S P E C I F I C A T I O N S
C R A W L E R D O Z E R S
550H
C O N S T R U C T I O N E Q U I P M E N T
Engine
550H LT
550H LGP
John Deere 4045T with altitude-compensating
Type.......................................................................John Deere 4045T with altitude-compensating
turbocharger
turbocharger
Rated power @ 2,200 rpm.....................................80 SAE net hp (60 kW)
Cylinders, wet sleeve..............................................4
84 SAE net hp (63 kW)
4
Displacement .........................................................276 cu. in. (4.52 L)
Fuel consumption, typical.......................................1.7 to 2.6 gal./hr. (6.4 to 9.8 L/h)
Maximum net torque..............................................255 lb.-ft. (344 Nm) @ 1,200 rpm
Lubrication.............................................................pressure system with full-flow spin-on filter and oil-to-water cooler
276 cu. in. (4.52 L)
1.7 to 2.6 gal./hr. (6.4 to 9.8 L/h)
276 lb.-ft. (372 Nm) @ 1,200 rpm
Air cleaner..............................................................dual stage dry type with safety element, precleaner, and dash-mounted restriction indicator
Electrical system....................................................12 volt with 65-amp alternator
Cooling fan.............................................................blower
Transmission
Dual-path, electronic-controlled, hydrostatic drive; load-sensing feature automatically adjusts speed and power to match changing load conditions; each individual track is
powered by a variable-displacement piston pump and two-speed motor combination; decelerator controls speed from holding to 5.0 mph (8.0 km/h)
Travel speeds (infinitely variable)
Forward and reverse ........................................0 to 5.0 mph (0 to 8.0 km/h)
Final Drives
Heavy-duty triple-reduction final drives attach directly to the mainframe and are isolated from track frame and dozer frame loads
Steering
Single-lever steering, direction control, and counterrotation; full power turns and infinitely variable track speeds provide unlimited maneuverability and optimum control;
hydrostatic steering eliminates steering clutches and brakes
Brakes
Hydrostatic (dynamic) braking stops the machine whenever the direction-control lever is moved to neutral, whenever the decelerator is depressed to the end of travel, or
whenever the brake pedal is depressed
Automatic Park Brake
Exclusive safety feature engages wet, multiple-disc brakes automatically whenever the engine stops, whenever the operator applies the brake pedal, or whenever the neutral
start lever lock is in the stop position; machine cannot be driven with brake applied, reducing wear out or need for adjustment
Hydraulic System
System...................................................................open center
Pressure, main relief ..............................................3,000 psi (20 685 kPa)
Pump .....................................................................gear
Flow.......................................................................15 gpm (56.8 L/min.) @ 2,200 rpm
Filter, return oil.......................................................10 micron
Control ...................................................................T-bar three function
Cylinders................................................................heat-treated, chrome-plated, polished cylinder rods, hardened steel (replaceable bushings) pivot pins
Capacities (U.S.)
Fuel tank with lockable cap....................................47 gal. (178 L)
Cooling system with coolant recovery tank.............17 qt. (16 L)
Engine oil including spin-on filter ...........................15 qt. (14 L)
Transmission reservoir refill with filter change .......11.3 gal. (42.7 L)
Final drive (each)....................................................7 qt. (6.6 L)
Hydraulic reservoir refill with filter change .............8.5 gal. (32.2 L)
All power train and hydraulic systems allow 45-degree maximum operation.
20
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(drawing on page 23)
Dimensions
550H LT
550H LGP
A
B
C
D
E
Overall height with ROPS or cab.....................108 in. (2743 mm)
Overall length*................................................159 in. (4040 mm)
Overall length with extended drawbar ............161 in. (4090 mm)
Overall length with winch** ............................179 in. (4547 mm)
108 in. (2743 mm)
159 in. (4040 mm)
161 in. (4090 mm)
179 in. (4547 mm)
Ground clearance, minimum
Single-bar grouser..........................................13.6 in. (345 mm)
Swamp shoes.................................................14.4 in. (366 mm)
13.6 in. (345 mm)
14.4 in. (366 mm)
F
G
H
Blade lift height ..............................................31.4 in. (797 mm)
Blade digging depth........................................20.6 in. (523 mm)
31.4 in. (797 mm)
20.6 in. (523 mm)
Blade cutting edge angle, three position
adjustable.......................................................52, 56, or 60 degrees
*For the 550H LT and 550H LGP, there is no change to overall length with retrieval hitch.
