VOLVO ARTICULATED HAULER A40D 6X6
• Engine output SAE J1349:
Net 309 kW (414 hp)
Gross 313 kW (420 hp)
• Body volume, heaped:
22,5 m3 (29.4 yd3)
• Load capacity:
37 t (41 sh tn)
• Volvo cab designed for high
operator visibility, ergonomics
and comfort.
• Reduced maintenance time
with no daily or weekly grease
points.
• Electronic Operator's
Communication System
• Volvo high performance –
low emission electronically
controlled direct injected,
turbocharged, intercooled
diesel engine.
• Volvo Engine Brake, VEB.
• Fully automatic planetary
transmission, electronically
controlled.
• Hydraulic retarder integral in
transmission.
• Dropbox with high/low
function and longitudinal
differential lock.
• Automatic upshift from low
to high range in dropbox.
• Wet disc brakes, fully enclosed,
forced oil-cooled multiple discs
with external cooling.
• 100% lock-up differentials.
One longitudinal and three
transverse differential locks.
• Front axle with three-point
suspension.
• Volvo terrain bogie, individually
oscillating axles and high ground
clearance.
• Volvo Load & Dump Brake.
ENGINE
Volvo inline 6-cylinder, electronically controlled directinjected,
turbocharged, intercooled 4-cycle low emission
diesel engine with overhead camshaft and valves and wet
replaceable cylinder liners.
Meets Europe (EU) step 2 emission regulations.
Fan: Hydrostatically driven, thermostatically controlled
variable speed radiator fan consuming power only when
needed.
Engine brake: VEB (Volvo Engine Brake) includes
compression and exhaust brake.
| Make. | Volvo |
| Model | D12C ACE2 |
| Max power at | 30 r/s (1800 r/min) |
| SAE J1349 Gross | 313 kW (420 hp) |
| Flywheel power at | 30 r/s (1800 r/min) |
| SAE J1349 Net | 309 kW (414 hp) |
| Max torque at | 20 r/s (1200 r/min) |
| SAE J1349 Gross* | 2100 Nm (1549 lbf ft) |
| SAE J1349 Net, DIN 6271** | 2056 Nm (1517 lbf ft) |
| Displacement total | 12 l (732 in3) |
*) The D12C engine is emission certified as a Family Engine with the following output data:
| Rated power at | 31,7 r/s (1900 rpm) |
| SAE J1349 Gross | 280 kW (376 hp) |
| Max torque at | 20 r/s (1200 r/min) |
| SAE J1349 Gross | 2100 Nm (1549 lbf ft) |
**) with fan at normal speed. With fan operating at full speed, the flywheel power is 301 kW (404 hp) and maximum torque is 2010 Nm (1482 lbf ft) which corresponds to DIN 70020.
ELECTRICAL SYSTEM
| Voltage | 24 V |
| Battery capacity | 2x170 Ah |
| Alternator | 1,54 kW (55 A) |
| Starter motor | 7,2 kW (9,6 hp) |
SERVICE CAPACITIES
| Fuel tank | 480 l (126.8 US gal) |
| Crankcase | 50 l (13.2 US gal) |
| Cooling system | 117 l (30.9 US gal) |
| Transmission total | 48,5 l (12.7 US gal) |
| Drop box | 10,5 l (2.6 US gal) |
| Per axle | 29 (7.7 US gal) |
| Hydraulic tank | 250 l (66.1 US gal) |
DRIVETRAIN
Volvo components, specifically designed for hauler
applications.
Torque converter: Single stage with free wheeling stator
and automatic lock-up in all ranges.
Transmission: Volvo design. Electronically controlled, fully
automatic planetary transmission with 6 gears forward and 2
in reverse.
Dropbox: Volvo design with high and low function, power
take-off and differential with 100% lock-up function.
Automatic upshift low range to high range in 6th gear.
Separate dropbox oil cooling.
Axles: Volvo design. All axles have transversal differential
locks with 100% lock-up and fully floating axle shafts with
planetary type hub reductions.
Differential locks: One longitudinal and three transverse.
All with 100% lock-up function, operator selectable on the
move.
Configuration: 6x4 or 6x6 drive, operator selectable on the
move.
| Torque converter | 1,95:1 |
| Transmission | Volvo PT 1860 |
| Dropbox | Volvo FL 862 |
| Axles. | Volvo AHW 71 |
| Speeds | |
| forward | |
| 1 | 6 km/h (4 mile/h) |
| 2 | 9 km/h (6 mile/h) |
| 3 | 16 km/h (10 mile/h) |
| 4 | 24 km/h (15 mile/h) |
| 5 | 31 km/h (19 mile/h) |
| 6 | 41 km/h (26 mile/h) |
| Automatic upshift to
6th gear, High range |
55 km/h (34 mile/h) |
| High gear forward | |
| 1 | 9 km/h (6 mile/h) |
| 2 | 13 km/h (8 mile/h) |
| 3 | 23 km/h (14 mile/h) |
| 4 | 33 km/h (21 mile/h) |
| 5 | 42 km/h (27 mile/h) |
| 6 | 55 km/h (35 mile/h) |
| Low gear reverse | |
| 1 | 6 km/h (3 mile/h) |
| 2 | 10 km/h (6 mile/h) |
| High gear reverse | |
| 1 | 8 km/h (5 mile/h) |
| 2 | 14km/h (9 mile/h) |
SUSPENSION
Volvo's unique maintenance free 3-point suspension system. The axles are suspended at three points, which results in independent movement needed in rough terrain. Front axle: One rubber spring with bottoming absorption on each side. Stabilizer. Three shock absorbers on each side. Bogie: Volvo's unique terrain bogie, which permits individual oscillation between the axles. High axle displacement keeps the body level, retaining the load.
