Caterpillar Performance Handbook, January 2017, SEBD0351-47

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Specifications

Harvesting Track Feller Bunchers

ZTS (ZeroTail Swing) MODEL

521B

522B

Gross Power (ISO 14396) @ 1800 RPM Operating Weight (without head)

226 kW

303 hp

27 501 kg

32 528 kg

60,629 lb

71,711 lb

Engine Model

C9 ACERT

Emission Standards

Tier 3/Stage IIIA/ Japan 2006 (Tier 3) equivalent

Displacement Tractive Effort: Standard

8.8 L

537 in 3

314 kN

336 kN 378 kN

70,500 lbf

75,500 lbf 85,000 lbf

Optional

—

Undercarriage: Size

330 EX

Pitch

215.9 mm 2591 mm 4855 mm 87.5 kN·m

215.9 mm

8.5" 102"

8.5"

Track Gauge Track Length Swing Torque Swing Speed

2591-2870 mm

102-113"

4855 mm 87.5 kN·m

191.1"

64,500 lb-ft

6.8 RPM

Maximum Reach (with head) Bare Pin Lift @ Maximum Reach (without head)*

8.1 m

26'6"

6100 kg @ 6.2 m

13,500 lb @ 20'6"

Fuel Capacity

856 L

226 U.S. gal

Hydraulic System: Oil Fill Pump

Electric

Variable Displacement Pumps: Travel and Tilt Functions (552 Only) Boom and Implement Functions

416 L 416 L 114 L

110 gpm 110 gpm 30 gpm

Saw Pump

General Dimensions: Ground Clearance

889 mm 3200 mm

889 mm 3200 mm 3480 mm

35"

Width (with 610 mm/ 24" Track Shoe)

126"

126" 137"

Adjustable to

—

Height (to top of cab

with standard skylight)

3556 mm 1929 mm

3901 mm 1929 mm

140" 6'4"

154" 6'4"

Tail Swing (with Counterweight)

*Lift over front of tracks.

5-14 Edition 47

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