Engine YaMZ-238 ND4-1
Eight-cylinder V-shaped (camber angle 90°) four-stroke liquid-cooled diesel engine with turbocharging and air-to-air charge air cooling YaMZ-238 ND4-1 Yaroslavl Motor Plant.
Technical characteristics of YaMZ-238 ND4-1 | |
| Cylinder diameter and piston stroke, mm | 130 x 140 |
| engine's type | 4 stroke |
| Cylinder arrangement | V8 |
| Engine displacement, l | 14,86 |
| Fuel injection | Direct |
| Cooling | Liquid |
| Power, kW (hp) | 173 (235) |
| Crankshaft rotation speed, min−1 | 1700 |
| Maximum torque, N•m (kgf•m) | 1108 (113) |
| Engine speed at max. torque, min−1 | 1100-1400 |
| Minimum specific fuel consumption, g/kW•h (G/hp•h) | 220(162) |
| Overall dimensions, mm (length x width x height) | 1345 x 1045 x 1070 |
| Weight, kg | 1135 |
| Generator, model | 5702.3701-30 |
| injection pump | 805.1111007-40 |
Tractor engine T-1501
The tractor can be equipped with 2 different engines: YaMZ-238ND4-1 - Yaroslavl Motor Plant and QSC8.3-C245 produced by Cummins.
| YaMZ-238ND4-1 | QSC8.3-C245 | |
| Number of cylinders | 8 | 6 |
| Cylinder arrangement | V-shaped | Row |
| Turbocharging | No | Yes |
| Cylinder diameter | 130 mm | 114 mm |
| Piston stroke | 140 mm | 135 mm |
| Engine capacity | 14.86 l | 8.3 l |
| Engine power | 238 hp (175 kW) at 1900 rpm | 245 hp (180 kW) at 2000 rpm |
| Torque (maximum) | 1108 Nm (at 1150 ... 1350 rpm) | 1085 Nm (at 1300 ... 1600 rpm) |
Engine QSC8.3-C245 "Cummins"
Six-cylinder four-stroke liquid-cooled diesel engine with turbocharging and air-to-air charge air cooling QSC8.3-245. Engine QSC8.3-C245 “Cummins”
Technical characteristics of QSC8.3-C245 "Cummins" | |
| Engine displacement | 8.3 l |
| Bore and stroke | 114 mm x 135 mm |
| Maximum torque | 1085 Nm at 1300…1600 rpm |
| Operating power | 180 kW (245 hp) at 2000 rpm |
The engine is equipped with the “Bosch” + “Quantum” system, which contains electronic fuel injection, diagnostics, engine protection and engine control systems. Oil purification system with full flow filter. Liquid-oil heat exchanger for cooling engine oil.
Engine of the bulldozer Chetra T-15
Eight-cylinder V-shaped (camber angle 90°) four-stroke diesel engine without turbocharging, liquid cooling YaMZ-238ND4-1 from the Yaroslavl Motor Plant.
- Cylinder diameter and piston stroke - 130 mm x 140 mm;
- Engine displacement - 14.86 l;
- Operating power - 175 kW (238 hp) at 1900 rpm;
- Maximum torque - no less than 1108 Nm at 1150...1350 rpm.
Six-cylinder four-stroke diesel engine with turbocharging and air-to-air charge air cooling, liquid cooling QSC8.3-C245.
- The cylinder arrangement is in-line;
- Cylinder diameter and piston stroke - 114 mm x 135 mm;
- Engine displacement - 8.3 l;
- Operating power - 180 kW (245 hp) at 2000 rpm;
- Maximum torque - 1085 Nm at 1300...1600 rpm.
Engine with the Quantum system, containing electronic fuel injection, diagnostics, engine protection and engine management systems.
Oil purification system with full flow filter. Liquid-oil heat exchanger for cooling engine oil.
Transmission
The planetary gearbox of the bulldozer T-15.01M, CHETRA T-15M, switchable under load, with clutches with a diameter of 415 mm, operating in oil and having a high torque transmission capacity, provides three forward gears and three reverse gears. The modulating gearbox system allows you to smoothly change gears under load. Changing gears and driving directions is carried out with one lever. The gearbox is combined with a matching gearbox and main gear into a single power unit, which is installed in the bore of the rear axle.
Three-element, single-stage torque converter with an active diameter of 410 mm, maximum transformation ratio Ko = 2.9 with a pump drive gearbox, connected to the gearbox with a splined clutch, installed on the front wall of the rear axle. The torque converter is connected to an elastic coupling mounted on the engine by a cardan transmission.
