/65 R33 VSNT Radial Tires

Tray-Up Alarm

Black & White Camera & Monitoring System

Bodies

Body, (32.6 m3, 42.6 yd3)

Body, (33.8 m3, 44.1 yd3)

Body, (36.6 m3, 47.9 yd3)

Body Liners, Heavy Duty

Color Camera & Monitoring System

Dual Speed Control

EAM (Electronic Access Module)

Engine Shutdown on Fire System Activation

Fast Fill System

Coolant

Engine

Fuel

Hydraulic

Transmission

Fire Extinguisher, Hand Held

Front Rubber Bumpers

ID Numbers For Rims

Idle Timer

Isolation Switches

Onboard Fire System, 65L

Retractable Visor Group

Seat Covers

Secondary Steering System

Spare Rim

TPMS (Truck Payload Measurement System)

TPMS Remote Display Payload Indicator