Top Performance. A machine designed to be productive over a wide range of tough applications from heavy clearing to high-volume truck loading, from the slag pits of steel mills to big city landfills. The 973C not only can master the toughest excavation but can also finish grade with delicate precision. Reliable, durable, rugged construction, self-diagnosis of electrical and power train systems, and easy maintenance help ensure extended service life.
Engine |
Units: US | |
 | ||
Flywheel Power |
242 hp |
178 kW |
| ||
Engine Model |
Cat® C9 ACERT |
Cat® C9 ACERT |
| ||
Net Power – Caterpillar |
242 hp |
178 kW |
| ||
Net Power – ISO 9249 |
242 hp |
178 kW |
| ||
Net Power – SAE J1349 |
242 hp |
178 kW |
| ||
Net Power – EEC 80/1269 |
242 hp |
178 kW |
| ||
Bore |
4.41 in |
112 mm |
| ||
Stroke |
5.87 in |
149 mm |
| ||
Displacement |
537 in3 |
8.8 L |
| ||
| ||
Weights |
||
| ||
Operating Weight |
58142 lb |
26373 kg |
| ||
Shipping Weight – without Bucket |
53490 lb |
24263 kg |
| ||
| ||
Buckets |
||
| ||
Capacity – General Purpose |
4.19 yd3 |
3.2 m3 |
| ||
Capacity – Multi-Purpose |
3.79 yd3 |
2.9 m3 |
| ||
Bucket Width – General Purpose |
112 in |
2845 mm |
| ||
Bucket Width – Multi-Purpose |
107 in |
2710 mm |
| ||
| ||
Undercarriage |
||
| ||
Track Shoe Type |
Double Grouser, Extreme Service |
Double Grouser, Extreme Service |
| ||
Track Shoe Width – Standard |
19.7 in |
500 mm |
| ||
Track Shoe Width – Optional |
26.6 in |
675 mm |
| ||
Track Rollers – Each Side |
7 |
7 |
| ||
Number of Shoes – Each Side |
40 |
40 |
| ||
Track on Ground |
115 in |
2930 mm |
| ||
Ground Contact Area – Standard Shoe |
4542 in2 |
2.93 m2 |
| ||
Ground Contact Area – Optional Shoe |
6138 in2 |
3.96 m2 |
| ||
Ground Pressure – Standard Shoe |
12.8 psi |
88.3 kPa |
| ||
Ground Pressure – Optional Shoe |
9.4 psi |
65.3 kPa |
| ||
Grouser Height – Double Grouser |
1.93 in |
49 mm |
| ||
Track Gauge |
82 in |
2080 mm |
| ||
| ||
Drive System |
||
| ||
Type |
Hydrostatic drive with infinite machine speeds up to 10 km/h (6.2 mph) |
Hydrostatic drive with infinite machine speeds up to 10 km/h (6.2 mph) |
| ||
Drive Pump |
Two, variable-displacement, slipper-type axial piston pumps |
Two, variable-displacement, slipper-type axial piston pumps |
| ||
Track Motor |
Two, variable-displacement, bent axis piston motors |
Two, variable-displacement, bent axis piston motors |
| ||
Relief Valve Setting |
6380 psi |
44000 kPa |
| ||
| ||
Hydraulic System – Equipment |
||
| ||
Type |
Vane |
Vane |
| ||
Output |
88.5 gal/min |
335 L/min |
| ||
Main Relief Valve Setting |
2755 psi |
19000 kPa |
| ||
Lift Cylinders – Bore |
6.5 in |
165 mm |
| ||
Lift Cylinders – Stroke |
36.8 in |
935 mm |
| ||
Tilt Cylinders – Bore |
5.5 in |
140 mm |
| ||
Tilt Cylinders – Stroke |
24.9 in |
633 mm |
| ||
| ||
Hydraulic System – Pilot |
||
| ||
Output – maximum |
3.2 gal/min |
12 L/min |
| ||
Relief Valve Setting |
348 psi |
2400 kPa |
| ||
Cycle Time – Raise |
6.7 Seconds |
6.7 Seconds |
| ||
Cycle Time – Dump |
5.1 Seconds |
5.1 Seconds |
| ||
Cycle Time – Lower, Empty, Float Down |
2.9 Seconds |
2.9 Seconds |
| ||
| ||
Service Refill Capacities |
||
| ||
Fuel Tank |
113 gal |
430 L |
| ||
Cooling System |
11 gal |
43 L |
| ||
Crankcase (with Filter) |
7.66 gal |
29 L |
| ||
Final Drives (each) |
7.5 gal |
28.5 L |
| ||
Hydraulic Tank |
17.7 gal |
67 L |
| ||
Pump Drive Box |
1 gal |
3.8 L |
| ||
Pivot Shaft |
.8 gal |
3 L |
| ||
Hydraulic System |
44.6 gal |
169 L |
| ||
Hydrostatic Drive System |
21.9 gal |
83 L |
| ||
| ||
Operating Specifications |
||
| ||
Max. Travel Speed |
6.2 mph |
10 km/h |
| ||
| ||
Ripper Specifications |
||
| ||
Type |
Radial |
Radial |
| ||
Number of pockets |
3 |
3 |
| ||
Overall Width/Beam |
86 in |
2200 mm |
| ||
Shank cross section |
74 x 175 mm 2.9x 6.9 in |
74 x 175 mm 2.9x 6.9 in |
| ||
Ground Clearance |
26 in |
670 mm |
| ||
Penetration |
17 in |
428 mm |
| ||
Ripping Width |
78.74 in |
2000 mm |
| ||
Cylinders – Bore |
5 in |
127 mm |
| ||
Cylinders – Stroke |
14.4 in |
365 mm |
| ||
Addition to Machine Length due to Ripper (in Transportation Position) |
73.8 in |
1875 mm |
| ||
| ||
Standards |
||
| ||
ROPS/FOPS |
ROPS/FOPS |
ROPS/FOPS |
| ||
Brakes |
Brakes |
Brakes |
| ||
Cab |
Cab |
Cab |
| ||
| ||
Electrical System |
||
| ||
Type |
24V DC |
24V DC |
| ||
Battery Capacity |
1100 CCA |
1100 CCA |
| ||
Battery Voltage |
12 |
12 |
| ||
Battery Quantity |
2 |
2 |
| ||
Alternator |
65-AMP, Heavy-duty Brushless | |