Gearbox characteristics | ||
| Broadcast | Forward travel | Reverse |
| 1 | 3.9 | 5.1 |
| 2 | 6.9 | 9.0 |
| 3 | 11.1 | 14.2 |
Bulldozer gearbox
| Broadcast | Forward travel | Reverse |
| 1 | 3,9 | 6.2 |
| 2 | 7,1 | 9.1 |
| 3 | 11.1 | 14,7 |
Planetary power shift gearbox with 415 mm diameter oil-fed clutches with high torque transmission capability, providing three forward and three reverse gears. The modulating system allows you to smoothly change speeds under load. Changing gears and driving directions is carried out with one lever. Structurally, it is combined with a matching gearbox and main gear into a single power unit installed in the bore of the rear axle. Three-element, single-stage torque converter with an active diameter of 410 mm, maximum transformation ratio Ko = 2.9 with a pump drive gearbox, connected to the gearbox with a splined clutch, installed on the front wall of the rear axle. The torque converter is connected to an elastic coupling mounted on the engine by a cardan transmission.
Final drive
The final drive is two-stage, the 1st stage is external gears, the 2nd stage is planetary according to the “to +1” scheme (with a stopped ring gear). To facilitate replacement in the field, the drive sprocket is made of five sectors that are secured with bolts.
Chassis
Suspension:
three-point semi-rigid with a remote swing axis of the bogies provides high traction and grip properties, reduced shock loads on the chassis system, and improved working conditions. Support, support rollers and idler wheels with one-time lubrication for the entire service life with self-clamping “double cone” seals.
- Number of road wheels (on each side) - 7;
- Number of support rollers (on each side) - 2;
- The tension wheel is micro-sprung.
Caterpillars:
prefabricated with one lug and a seal to hold liquid lubricant in the hinge. Track tension is easily adjusted with a grease gun.
- Link pitch - 215.9 mm;
- Number of shoes (on each side) - 40;
- The height of the lugs is 70 mm;
- Shoe width - 560 mm;
- Support surface area - 3.26 m2;
- Ground pressure - 0.87 kgf/cm2.
Hydraulic system
Hydraulic system characteristics:
- gear pump S1A6155, capacity 235 l/min at 1750 engine rpm
- four-section valve, consisting of one valve and three spool sections
- maximum response pressure of the safety valve 20 MPa (200 kgf/cm²)
- hydraulic tank capacity (welded tank, adapted for mechanical cleaning of internal surfaces) - 130 l
| Spool sections | Distributor spool position | Number of cylinders | Cylinder diameter x Stroke, mm x mm |
| Blade lift | lift, neutral (hold), lower, float | 2 | 110 x 1200 |
| Blade misalignment | right, neutral, left | 1 | 160 x 310 |
| Raising the ripper | lift, neutral, lower | 2 | 160 x 530 |
Gearbox of the T-1501 tractor
| Gearbox type | Planetary |
| Coupling diameter | 415 mm |
| Checkpoint operating environment | oil |
| Transformer | three-element, single stage |
| Transformation ratio | 2,9 |
Gear ratios
| Broadcast | Forward travel | Reverse |
| 1 | 3,9 | 6,2 |
| 2 | 7,1 | 9,1 |
| 3 | 11,1 | 14,7 |
Chassis system
The suspension of the CHETRA T-15.01M bulldozer is three-point, semi-rigid with a remote bogie swing axis. Such a suspension provides high traction and grip properties, reduces shock loads on the chassis system, and improves working conditions. Support, support rollers and idler wheels with one-time lubrication and self-clamping double cone seals.
| Number of road wheels | 8 |
| Number of support rollers | 2 |
Chassis of the T-15.01 tractor
Suspension
| Type | three-point, semi-rigid |
| Number of support rollers | 2 (each side) |
| Number of road wheels | 7 (each side) |
| Idler wheel | with microsprung |
The suspension provides high traction properties. Impact loads on the chassis are minimal. Idler wheels, support rollers, and suspension rollers are lubricated for a lifetime.
Caterpillars
| Surface area | 3.26 m2 |
| Ground pressure | 0.87 kgf/cm2 |
| Link pitch | 215.9 mm |
| Number of shoes | 40 (each side) |
| Shoe width | 560 mm |
| Height of lugs | 70 mm |
Caterpillar
The tracks of the bulldozer T-1501M, CHETRA T-15.01M are prefabricated with one grouser and a seal to hold liquid lubricant in the hinge. Track tension is easily adjusted with a grease gun.
Characteristics of the T-15.01M caterpillar | |
| Link pitch, mm | 215,9 |
| Number of shoes | 44 |
| Height of lugs, mm | 70 |
| Shoe width, mm | 810 |
| Support surface area, m² | 5,44 |
| Ground pressure, kgf/cm² | 0,56 |
Ripping equipment
Depending on the operation of the CHETRA T-15M, T-15.01M bulldozer, one, two or three teeth can be mounted on the ripper, which allows for high productivity.
| Ripper type | Non-adjustable, multi-tooth |
| Number of teeth | 1 / 3 |
| Weight, kg | 2268 / 2475 |
| Max. lifting height, mm | 738 / 555 |
| Max. depth, mm | 830 / 770 |
| Max. pullout force, T | 21,0 / 21,2 |
| Max. penetration force, T | 9,6 / 9,6 |
Ripping equipment of the bulldozer Chetra T-15
Depending on the operating conditions of the ripper, one, two or three teeth can be mounted, which allows for high productivity.
| Ripper type | Number of teeth | Weight, kg | Max. lifting height, mm | Max. depth, mm | Max. pullout force, T | Max. penetration force, T |
| Non-adjustable, multi-tooth | 3 | 2475 | 555* | 700* | 21,2 | 9,6 |
| Non-adjustable, single-prong | 1 | 2268 | 738* | 830* | 21,0 | 9,6 |
* - with submerged lugs.
