
517
Track Skidder
Power Train
The field proven Cat®3304 DIT Diesel engine,
heavy-duty torque converter and three-speed
transmission are matched to deliver high horsepower
for more drawbar pull, improved skidding
performance and ease of operation.
Application Flexibility
The 517 Skidder provides unsurpassed performance
and application flexibility due to superior balance,
torque converter power train and expanded track and
grapple/arch options. The versatile PAT blade makes
the 517 a multi-purpose machine.
Undercarriage
Use of D5H sized heavy-duty track prolongs the life of
the key undercarriage components, including rollers,
idlers, pins, bushings and shoes. An extended track
roller frame places more track under grapple/winch
and enhances balance.
Hydraulics
The load sensing hydraulic system reduces horsepower
consumption and system heat. A single lever controls
grapple and tong hydraulics, reducing operator efforts
for improved productivity. Exclusive Auto-Grab
hydraulics maintain constant tong gripping pressures
to compensate for shifting loads.
Customer Support
Your Cat dealer offers a wide range of services that
can be set up under a customer support agreement
when you purchase your equipment. The dealer will
help you choose a plan that can cover everything from
machine and attachment selection to replacement, to
help you get the best return on your investment.
Operator Station
Excellent all-around viewing area, angled seat, and
easy-to-reach controls reduce operator fatigue and
increase productivity. Available with enclosed cab or
open canopy.
Cable Skidder
The 517 is also offered in a cable configuration to
meet application demands in severe slope and
mountainous terrain.
Serviceability
Less service time means more working time. Major
components are made as modules and most can be
removed without disturbing or removing others.
March 4, 2008 3:20 PM

517 Track Skidder
Specifications
Engine
Net Flywheel Power 89.5 kW 120 hp
Engine Model Cat® 3304 DIT
Gross Power 101 kW 136 hp
Weights
Operating Weight 18 364 kg 40,450 lb
Operating Weight 17 343 kg 38234.72 lb
Operating Specifications
Track on Ground 2910 mm 114.57 in
Travel Speed - Fwd. 1st 3.7 km/h 2.3 mph
Travel Speed - Fwd. 2nd 6.6 km/h 4.1 mph
Travel Speed - Fwd. 3rd 11.5 km/h 7.1 mph
Travel Speed - Rev. 1st 4.6 km/h 2.8 mph
Travel Speed - Rev. 2nd 8 km/h 5 mph
Travel Speed - Rev. 3rd 14.2 km/h 8.8 mph
Steering Clutch/Brake
Transmission
Transmission 3-Speed Powershift
Fuel Tank
Fuel Capacity 260 L 69 gal
Dimension
Ground Clearance 646 mm 25.43 in
Track guage - center lines 2000 mm 78.74 in
Track guage - outside 2560 mm 100.79 in
Height - top of cab 3302 mm 130 in
Length - overall 4970 mm 195.67 in
Length - track on ground 2910 mm 114.57 in
Height - grouser 57 mm 2.24 in
Height - top of guard 987 mm 38.86 in
Height - top of drum 1557 mm 61.3 in
2March 4, 2008 3:20 PM

517 A B C D E F
Single Function 2465 mm / 96 in 909 mm / 36 in 2974 mm / 117 in x 1000 mm / 39 in x
Swing Boom Arch 3601 mm / 142 in 1500 mm / 59 in 4115 mm / 162 in 2748 mm / 108.1 in 1491 mm / 59 in 1249 mm / 49.2 inISO
Grapple for 517 A B C D
2.13 m / 84 in (Sorting) 1980 mm / 78 in 0.74 m2 / 8 ft2 1680 mm / 66 in 2130 mm / 84 in
2.29 m / 90 in (Bunching) 1920 mm / 75 in 0.74 m2 / 8 ft2 1640 mm / 64 in 2290 mm / 90 in
Grapples
Choose from a variety of grapple conguration to meet your needs.
Sorting Grapple
• Used for 305 mm (12 in) or larger diameter trees
• Designed to pick-up individual or several stems for
quick eyeles
Bunching Grapple
• Used for 305 mm (12 in) or smaller diameter trees
• Designed to gather bundle of stems and maximize
grapple loads
Arch Configurations
Two arch congurations allow you to eectively match the 517 to a wide variety of skidding applications.
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4March 4, 2008 3:20 PM

517 Track Skidder
Materials and specifications subject to change without notice.
Featured machines in photo may include additional equipment.
For more complete information on Cat products, dealer services,
and industry solutions, visit us on the web at www.cat.com.
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All Rights Reserved.
CAT, CATERPILLAR, SAFETY.CAT.COM their respective logos, "Caterpillar Yellow," and the POWER EDGE trade dress, as well as
corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.
Product ID: 517
®
March 4, 2008 3:20 PMAEHQ5971