555D Wheel Skidder

Overview
Gross Power
275 hp
Engine Model
Cat C7.1 ACERT™
Fuel Tank
100 gal

Building on Caterpillar’s 40+ years’ experience designing and manufacturing skidders, the Cat® D Series Wheel Skidder delivers more productivity at lower operating cost. Get more wood to the landing faster in a stable machine with a roomy, comfortable environment for the operator. Advanced hydraulics speed up multi-functioning and cycle times and give you more lift capacity. The D Series runs cool and is designed to keep debris from collecting inside the machine. Tilting cab and other access points cut the time needed for daily maintenance and servicing.

Engine

Gross Power
275 hp
Engine Model
Cat C7.1 ACERT™
Displacement
428 in3
Bore
4 in
Stroke
5 in
Derating Altitude
9,843 ft
Number of Cylinders
6
Maximum Torque at Rated Speed
922 N-m at 1400 RPM
Electrical System
24V
Battery Quantity
2
Battery - Volts
12V
Battery Capacity
950 CCA
Gross Power
275 HP
Engine Model
Cat C7.1 ACERT™
Displacement
428 in³
Bore
4 in
Stroke
5 in
Derating Altitude
9,843 ft
Number of Cylinders
6

Service Refill

Fuel Tank
100 gal
Cooling System
15 gal
Engine Oil
7 gal
DEF Tank
5 gal
Transmission - Torque Converter
14 gal (US)
Parking Brake
14 oz
Differential, Final Drive - Front
14 gal
Differential - Final Drives - Rear
14 gal (US)
Differential - Final Drives - Tank
17 gal (US)
Differential - Final Drives - Total
33 gal (US)
Fuel Tank
100 gal (US)
Differential - Final Drives - Front
14 gal (US)
Cooling System
15 gal (US)
Engine Oil
7 gal (US)
DEF Tank
5 gal (US)
Parking Brake
14 oz

Power Train

Transmission
Countershaft Powershift
Transmission Cooler Type
Water to Oil
Travel Speed - Forward 1
4 mile/h
Travel Speed - Forward 2
5 mile/h
Travel Speed - Forward 3
7 mile/h
Travel Speed - Forward 4
9 mile/h
Travel Speed - Forward 5
12 mile/h
Travel Speed - Forward 6
12 mile/h
Travel Speed - Reverse 1
4 mile/h
Travel Speed - Reverse 2
7 mile/h
Travel Speed - Reverse 3
12 mile/h
Transmission
Countershaft Powershift

Hydraulic System

Type
Load sense, closed center
Pump Type
Variable displacement piston pump
Pump Output
58 gal/min
Type
Load sense, closed center
Pump Type
Variable displacement piston pump
Pump Output
58 gal/min

Lift Chart

Lift lowest, furthest - Dual Function
15 in
Ground level to axle center line* - Dual Function
33 in
Reach highest, retracted - Dual Function
64 in
Reach lowest, retracted - Dual Function
74 in
Reach lowest, furthest - Dual Function
113 in
Reach highest, furthest - Dual Function
118 in
Lift Height, Furthest - Dual Function
87 in
Sorting Capacity
44 in
Lift Height, Retracted - Dual Function
118 in
Lift Lowest, Furthest - Dual Function
15 in
Ground Level to Axle Centerline* - Dual Function
33 in
Reach - Highest, Retracted - Dual Function
64 in
Reach - Lowest, Retracted - Dual Function
74 in
Reach - Lowest, Furthest - Dual Function
113 in
Reach - Highest, Furthest - Dual Function
118 in

Dimensions

Ground level to axle center line*
33 in
Ground Clearance*
22 in
Blade lift height*
56 in
Blade dig depth*
21 in
Height to top of cab*133.3
133 in
Blade width - Wide
124 in
Overall width - 30.5L-32 NOAW
127 in
Overall width - 35.5L-32 NOAW
139 in
Wheelbase
161 in
Ground level to top arch/boom* - Dual Function
178 in
Ground Level to Axle Centerline*
33 in
Overall Length - Dual Function
355 in
Blade Lift Height*
56 in
Blade Dig Depth*
21 in
Blade Width - Standard
105 in
Weight - Dual Function
47,488 lb
Overall Width - 30.5L-32 2X Ring
127 in
Overall Width - 30.5L-32
133 in
Overall Width - 35.5L-32 NOAW
139 in
Ground Level to Top Arch/Boom* - Dual Function
178 in
Ground Clearance*
22 in
Height - Top of Cylinders
133 in
Blade Width - Wide
124 in
Overall Width - 30.5L-32 NOAW
127 in
Overall Width - 35.5L-32
146 in
Wheel Base
161 in

Brakes

Service
Enclosed wet single disc
Transmission Cooler Type
Spring applied, hydraulic released
Service
Enclosed wet single disc
Transmission Cooler Type
Spring applied, hydraulic released

Winch - Logging Winch

Max Line Speed
280 ft/min
Drum Diameter
195 ft
Maximum Line Pull - Bare Drum
40,016
Maximum Line Speed
280 ft/min
Drum Capacity - 25.4mm (1 in)
85 ft
Type
Hydraulically driven
Drum Width
10 in
Drum Diameter (1)
9 in
Drum Diameter (2)
195 ft

Winch - Retrival Winch

Type
Hydraulically driven
Maximum Line Speed
134 ft/min
Drum Capacity - 19.0 mm (3/4 in)
195 ft
Drum Capacity - 25.4 mm (1 in)
85 ft
Maximum Line Pull - Bare Drum
40,016
Drum Diameter
9 in
Drum Width
10 in

Grapple Dimensions

Grapple Capacity
22 ft²
Tip to Tip Height
93 in
Tong Ppening
144 in
Full Open Height
79 in
Minimum Stem Diameter
12 in
Full Closed Height
62 in
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