BRAKE SYSTEM
Fully hydraulic brakes with enclosed, forced oil-cooled multiple discs on all axles. Two circuits. Separate brake cooling for each axle. Complies with ISO 3450 and SAE J1473 at total machine weight. Service brakes: Wet multiple disc brakes on all wheels. Circuit division: One for front axle and one for bogie axles. Parking brake: Spring-applied, air-released disc brake on the propeller shaft, designed to hold a loaded machine on a grade up to 18%. When the parking brake is applied, the longitudinal differential is locked. Compressor: Gear-driven by engine. Retarder: Hydraulic, infinitely variable, integral with transmission. Total retarding capability includes transmission retarder and VEB, see graph. Volvo Engine Brake: Standard. Operator selectable application together with service brakes or when accelerator pedal is released. Always engaged together with retarder. Total retarding capability including transmission retarder and engine brake, VEB, see graph on page 4.
HYDRAULIC SYSTEM
Load-sensing variable displacement piston pumps that consume power only when needed. Pumps: 7 engine driven pumps mounted on flywheel power take-off. One ground-dependent piston pump for supplementary steering mounted on the dropbox. Filtration: Through two glass fiber filters with magnetic cores.
| Capacity per pump:
engine-driven |
143 l/min (37.8 US gpm) |
| ground-driven | 202 l/min (53.4 US gpm) |
| Working pressure | 25 MPa (3628 psi) |
CAB
Volvo cab, designed for high operator visibilty, ergonomics and comfort. Wide threshold-free door opening and ergonomic instep. Isolation rubber pads to reduce vibrations. Tilt/ telescopic steering wheel. Overhead console for radio and storage. Dash-mounted Operator's Communication System. Storage bins. Standard: ROPS/FOPS tested and approved. (ISO 3471, SAE J1040) /(ISO 3449, SAE J231) standards. Heater and defroster: Filtered fresh air, four speed fan and pressurized cab to maintain a clean operating environment. Multi-level air outlets and separate defroster vents for all windows. Operator's seat: Adjustable air supension operator´s seat with flameproof upholstery. Retractable seat belt. Trainer seat: Standard, with seat belt and back rest.
| Number of exits | 2 |
| Internal sound level, ISO 6394 | 72 dB (A) |
| and at max. speed | 76 dB (A) |
STEERING SYSTEM
Hydro-mechanical self-compensating articulated steering for safe and accurate high speed hauling. Fast acting, low effort steering with 3,4 lock-to-lock turns for low speed manuverability. Cylinders: Two double-acting steering cylinders. Supplementary steering: Complies with ISO 5010 at total machine weight. Steering angle: ± 45°
BODY
Load and dump brake: With the engine running, the service brakes on bogie axles are applied and transmission shifted to neutral. Body: Hardened and tempered steel body with high impact strength. Cylinders: Two single stage, double-acting.
| Tipping angle | 70° |
| Tipping time with load | 12 s |
| Lowering time | 10 s |
| Body, plate thickness
Front |
8 mm (0.31 in) |
| Sides | 12 mm (0.47 in) |
| Bottom | 14 mm (0.55 in) |
| Yield strength | 1000 N/mm2 (145000 psi) |
| Tensile strength | 1250 N/mm2 (181000 psi) |
| Hardness min | 400 HB |
WEIGHTS
Operating weight includes all fluids and operator. Standard machine.
| Operating weight with 23.5R25 tires:
Front |
16300 kg (33935 lb) |
| Rear | 14970 kg (33003 lb) |
| Total | 31270 kg (68938 lb) |
| Payload | 37000 kg (81570 lb) |
| Total weight
Front |
19170 kg (42262 lb) |
| Rear | 49100 kg (108245 lb) |
| Total | 68270 kg (150507 lb) |
A40D with tires 875/65 R 29, add 300 kg (660 lb) per axle.
GROUND PRESSURE
At 15% sinkage of unloaded radius and specified weights.
| Unloaded
Front |
115 kPa (16.7 psi) | 100 kPa (14.5 psi) |
| Rear | 53 kPa (7.7 psi) | 47 kPa (6.8 psi) |
| Loaded
Front |
135 kPa (19.6 psi) | 118 kPa (17.1 psi) |
| Rear | 172 kPa (24.9 psi) | 150 kPa (21.7 psi) |
INSTRUCTIONS
Diagonal lines represent total resistance (grade % plus rolling resistance %).
Charts based on 0% rolling resistance, standard tires and gearing, unless otherwise stated.
In the retardation chart the diagonal lines represent the "total resistance" as well, which is the grade in % minus the rolling
resistance in %.
A. Find the diagonal line with the appropriate total resistance on the right-hand edge of the chart.
B. Follow the diagonal line downward until it intersects the actual machine weight line, NMW or GMW.
C. Draw a new line horizontally to the left from the point of intersection until the new line intersects the rimpull or retardation
curve.
D. Read down for vehicle speed.
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