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CATERPILLAR - CRAWLER DOZERS



CATERPILLAR D7R2



TECHNICAL DATA AND PHOTOS



Manufacturer: Caterpillar Inc.
Type: crawler dozer
Model: D7R2


ENGINE:
Model: Cat 3176C
Type: in-line, 4-stroke-cycle diesel
Aspiration: turbocharger
Number of cylinders: 6
Gross power: 192 kW (258 hp) at 2100 rpm
Flywheel power: 179 kW (240 hp) at 2100 rpm
Net power - Caterpillar: 179 kW (240 hp) at 2100 rpm
Net power - ISO 9249: 179 kW (240 hp) at 2100 rpm
Net power - SAE J1349: 177 kW (238 hp) at 2100 rpm
Net power - EU 80/1269: 179 kW (240 hp) at 2100 rpm
Net power - DIN 70020: 248 PS at 2100 rpm
Bore 125 mm (4.9 in)
Stroke 140 mm (5.5 in)
Displacement 10.3 liters (629 in3)


ELECTRICAL SYSTEM:
Alternator: 95 A brushless
Batteries: 2 maintenance free 12V (24V system)
Converter: 12 V, 10 A with 2 power outlets



FLUID CAPACITIES:
Engine crankcase: 31 liters (8.2 gal)
Cooling system: 77.4 liters (20.4 gal)
Power train: 178 liters (47 gal)
Final drives (each): 13 liters (3.4 gal)
Roller frames (each): 24.6 liters (6.5 gal)
Attachment hydraulic system - tank only: 54 liters (14.3 gal)
Pivot shaft compartment: 1.9 liters (0.5 gal)
Fuel tank: 479 liters (126.5 gal)


OPERATING WEIGHT:
Operating weight includes power shift arrangement, lubricants, coolant, full fuel tank, hydraulic controls, blade tilt cylinder, ROPS canopy, multi shank ripper (one shank), 560 mm (22") shoes for standard and operator.

Total operating weight with S blade: 27 277 kg (60,136 lb)
Total operating weight with SU blade: 27 413 kg (60,436 lb)
Total operating weight with U blade: 27 731 kg (61,136 lb)
Total operating weight with A blade: 27 323 kg (60,236 lb)


SHIPPING WEIGHT:
Includes lubricants, coolant, cab, hydraulic controls, Standard Track and 10% fuel.
Shipping weight: 20 630 kg (45,479 lb)


HYDRAULIC SYSTEM:
Pump capacity: 7000 kPa (1,015 psi) Pump output (differential steering): 295 liters/min (77.9 gal/min) Lift cylinder flow 180 liters/min (47.6 gal/min) Tilt cylinder flow 80 liters/min (21.1 gal/min) Ripper cylinder flow 180 liters/min (47.6 gal/min) DIMENSIONS:
Width of basic tractor without trunnions (standard shoe width): 2540 mm (8'4")
Width of basic tractor over trunnions: 2869 mm (9'5")
Machine height from tip of grouser:
Height - stack: 3353 mm (11'0")
Height - OROPS: 3372 mm (11'1")
Height - EROPS: 3359 mm (11'2")
Height - from ground face of shoe: 563 mm (22.2")
Overall length of basic tractor (with drawbar): 4736 mm (15'6")
Ground clearance: 416 mm (16.4")

LENGTH with the following attachments add to basic tractor length:
Length of basic tractor (with drawbar): 4736 mm (15'6")
Ripper (with tip at ground line): 1196 mm (3'11.1")
Ripper (with tip fully raised): 992 mm (3'3.1")
Winch: 77 mm (3")
S blade: 1081 mm (3'6.6")
SU blade: 1301 mm (4'3")
U blade: 1541 mm (5'.7")
A blade: 1301 mm (4'6.4")


UNDERCARRIAGE:
Track gauge: 1981 mm (78")
Standard shoes - width: 560 mm (22")
Length of track on ground: 2878 mm (114")
Ground contact area (std. shoe): 3.22 m2 5016 in2
Ground pressure: 0.766 kg/cm2 (10.9 psi)
Number of track rollers per side: 7
Number of shoes per side: 40
Ground clearance: 416 mm (16.4")


MAXIMUM SPEED:
Forward: 10.54 km/h (6.55 mph)
Reverse: 13.58 km/h (8.44 mph)


BLADES:

Blade S:
Capacity: 5.16 m3 (6.75 yd3)
Width: 3904 mm (12.81 ft)

Blade SU:
Capacity: 6.86 m3 (8.98 yd3)
Width: 3693 mm (12.12 ft)

Blade U:
Capacity: 8.34 m3 (10.91 yd3)
Width: 3988 mm (13.08 ft)

Blade A:
Capacity: 3.89 m3 (5.08 yd3)
Width: 4503 mm (14.77 ft)

