NEW VEHICLE INFORMATION SERVICE FOR YOUR HIES ENGINE AEC Type
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AV691, 6-cylinder vertical, 4-stroke direct injection diesel. Bore. 5.12 in. (130 mm); stroke, 5.59 in. (142 mm): capacity, 690 Cu. in. (11,310 Cu. cm.). Output, up to 205 b.h.p. at
2,200 r.p.m.: torque, 573 lb.-ft, at 1200, r.p.m. Normal setting, 187 b.h.p. at 2,000 r.p.m.; torque, 544 lb.-ft. Alternative Engine: AEC Type AV760, capacity 761 cu. in. (12,473 cu. cm.); output up to 226 b.h.p.; torque 618 lb.-ft. at 1,500 r.p.m.
CLUTCH Hydraulically operated single"dry plate; area of friction surface, 268 sq. in. • GEARBOX Six forward speeds (with overdrive) and reverse; constant mesh except first and reverse which are sliding mesh; unit-mounted with engine. Ratios: 1st, 7.17;1, 2nd, 4-45:1, 3rd, 2-54:1; 4th, 1-53:1; 5th, 1:1; 6th (overdrive), 0.75:1; reverse, 7-49:1.
FRONT AXLES Forged '1' section beams with stub axles 24 in. dia. Hubs mounted on taper roller bearings.
REAR AXLES Two driving axles with fabricated casings. Overhead worm reduction drive units; inter-axle differential. Fully floating driving shafts. Hubs mounted on taper roller bearings. -Ratios: 5.8:1. 6.4;1 or 7.75:1.
STEERING Power assisted cam and roller. Ratio: 28-5:1 or 5 turns from lock to lock.
BRAKES Air pressure operated footbrake on all wheels. Single leading shoe cam expanded. Air-assisted mechanical handbrake to rear bogie. Brake drums 154 in. dia.; linings 4 in. thick x 5 in. wide front and 8 in. wide rear. Footbrake friction area, 1,544 sq. in.; handbrake friction area, 952 sq. in.
SUSPENSION Front: Semi elliptic leaf springs 3 in. wide. Telescopic double-acting hydraulic dampers on both axles. Rear: Semi elliptic leaf springs 34 in. wide. Both springs on each side are interconnected at shackles by balance beam.
FRAME Bolted construction. Channel section side and cross members. Maximum section, 121n. deep x 3 in. flange width x in. thick. A channel section flitch, ;!, in, thick is fitted inside frame between front and rear axles on 14 ft. 54 in. wheelbase models. Front bumper and twin front towing eyes.
FUEL SUPPLY 48-gallon tank. WHEELS AND TYRES 9.00-20, radial steel cord tyres on B6.5 three-piece discs, single front and twin rear. Spare wheel and tyre and, on 17 ft. 2 in. wheelbase model, an underframe carrier.
ELECTRICAL EQUIPMENT 24-volt insulated return lighting and starting. Alternator of 30 amp. maximum output, with transistorised control. Lead-acid batteries of 110 amp.-hr. capacity. Side lamps, headlamps, combined rear lamp units, twin horns, direction indicators.
INSTRUMENTS Speedometer with total distance recorder, oil pressure gauge, air pressure gauge, water temperature gauge, ammeter, indicator lights for generator and headlamps main beam.
ERGOMATIC CAB All steel construction; resiliently mounted to frame; arranged to tilt forward for access to engine. Deep curved one-piece windscreen of zone toughened glass; quarter lights front and rear; rear view windows. Low non-slip steps and wide doors, opening 90 7 kW fresh air heater/demister; air operated windscreen wipers; built-in washer jets; two-way adjustable driver's seat.