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Crane chassis
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Model:
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6571-100, retrofit wheeled MAZ-73131.
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Type:
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Off-road 8×8.
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Chassis frame:
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Riveted-welded, consists of two curved spars Z – shaped profiles-il, in which the length is welded to two amps – top and bottom.
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Frame chassis:
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Welded, box-section design.
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Outriggers:
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4 supports, X-shaped swivel. Lifting and lowering of supports – Hydraulic individual. Lift cylinders are equipped with attachment bracket bearings.
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Engine:
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Diesel 12-cylinder D-12A-525A liquid cooling. Power of 386 kW (525 hp.) at 2000 r / min. Maximum torque of 2208 kN at 1100-1400 r / min. Fuel tank – 280 x 2 l.
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Transmission:
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Torque converter – single-stage, with the transition to mode coupling and locking the pump and the turbine wheel. Transmission – planetary, 3 forward, 1 – back. control – through the mechanism of hydraulic spool type. Transfer case – two-speed three-shaft gearbox with central differential.
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Bridges:
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Leading with the central gear wheel and two planetary re-villas, the first two bridges – managed.
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Suspension:
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Independent, torsion bar, double wishbones.
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Wheels and tires:
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Single tires 1500 x 600 x 635, with a tread Prokhorov conductivity, pressure 0.387 MPa, with a centralized paging.
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Steering:
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The first and second axes with power.
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Brakes:
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All round shoe with automatic compensation for wear shoes clearance, control – air-hydraulic, dual circuit. The parking brake -belt acting on the bridges, mechanical.
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Cab driver:
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Two (left and right), double, two-door, closed type. Raising and lowering the outside doors have glass in a special frame. The seats are arranged one after the other. Cabins are equipped with heaters, ventilation hatches. In front of the cab mounted panel with instrumentation.
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Electrical equipment:
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24 VDC, 4 batteries, lighting in accordance with GOST 8769-75 “Outside lighting.”
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Rotating platform
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| Frame: |
Welded, boxed-girder construction. Slewing diameter of 1900 mm, single-row roller with internal teeth, provides rotation in both directions for an unlimited angle. |
| Hydraulic system: |
Dual circuit with remote hydraulic servo. Powered from the system of pump station power module, located on nonslewing part. Hydraulic pumps, axial piston and gear. Hydraulic axial piston for mechanisms. |
| The power module
(Diesel – pump
module): |
Diesel engine D-144-32 air-cooled and the pump drive diesel heater, muffler, oil tank – 350 l, hydro and electrical equipment module rated power 36.8 kW (50 hp.)., Torque 195 Nm (19.9 kg-m) @ 1800 r / min. |
| Boom: |
Double-acting hydraulic cylinder with check control valve. |
| Cargo winch |
With the driving force of 44.83 kN, with a two-stage helical gearbox built into the drum, normally closed disc brake, driven by two-speed axial piston motor. |
| Turning mechanism: |
Axial-rotary motor, two-stage planetary gearbox and disc brakes normally closed. |
| Operator’s cab: |
Steel sheet with a broad overview, with heating, with sound and heat insulation, with instrumentation. |
| Safeties: |
Electronic UCP, height limiter lifting hook suspensions, pressure rollers rope winches stops coiling rope winches automatic
brake winches attachment bracket, safety valves and brake valves. |
| Counterweight: |
Weighing 1.5 tons |
| Telescopic boom: |
Two-piece, Hydroficated, arm length of 13.2 to 18 m |
| Additional boom equipment: |
Lattice jib 8.5 m, is mounted on the longitudinal axis of the boom.
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