Chetra T20

Machinery & Industrial Group N.V.

Dozers

Module construction of all assembly units - easy maintenance.

Pipelayers

Improved stability and high safety.

Complex Machines for Local Repair of Oil Pipelines

Complex of machines for pipe lines overhaul.

Wheeled Industrial Machines

Bulldozers for different kinds of construction work.

Special Puprose Machines

Special purpose machinery of up to 590 hp to be used under heavy duty conditions.

Municipal Machinery

Municipal machinery - to clean roads and footways.

По-русски

GEARBOX

Gear	Forward, km/h	Reverse km/h
1	3,8	5,0
2	6,8	8,8
3	10,9	14,0

A planetary-type gearbox with oil operating, high capacity torque transmitting clutches 415 mm in diameter provides three forward gears and three reverse ones with gear shifting under load. The modulating system allows changing gears smoothly under load. Gear and travel direction change is performed by one lever. As per design the gearbox is connected with matching reducing gear and main drive forming a single power train unit mounted on rear axle bore. A three-element one-stage torque converter with efficient diameter of 410 mm, maximum transformation ratio Ко = 2.9 with pumps drive reduction gear is connected with the gearbox by means of spline coupling and mounted on the front wall of the rear axle. The torque converter is connected with the engine-mounted elastic clutch through drive line.

FINAL DRIVE

Final drive is of two-stages, the 1-st one having external gearing pinions and the second one of planetary “k+1” type (with the stopped crown gear). The sprocket has a 5-segment design, with the segments being bolt-on for easy replacement in field conditions.

UNDERCARRIAGE

Suspension: A three-point semi-rigid suspension with displaced oscillating axle of bogies provides higher traction characteristics, reduction of impact loads on undercarriage, improvement of working conditions. Track rollers, support rollers and idlers feature a life-time lubrication and self-adjusting “duo-cone” seal packages.
Number of track rollers (each side) — 7.
Number of support rollers (each side) — 2.
Idler—microcushioned

Track chains: Assembled with single-grouser track shoes and a seal package for retaining a fluid lubricant in the hinge. Track tension is easily adjusted with grease gun.
Link pitch—228.6 mm
Number of shoes (each side) — 40
Grouser height—80 mm
Shoe width—560 mm
Ground contact area—3.44m²

RIPPER EQUIPMENT

Depending on the ripper working conditions, one, two or three shanks may be mounted. Combined with hydraulically variable ripping angle it will provide high productivity.

Ripper type	Number of shanks	Weight kg	Lift above ground, max, mm	Digging depth, max, mm	Breakout force, max, T	Penetration force, max,T
Single-shank	1	2492	600*	1130*	22,5	15
	3	3610	402*	780*	26,5	11,8

HYDRAULIC SYSTEM

Remote-cylinder hydraulic system:

Two-section NSh100—50 gear pump of 235 L/min capacity at 1,750 rpm
Five-section control valve consisting of one valve section and four spool sections
Maximum relief valve setting —20 MPa (200 kgf/cm²)
Hydraulic tank capacity (welded tank suitable for mechanical treatment of inner surfaces)—130 L

Spool Sections	Positions of divider spools	Number of cylinders	Cylinders bore, mm
Blade lifting	Lifting, neutral (holding), lowering, float	2	125×1222
Blade tilt	To the right, neutral, to the left	1	160×310
Ripper lifting	Lifting, neutral, lowering	2	160×415
Change for the ripper cutting	Stepless regulation of the cutting angle	2	160×415

DOZER EQUIPMENT

Large capacity of U-blade provides increased productivity, application of diagonal tie-rod for transferring blade side forces to frame left side rail providing maximum blade approaching to the tractor front part and maximum force on blade knife.

Blade	Blade length × height, В × H, mm×mm	Blade capacity, m²	Lifting over the ground,	Blade deepening, mm	Maxnlt adjustment degree	Weight kg
U-blade	4225×1750	11.6	1250*	590*	±10°	4404
SU-blade	3940×1700	10	1250*	590*	±10°	4174

* — with shipped grousers

WEIGHT

Tractor −28 000 kg. Total weight (standard equipment, full fuel tank, SU-blade, three-shank ripper, operator) −36 000 kg

Model
Chetra T20
Engine
QSM11C-330 V6 Cummins	YaMZ-238B–21, V8, 4-stroke
Engine power,kW (h.p.)
215 (292)	210 (286)
Operating weight, kg
36 000	36 000
Ground pressure, kgf/cm²
1.02	1.05
Dozer equipment (PDF, 1.6Mb)
TŰV Certificate (PDF, 0.2Mb)