WINCH:
Model: PA110VS Variable Speed
Winch and bracket length: 1461 mm (57.5 in)
Winch case width: 1171 mm (46.1 in)
Increased tractor length - 742 mm (29.2 in)
Flange diameter: 610 mm (24 in)
Drum width: 337 mm (13.3 in)
Drum diameter: 318 mm (12.5 in)
Drum capacity - 24 mm (1 in): 127.41 m (418 ft)
Drum capacity - 29 mm (1.13 in): 84.12 m (276 ft)
Drum Capacity - 32 mm (1.25 in): 58.83 m (193 ft)
Ferrule size (O.D. x length): 60 mm x 65 mm 2.38 (in x 2.56 in)
Oil capacity: 15.1 liters (4 gal)
Weight: 1894 kg (4,176 lb)


MULTI-SHANK RIPPER:
Type: adjustable parallelogram
Maximum penetration force: 8664 kg (19,100 lb)
Maximum pryout force: 17 138 kg (38,513 lb)
Beam width: 2210 mm (87 in)
Maximum penetration: 748 mm (29.4 in)
Maximum clearance raised (shank tip): 757 mm (29.8 in)
Beam cross section: 343 x 279 mm (13.5 x 11 in)
Number of pockets: 3
Weight - with one shank: 3307 kg (7,431 lb)
Weight - each additional shank: 150 kg (330 lb)


CAT D7R2 dozer at work
The CAT D7R2 dozer at work.
Location: Rockaway Beach, New York, Queens, USA.
Taken on: 6 May 2010
Size of the photo: 2079 x 1328, 1,40 MB
Author of the photo: Ken Wells
Source of the photo: USACE NY
License: (CC BY 2.0)
Changes made: The image was extracted from the original photo.
The original photo is under the photo.


The dozer at work
The dozer at work.
The dozer moves sand as it is pumped onto Rockaway Beach as part of a renourishment project there to repair damage to the beach caused by winter storms.
Location: Rockaway Beach, New York, Queens, USA.
Taken on: 6 May 2010
Size of the photo: 3872 x 2592, 1,22 MB
Camera model: Nikon D80
Author of the photo: Ken Wells
Source of the photo: USACE NY
License: (CC BY 2.0)


CATERPILLAR D7R2 dozer at work
The CATERPILLAR D7R2 dozer at work.
Location: Rockaway Beach, New York, Queens, USA.
Taken on: 6 May 2010
Size of the photo: 2079 x 1328, 1,40 MB
Author of the photo: Ken Wells
Source of the photo: USACE NY
License: (CC BY 2.0)
Changes made: The image was extracted from the original photo.
The original photo is under the photo.


The crawler dozer at work
The crawler dozer at work.
The crawler dozer moves sand as it is pumped onto Rockaway Beach as part of a renourishment project there to repair damage to the beach caused by winter storms.
Location: Rockaway Beach, New York, Queens, USA.
Taken on: 6 May 2010
Size of the photo: 3872 x 2592, 1,22 MB
Camera model: Nikon D80
Author of the photo: Ken Wells
Source of the photo: USACE NY
License: (CC BY 2.0)


CAT D7R2 dozer at work
The CAT D7R2 dozer at work.
Location: Delta Junction, Alaska, USA.
Taken on: 2 March 2016
Size of the photo: 3010 x 1880, 1,97 MB
Author of the photo: U.S. Air Force photo by Airman 1st Class Cassandra Whitman
Source of the photo: PACIFIC AIR FORCES
Changes made: The image was extracted from the original photo.
The original photo is under the photo.


The CATERPILLAR D7R2 dozer at work
The CATERPILLAR D7R2 dozer at work.
The dozer operated by a 354th Civil Engineer Squadron “dirt boy”, pushes dirt into place to create a trail system March 2, 2016, in Delta Junction, Alaska. The 354th CES “dirt boyz” and structural craftsman Airmen work for approximately 38 days to prepare the Oklahoma Range for RED FLAG-Alaska’s strategic training mission.
Location: Delta Junction, Alaska, USA.
Taken on: 2 March 2016
Size of the photo: 5138 x 2432, 1,15 MB
Author of the photo: U.S. Air Force photo by Airman 1st Class Cassandra Whitman
Source of the photo: PACIFIC AIR FORCES


The CAT D7R2 dozer and a CAT dumper at work
The CAT D7R2 dozer and a CAT dumper at work.
A rock truck operated by a 354th Civil Engineer Squadron “dirt boy” dumps dirt to make a trail system March 2, 2016, in Delta Junction, Alaska. The 354th CES “dirt boyz” and structural craftsman Airmen work for approximately 38 days to prepare the Oklahoma Range for RED FLAG-Alaska’s strategic training mission.
Location: Delta Junction, Alaska, USA.
Taken on: 2 March 2016
Size of the photo: 5696 x 3415, 1,49 MB
Author of the photo: U.S. Air Force photo by Airman 1st Class Cassandra Whitman
Source of the photo: PACIFIC AIR FORCES





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