Cat® C4.4 ACERT™ with twin turbo
U.S. EPA Tier 4 Final/EU Stage IV/Korea Tier 4
Engine Power (Maximum) – SAE J1995
Engine Power (Maximum) – ISO 14396
Engine Power (Maximum) – ISO 14396 (DIN)
Net Power (Rated) – SAE J1349
Net Power (Rated) – ISO 9249
Operating weights: includes EROPS, A/C, lights, VPAT Dozer, transmission, drawbar, engine enclosure, 3-valve hydraulics, 100% fuel, Cat Comfort Series air suspension seat and operator.
Operating Weight – XL
Shipping Weight – XL
Operating Weight – LGP
Shipping Weight – LGP
*VPAT foldable blades have the same capacity and width as the XL/LGP VPAT blades.
Blade Capacity – XL, VPAT
Blade Width Over End Bits – XL, VPAT
Blade Width Over End Bits – LGP, VPAT
Blade Capacity – LGP, VPAT
Width of Shoe – XL
Width of Shoe – LGP
Shoes/Side – XL/LGP
Track Gauge – XL
Track Gauge – LGP
Track on Ground – XL/LGP
Ground Contact Area (ISO 16754) – XL
Ground Contact Area (ISO 16754) – LGP
Track Rollers/Side – XL/LGP
Ground Pressure (ISO 16754) – XL
Ground Pressure (ISO 16754) – LGP
Grouser Height – MS Shoe
Grouser Height – ES Shoe
Service Refill Capacities
Final Drives (each XL and LGP)
Each Additional Shank
Maximum Penetration Force – LGP
Maximum Penetration Force – XL
Maximum Pry-out Force – LGP
Maximum Pry-out Force – XL
58.5 × 138 mm (2.3 × 5.4 in)
Weight with One Shank
Number of Pockets
Overall Beam Width
Beam Cross Section
165 × 211 mm (6.5 × 8.3 in)
Maximum Penetration – XL and LGP
Drum Capacity (optional rope)
Optional Cable Size
Maximum Bare Drum – Line Pull
Maximum Bare Drum – Line Speed
Maximum Full Drum – Line Pull
Maximum Full Drum – Line Speed
Cable Ferrule Size (O.D.)
Rope Recommended Diameter
*Weight includes: pump, operator controls, oil, mounting brackets and spacers.
Cable Ferrule Size (length)
Winch and Bracket Length
Winch Case Width
Drum Capacity (recommended rope)
FOPS (Falling Object Protective Structure) meets ISO 3449-2005 Level II.
ROPS (Rollover Protective Structure) offered by Caterpillar for the machine meets ROPS criteria ISO 3471:2008.
Brakes meet the standard ISO 10265:2008.
Service Refill Capacities
Net Power (Rated) – ISO 9249 (DIN)
Transmission – Travel Speed
Fully complies with Tier 4 Final/Stage IV/Korea Tier 4 emission standards
The hand/arm vibration of this machine is below 2.5 m/s2, for an experienced operator in a dozing application.
The whole body vibration information is available in Operation and Maintenance Manual SEBU8257.
The whole body vibration information is available in Pocket Guide HEGQ3339 “Driving Down Vibration.”
Operator’s seat meets input “spectral class EM6” according to ISO 7096:2000. Seat has a transmissibility factor of “SEAT<0.7.”
All non road Tier 4 Interim and Final, Stage IIIB and IV, and Korea Tier 4 diesel engines are required to use only Ultra Low Sulfur Diesel (ULSD) fuels containing 15 ppm EPA/10 ppm EU (mg/kg) sulfur or less. Biodiesel blends up to B20 (20% blend by volume) are acceptable when blended with 15 ppm (mg/kg) sulfur or less 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.
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 ratings at 2,200 rpm
Net power advertised is the power available at the engine flywheel when the engine is equipped with the air cleaner, alternator, A/C compressor at full load and cooling fan at maximum speed.
No engine derating required up to 3000 m (9,840 ft) altitude; beyond 3000 m (9,840 ft) automatic derating occurs.
Shipping weights: includes EROPS, A/C, lights, VPAT Dozer, transmission, drawbar, engine enclosure, 3-valve hydraulics, 10% fuel, Cat Comfort Series air suspension seat.
Air Conditioning System
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.3 kg of refrigerant which has a CO2 equivalent of 1.859 metric tonnes.
OTHER STANDARD EQUIPMENT
TRACKS (40 SECTIONS)
TRACK GUIDING GUARDS
GUARDS AND PROTECTION
REAR ATTACHMENT CONTROL
WEATHER PACKAGES AND STARTERS
FIELD INSTALLED ATTACHMENTS
MAINTENANCE AND RELATED ATTACHMENTS