CAT 973K Steel Mill Crawler Loader


Dimensions

Ground Clearance 1.55 ft in (469.9 mm)
Overall Machine Width With Slag Bucket: Steel Mill Tracks – 500 Mm (19.7 In) 116.5 in (2959.1 mm)
Overall Machine Width Without Bucket: Steel Mill Tracks – 500 Mm (19.7 In) Shoes 107.9 in (2740.66 mm)
Ramp Angle 29 degrees
Reach At Full Lift Height And 45 Degrees Dump* 53.8 in (1366.52 mm)
Grading Angle 85 degrees
Overall Machine Height – Bucket Fully Raised 226.5 in (5753.1 mm)
Overall Machine Length* 298.4 in (7579.36 mm)
Note *With General Purpose bucket Performance with heavy duty teeth. Dimensions vary with bucket. Refer to Operating Specifications chart.

  • Machine Height to Top of Cab is with Steel Mill plate.
Bucket Height – Carry Position 19 in (482.6 mm)
Carry Position Approach Angle 15 degrees
Height – Bucket Hinge Pin 166.1 in (4218.94 mm)
Height – Top Of Stack 120.8 in (3068.32 mm)
Height To Top Of The Seat With Headrest 117.6 in (2987.04 mm)
Length – Front Of Track 209.6 in (5323.84 mm)
Clearance At Full Lift Height And 45 Degrees Dump* 116.2 in (2951.48 mm)
Machine Height – Top Of Cab 140 in (3556 mm)
Maximum Rollback – Ground/Carry Position 43 degrees/47 degrees
Maximum Rollback/Dump – Fully Raised 59 degrees/49 degrees
Digging Depth* 6.2 in (157.48 mm)

Undercarriage

Track Gauge 7.09 ft in (2159 mm)
Track Shoe Width – Standard 19.7 in (500.38 mm)
Ground Contact Area (Iso 16754:2008): Steel Mill Shoe – 500 Mm (19.7 In) 5161 in2 (3.33 m2)
Ground Pressure* (Iso 16754:2008): Steel Mill Shoe – 500 Mm (19.7 In) 14.4 psi
Grouser Height – Double Grouser 1.9 in (48.26 mm)
Link Pitch 8.5 in (215.9 mm)
Number Of Shoes – Each Side 40
Track On Ground 115.4 in (2931.16 mm)
Track Rollers – Each Side 7
Track Shoe Type Heavy Duty Sealed and Non Lubricated – Steel Mill, Double Grouser
Note * Calculated using Steel Mill operating weight with Slag Bucket.

Engine Details

Emissions U.S. EPA Tier 4 Final/EU Stage IV/Korea Tier 4
Engine Model Cat C9.3 ACERT
Flywheel Power 275 hp (205.1 kw)
Note (1) Engine ratings at 1,800 rpm.
Note (2) No derating required up to 2164 m (7,200 ft) altitude.
Note (3) All nonroad Tier 4 Final, Stage IV and Korea Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) with 15 ppm (mg/kg) of sulfur or less, or up to B20 biodiesel blended with ULSD. B20 should meet ASTM D7467 specification (biodiesel blend stock should meet Cat biodiesel spec, ASTM D6751 or EN 14214). Cat DEO-ULS or oils that meet the Cat ECF-3, API CJ-4, and ACEA E9 specification are required. Consult your OMM for further machine specific fuel recommendations.
Note (4) Diesel Exhaust Fluid (DEF) used in Cat Selective Catalytic Reduction (SCR) systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241.
Engine Power – Maximum – Iso 14396 306 hp (228.2 kw)
Engine Power – Maximum – Sae J1995 310 hp (231.2 kw)
Engine Power – Maximum – Iso 14396 (Din) 310 hp (231.2 kw)
Net Power (Rated) – Iso 9249/Sae J1349 275 hp (205.1 kw)
Net Power (Rated) – Iso 9249/Sae J1349 (Din) 278 hp (207.4 kw)

Operational Specs

Operating Weight 74293 lb (33698.8 kg)

Weights

Note Steel Mill weights are with new slag bucket.
Operating Weight – Steel Mill 74293 lb (33698.8 kg)
Shipping Weight – Steel Mill 63097 lb (28620.4 kg)

Buckets

Capacity – General Purpose 4 yd3 (3.1 m3)
Width – Slag 112 in (2844.8 mm)
Capacity – Slag 4 yd3 (3.1 m3)

Service Refill Capacities

Cooling System 11.6 gal (44 L)
Fuel Tank Capacity 101.5 gal (384.3 L)
Def Tank 9.2 gal (34.9 L)

Standards

Brakes Brakes meet the standard ISO 10265:2008.
Rops ROPS (Rollover Protective Structure) offered by CAT for the machine meets ROPS criteria ISO 3471:2008.
Fops FOPS (Falling Object Protective Structure) meets ISO 3449-2005 Level II.
Cab – Declared Dynamic Operator Sound Pressure Level
  • The declared dynamic operator sound pressure level when “ISO 6396:2008” is used to measure the value for an enclosed cab is 75 dB(A). The measurements were conducted at 80% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds. The cab was properly installed and maintained. The measurements were conducted with the cab doors and the cab windows closed.
  • NOTE: The dynamic operator sound pressure level uncertainty is 2 dB(A).
Cab – Hearing Protection Hearing protection may be needed when the machine is operated with an open operator station for extended periods, in a noisy environment or with a cab that is not properly maintained.
Cab – Labeled Sound Power Level The guaranteed exterior sound power level (LWA) is measured according to the dynamic test procedures and the conditions that are specified in “ISO 6395:2008” [111 dB(A)]. The measurements were conducted at 80% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds.
Sound Level Information (Eu)
  • Sound Level Information for Machines in European Union Countries and in Countries that Adopt the “EU Directives”: The declared dynamic operator sound pressure level when “ISO 6396:2008” is used to measure the value for an enclosed cab is 75 dB(A). The measurements were conducted at 80 percent of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds. The cab was properly installed and maintained. The measurements were conducted with the cab doors and the cab windows closed.
  • NOTE: The dynamic operator sound pressure level uncertainty is 2 dB(A).
  • If equipped, the certification label is used to verify the environmental sound certification of the machine to the requirements of the European Union. The value that is listed on the label indicates the guaranteed exterior sound power level (LWA) at the time of manufacture for the conditions that are specified in “2000/14/EC.”

Air Conditioning System

Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes.
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