MT 3300AC_Form MT33AC_05.

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Mining Trucks | 150 short ton (136 metric ton) Payload Capacity

MT 3300AC MINING TRUCK

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The TEREX Unit Rig MT 3300AC

Is Specifically Designed
For High-Volume
Surface Mining.
AC Drive System This process produces an increase in the
endurance limit, which translates into a signifi-
TEREX Unit Rig’s MT 3300AC features the cant increase in the fatigue life of the weld
GE150AC™ drive system that can signif- joint.
icantly reduce friction brake wear. This
new drive system allows the truck to The critical areas of the frame features deep
transition from full propel to 90% section main rails to reduce stress which will
retard in less than two seconds, increase the fatigue life of the frame.
and the dynamic retarding controls The tubular center cross beam with integral
truck speed down to less than hoist cylinder and axle box attachment elimi-
one mile (1.6 km) per hour. nates torsional and eccentric loads associated
Using IGBT technology, the drive with conventional designs. The axle box
system is able to utilize a wide attachment features a replaceable bearing
range of horsepower. The AC truck surface that is lubricated, sealed and integrated
matches the demands of the most into the crossmember for easy access and
severe haul conditions and still maintains maintenance.
excellent service availability. The MT 3300AC axle box features a stress
skin design that eliminates some
internal structure and saves up
Durable Construction
to 1,000 lb (450 kg) of weight.
A rugged, durably constructed frame is And, the nose cone attachment
the key element to a long haul truck uses a patented large two piece
life. The MT 3300AC features a bearing, which reduces contact
straight rail design to eliminate pressure on the bearing to less than
sources of stress concentration 1400 psi (9 653 kPa) and extends bear-
such as bends and breaks. ing life.

It boasts a double box section construc- In addition, a panhard bar lateral support pro-
tion utilizing high-strength, low alloy, controlled vides simple, easy to maintain lateral stabiliza-
rolled steel. This material simplifies welding pro- tion for the rear axle.
cedures and reduces the chance of hydrogen
embrittlement during welding.
A submerged arc welding process further Solid Body
reduces stress with full-penetration weld joints.
The MT 3300AC offers a horizontal bolster
design which absorbs more impact energy for
reduced body side damage. This unique
design also simplifies construction, and saves
up to 1,500 lb (680 kg) over conventional ver-
tical bolster designs.
A patented floor bolster to dump body floor
rail joint also eliminates a high stress area in
the body construction and allows increased
structural flexibility, thereby improving the
fatigue life of the body.
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Safe, Productive Environment

The TEREX Unit Rig integrated ROPS Cab cab instrumentation to reduce eyestrain, and a
provides a full 180 degrees of vision, and pressurized and fresh air filtration system to
meets SAE J1040 requirements. The TEREX reduce dust contamination and keep drivers
Unit Rig MT Series ROPS cab is designed for comfortable and productive.
safe operation incorporating cab-under-floor
In addition, a sound abatement package reduces
protection from flying debris, and tailgate pro-
the noise level in the cab to a sound exposure
tection in the event of a truck collision.
Leq (equivalent sound level) of less than 82 dB(A)
The MT 3300AC cab features an efficient inte- when tested per ANSI/SAE J1166 MAY90.
rior with room for two full size seats, back-lit

Smooth Ride

The independent front beam axle provides the extended tire life. The king pin is located in
MT 3300AC with the smoothest ride in mining. close proximity to the tire center line to reduce
The axle is pin connected to the main frame tire scrubbing, and absorb steering forces.
with four drag links and two suspensions plus
a panhard rod for lateral stability. This arrange-
ment reduces stress loads to the frame by 50
percent.
In addition all steering components are mount-
ed directly to the front axle for simplicity with
fewer moving parts. For ease of maintenance
all components are easily accessible, and the
oversized wheel bearings feature a projected
life of 20,000 hours.
The independent front beam axle provides true
tire tracking regardless of suspension stroke
for improved handling, maneuverability, and
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MT 3300AC
150 short ton (136 metric ton) Payload

ENGINES AVAILABLE

Manufacturer MTU/DDC Cummins

Operating Cycle 4 Stroke Diesel 4 Stroke Diesel
Model 12 V 4000 QSK45
Number of Cylinders 12 12
Rated Power 1,725 hp (1286 kW), 1,875 hp (1 398 kW) 1600 hp (1193 kW), 1875 hp (1 398 kW)
*Flywheel HP 1,570 hp (1171 kW), 1,720 hp (1 283 kW) 1480 hp (1104 kW), 1720 hp (1 283 kW)
Weight Dry 13,325 lb (6 044 kg) 12,820 lb (5 814 kg)
*Flywheel hp is the rated horsepower at the engine flywheel minus the average accessory losses. Accessory losses include radiator fan and battery-charging
alternator. Rating based on 500 ft (152 m) altitude @ 85°F (29°C) ambient temperature. No deration required up to 10,000 ft (3 048 m) for the Detroit Diesel.