Bulldozer equipment
The large capacity of the hemispherical blade of the CHETRA T-15.01 bulldozer ensures increased productivity, and the use of diagonal traction when transmitting lateral forces from the blade to the left spar of the bulldozer frame ensures maximum proximity of the blade to the hood of the bulldozer and maximum pressure force on the blade blade.
| Blade | SU blade |
| Blade length x height, mm | 4100 x 1524 |
| Dump capacity, m² | 9,2 |
| Lifting height, mm | 1250 |
| Depth, mm | 475 |
| Max. misalignment, hail | ±14° |
| Blade weight, kg | 3610 |
Bulldozer equipment T-15.01
| SU blade | U blade | Straight blade | |
| Blade length | 3820 mm | 4180 mm | 4050 mm |
| Blade height | 1520 mm | 1650 mm | 1490 mm |
| Blade volume | 6.8 m3 | 8.5 m3 | 5.8 m3 |
| Lifting height above ground | 1150 mm | 1150 mm | 1150 mm |
| Deepening | 555 mm | 555 mm | 555 mm |
| Tilt adjustment | +/- 10 degrees | +/- 10 degrees | +/- 10 degrees |
| Weight | 2805 kg | 3345 kg | 2980 kg |
dimensions
The dimensions of the bulldozer CHETRA T-15M, T-15.01M are presented by the following characteristics:
Dimensions CHETRA T-15.01M | |
| Length, mm | 7624 |
| Width with blade, mm | 4100 |
| Height, mm | 3760 |
Overall dimensions of CHETRA T-15.01M.
Modifications and equipment
CHETRA T-15M, T-15.01M bulldozers are supplied in the following modifications and configurations:
| Modification | Equipment | Engine power, kW/hp | Weight, kg |
| T-15.01YAMB-1 | YaMZ-238ND4-1, hemispherical blade, low pressure. On the ground | 175/238 | 28209 |
| T-15.01YAMBR-1 | YaMZ-238ND4-1, hemispherical blade, low pressure. On the ground, ripper 1 tooth | 175/238 | 30500 |
| T-15.01YAMBR-1-01 | YaMZ-238ND4-1, hemispherical blade, low pressure. On the ground, ripper 3 teeth | 175/238 | 30500 |
Standard Equipment
The standard equipment of the CHETRA T-15.01M bulldozer includes:
- Adjustable operator's seat with soft cushion
- Air purifier
- Cab heating fan
- Decelerator
- Sound signal
- Front tow hook
- Motor protection
- Hydraulic device for track tensioner
- Lighting system
- Multi-layer protection
- Muffler
- Parking brake
- Power train protection
- Replaceable ring gear segments
- ROPS/FOPS protective structure
- Safety belt
- External power socket 24 V
- 24 V power socket
- Alternator 75 A
- Rechargeable batteries (2), 12 V, 190 A*h (on-board voltage 24 V)
- Cigarette lighter
- Starter
- Electric hour meter
On the instrument panel:
- tachometer
- coolant temperature gauge
- engine oil pressure gauge
- engine oil temperature gauge
- onboard voltage indicator
- fuel level indicator
- transmission oil temperature gauge
Indicators on the instrument panel:
- emergency engine oil pressure
- engine coolant overheating
- lack of battery charge
- air filter clogged
- clogged filter in the hydraulic tank
- overheating of oil in the hydraulic tank
- clogging of the transmission filter
- minimum transmission oil temperature
- overheating of transmission oil
- clogged engine oil filter
- emergency transmission oil pressure
Equipment for working in arctic conditions
To operate in arctic climatic conditions, the CHETRA T-15.01M bulldozer is additionally equipped with:
- Pre-starting liquid heater PZD 30L, HYDRONIC M-II, HYDRONIC 35
| Heating capacity, kcal/hour | 30 000 |
| Fuel consumption, kg/hour | 4,95 |
- Independent cabin air heater AIRTRONIK-2D
| Heating capacity, W | 2 200 |
| Fuel consumption, kg/hour | 0,28 |
- Cabin heater powered by engine coolant
- Insulating cover
- Engine radiator shutters
See also:
- Characteristics of CHETRA T-15.01
- Characteristics of CHETRA T-15.01L
- Sale of bulldozers CHETRA T-15
- Price of CHETRA T-15 bulldozers
- Repair of CHETRA T-15 bulldozers
- Re-equipment of CHETRA T-15 bulldozers
- Spare parts catalog CHETRA T-15