GE150AC™ DRIVE SYSTEM

STANDARD

Alternator GE GTA 22
Traction Motor GEB23
Gear Ratio 28.8
Control IGBT
Speed (Max) MPH (km/h) 40 (64)
NOTE: Drive system application depends on Gross Vehicle Weight, haul RETARDING
road grade and length, rolling resistance, engine HP and other parame-
ters. Each application must be analyzed to ensure optimum truck specifi- Electrical dynamic retarding with continuous rated blown
cations. grids.
Reverse retarding standard.

SUSPENSION STD
Grids 9 Element
Four nitrogen-over-oil cylindrical
suspension struts provide maxi- Maximum Continuous Rating 2,700 hp (2 011 kW)
mum driver comfort and are inter-
changeable left to right, keeping
inventory cost low. Upper and lower BRAKE SYSTEMS
suspension attachment points to
the frame are clevis and pin con- Hydraulic brake actuation system features: fully modulat-
nected, providing rugged reliability ed service brakes (foot operated), fully modulated sec-
and easy maintenance. ondary brake (hand operated), loading brake and spring
apply, hydraulically released parking brake. Hydraulic
The rear axle incorporates a clevis
pressure is supplied by accumulators (3) charged by a
and pin lateral stabilizer link to
pressure compensated piston pump.
insure true tire tracking and maxi-
mize truck performance. Option: Service brakes automatically applied when accu-
mulator pressure drops below 1400 psi (9 600 kPa).
All suspensions are easily adaptable
to the payload weigh system Front Brakes — 39 inch (990 mm) single disc –
accessory. 3 calipers.
Front Strut: Rear Brakes — 20-1⁄8 inch (511 mm) dual disc –
Stroke: 12 inch (304 mm) 1 caliper/disc.
Rear Strut: Parking Brakes — Manual actuated by switch on
Stroke: 7-1/4 inch (184 mm) instrument panel.
Rear Axle Oscillation: ± 6.5°
Braking System meets the requirements of SAE/ISO
3450.
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STEERING SYSTEM SERVICE CAPACITIES

Full-time, closed center, load- U.S. Gallons Liter
sensing system operating two
Fuel 600 2271
double-acting cylinders, sup-
Hydraulic system 215 813
plied by accumulators that
Engine oil* 58 220
are replenished by a pres-
Wheel Motor 5/wheel (B23) 19
sure-compensated piston
Cooling system* 120 454
pump. Auxiliary steering sup-
plied by accumulators and
*Based on MTU/DDC 12 V 4000 engine.
meets SAE J1511/ISO 5010.
Minimum turning radius (SAE): 41 feet (12.5 m)

SUPERSTRUCTURE FRAME
Rugged one piece "I" beam construction featuring a Completely computer
closed bottom to provide cab-under-floor protection for aided designed utilizing
the operator and to protect critical components from special alloy steel,
road damage and mud damage. Top access to engine, double box section
piping and electrical wiring for easy maintenance construction. Center
access. Deck components located to optimize driver cross member incor-
visibility. porates wrap around
spherical axle box
nose cone connection.
Continuous frame rail
beams with deep section in critical
area along with ROPS supports for
rugged dependable service.

DUMP BODY CAB

Horizontal bolster deep vee design with flat floor and a The integral ROPS
45° dumping angle. Standard rock body incorporates (Rollover Protective
3⁄4 inch (19 mm) bottom plate with 3⁄8 inch (10 mm) Structure) cab accom-
sides and 1⁄2 inch (13 mm) front plate. Dump body modates two full size
heating available as an accessory. seats. Features
Struck (SAE) — 77 yd3 (59 m3) deluxe interior, tinted
Heaped (SAE 2:1) — 118 yd3 (90 m3) safety glass, curved
Optional bodies available based on material density and wind- shield for added
payload rating. Liner and tailgate accessories also available. field of view, tilt and
telescopic steering wheel, heater and defroster,
pressurized and filtered intake air for driver comfort.
ROPS meets SAE J1040 MAY94 criteria, and the
MT Series also features tailgate protection to pro-
TIRES
tect the operator in the event of a truck collision.
Rock, Deep Tread type tubeless The High Productivity Cab correctly maintained and
33.00 R 51 assembled provides a sound exposure Leq (equiva-
Rim size: 24.00 x 51 lent sound level) of less than 82dB(A) when tested
Option: 36.00 R 51 per ANSI/SAE J1166 MAY90 with doors and win-
Rim size: 26.00 x 51 dows closed, meeting both U.S. OSHA and MSHA
occupational noise criteria for operator weighted
sound exposure level.
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HYDRAULIC SYSTEM ELECTRICAL SYSTEM

Hoist: Manually-operat- 24 Volt system powered by six (6) twelve (12) volt
ed pilot system batteries (3 series pairs in parallel). Battery isolation
controlling a hoist switch standard.
valve, operating
Alternator: 24 Volt, 100 amp output
two double-act-
Lighting: 24 Volt
ing telescoping
Starter: 24 Volt
two-stage cylin-
ders.
Hydraulic fluid is supplied by a single section WEIGHTS
gear pump, delivering 120 gpm (454 l/minute).
MT 3300AC with 33R51 tires
Power up loaded 20 seconds
Power down 9 seconds AXLE EMPTY LOADED
Remote dump quick disconnects are stan- Front 131,026 lb 59 422 kg 183,967 lb 83 432 kg
dard. Rear 117,874 lb 53 458 kg 364,933 lb 165 502 kg
Filtration: High-pressure units with 6 micron TOTAL 248,900 lb 112 880 kg 548,900 lb 248 934 kg
(nominal) filtration and environmen- Weight based on standard truck configuration with 50% fuel
tally disposable elements. Hydraulic Nominal GVW is 548,900 lb (248 934 kg).
tank outlet contains a strainer with
100 mesh screening. MT 3300AC with 36R51 tires
Component Box:Hydraulic gauges and quick discon- AXLE EMPTY LOADED
nect test points are standard.
Hydraulic Tank: The 149 gallon (564 liter) tank is Front 134,237 lb 59 891 kg 186,011 lb 84 359 kg
pressurized to provide longer pump Rear 120,763 lb 54 757 kg 368,989 lb 167 342 kg
life. Total 255,000 lb 114 648 kg 555,000 lb 251 701 kg
Weight based on standard truck configuration with 50% fuel
Nominal GVW is 555,000 lb (251 701 kg).

BEAM FRONT AXLE

A drop-center beam axle features box section construc-
tion for long service life, reduced load transfer to the
frame during turns, improved stability and driver comfort.
Both front and rear axles incorporate a clevis and pin lat-
eral stabilizing link to ensure true tire tracking and maxi-
mize truck performance.

Outside Front
20' 6" (6.2 m)
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Standard and Optional Equipment

STANDARD INSTRUMENTATION Centralized terminal board locations Rear view mirrors (left & right)
GROUP Converter 24 Volt to 12 Volt, Reverse hoist interlock
25 amp capacity Rollover protective structure (ROPS)
Air cleaner restriction gauges Donaldson dry air cleaners Seat belts w/shoulder strap
Engine oil pressure gauge Four (4) halogen headlights (high/low beam) Service light group:
Engine start/stop switch Front wheel fenders and mud guards Axlebox
Engine tachometer Fuel tank sight gauge Hydraulic component box
Engine water temperature gauge Hinged dash panels Under hood
Fuel gauge Hydraulic component box gauges Skid resistant deck top
Hand brake control Hydraulic test ports Stairway light
Headlight/taillight switch Minimized wiring connections Windshield washer – electric
High/low beam indicator and switch Rock ejectors Windshield wiper w/intermittent operation
Hour meter Super bore tire inflation valves
Load brake switch ACCESSORIES
Park brake switch STANDARD EQUIPMENT
Speedometer w/odometer Body liners
Stairway light switch Access ladder Brake auto apply (1400 psi, 9 600 kPa)
Steering wheel tilt/telescopic Accumulators (brake system) Canopy extension
Turn indicators lights and lever Automatic auxiliary steering (accumulator) Central service group:
Voltmeter Auxiliary dumping connections Autolube reservoir fill
Warning indicator light and/or buzzer Back-up warning alarm Engine oil evacuation
Brake drag warning Cab air conditioning Engine oil fill
Check engine Clearance lights & turn signals Hydraulic oil tank fill
Electrical system fault Deck hand rails Hydraulic oil tank evacuation
High hydraulic temperature Dry disc brakes (hydraulic actuated) Radiator fill
Low blower pressure Dry break fueling Engine hotstart (cold weather)
Low brake pressure Dump body lock up cable Engine idle/shutdown
Low fuel level Engine service ladder (left & right side) Fire suppressant system
Low hydraulic oil level Fire suppressant bottle – 20 lb. (9.1 kg) Fuel heater (cold weather)
Low steering pressure High capacity radiator High efficiency body
Stop engine Horn – front Hubodometer
Windshield washer switch Keylock master switch Manual power supply
Windshield wiper switch Parking brake (DC powered pump/motor combination)
Radiator fan guard Supplies steering and brakes
STANDARD SERVICE GROUP Rear lights: Engine prelube
Two (2) Amber (dynamic retarding) Tailgate
Air cleaner rock shields Two (2) Red (service brakes) WEBASTO engine heater
Automatic lubrication (Lincoln) Two (2) White (back-up) Weigh system (TRIPS) w/ or w/o lights

Specifications subject to change without notice or obligation. The photographs and drawings in this brochure are for illustrative purposes only.
Some items shown may be optional at extra cost. MT 3300AC is protected by one or more U.S. patents, foreign patents or patents pending.

TEREX Unit Rig

P.O. Box 998 P.O. Box 3107 E-MAIL sales@terexmining.com
Sherman, TX 75091-0998 Tulsa, OK 74101-3107 WEB www.terexmining.com
www.terex.com
3501 S. FM HWY 1417 5400 S. 49th West Ave
Denison, TX 75020 Tulsa, OK 74107-8813
TEL 903 337 4100 TEL 918 446 5581
FAX 903 337 4140 FAX 918 445 5950

Form MT33AC/406e