**See page 23 for forestry application.
52, 56, or 60 degrees
550H Blade Specs
I
Width.............................................................105 in. (2667 mm)
J
Height.............................................................32.5 in. (826 mm)
SAE capacity ..................................................2.1 cu. yd. (1.6 m3)
K
L
M
N
O
P
Blade angle ....................................................22.2 degrees
Angled width ..................................................98.7 in. (2507 mm)
Tilt..................................................................14.3 in. (364 mm)
Cut reach........................................................5 in. (127 mm)
Width over track.............................................79 in. (2006 mm)
Cast reach......................................................14.7 in. (373 mm)
I
Width.........................................................................................................................................................................115 in. (2921 mm)
J
Height.........................................................................................................................................................................32.5 in. (826 mm)
SAE capacity ..............................................................................................................................................................2.29 cu. yd. (1.75 m3)
K
L
M
N
O
P
Blade angle ................................................................................................................................................................22.2 degrees
Angled width ..............................................................................................................................................................107.9 in. (2742 mm)
Tilt..............................................................................................................................................................................15.7 in. (399 mm)
Cut reach....................................................................................................................................................................2.4 in. (61 mm)
Width over track .........................................................................................................................................................93 in. (2362 mm)
Cast reach..................................................................................................................................................................12.5 in. (318 mm)
I
Width.........................................................................................................................................................................121 in. (3073 mm)
J
Height.........................................................................................................................................................................32.5 in. (826 mm)
SAE capacity ..............................................................................................................................................................2.4 cu. yd. (1.83 m3)
K
L
M
N
O
P
Blade angle ................................................................................................................................................................22.2 degrees
Angled width ..............................................................................................................................................................114.4 in. (2906 mm)
Tilt..............................................................................................................................................................................16.5 in. (420 mm)
Cut reach....................................................................................................................................................................5.7 in. (145 mm)
Width over track .........................................................................................................................................................93 in. (2362 mm)
Cast reach..................................................................................................................................................................15.7 in. (399 mm)
I
Width.........................................................................................................................................................................128 in. (3251 mm)
J
Height.........................................................................................................................................................................30.2 in. (767 mm)
SAE capacity ..............................................................................................................................................................2.21 cu. yd. (1.69 m3)
K
L
M
N
O
P
Blade angle ................................................................................................................................................................22.2 degrees
Angled width ..............................................................................................................................................................120.9 in. (3070 mm)
Tilt..............................................................................................................................................................................17.5 in. (444 mm)
Cut reach....................................................................................................................................................................9.1 in. (231 mm)
Width over track .........................................................................................................................................................93 in. (2362 mm)
Cast reach..................................................................................................................................................................18.8 in. (478 mm)
22
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A
E
J
F
H
Ground Line
M
G
I
Concrete Level
B
C
1.9 in. (49 mm)
single grouser height
K
Cut Reach
N
O
Width Over Track
L
P
Cast Reach
Q
D
32
30
550H Forestry Application
Available limb risers and screens for the rollover protective structure,
John Deere-built, self-contained 4000S Winch* for versatile skidding
and clearing operations
28
120
26
24
D
Q
Overall length with winch** ............................179 in. (4547 mm)
100
22
550H LT
4000S Winch length .......................................29.6 in. (752 mm)
*Reference 4000S Winch spec sheet.
**See page 22 for related dimensions.
20
550H LGP
80
60
40
20
18
16
14
12
10
8
Drawbar Pull
Crawler speed vs ground pull.................................usable pull will depend
on traction and weight
of tractor
6
4
2
mph 0.0
km/h
0.5
1.0
1.5
2.0
2.5
3.0
5
3.5
4.0
4.5
5.0
0
1
2
3
6
7
8
4
SPEED
23
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450H / 550H / 650H Crawler Dozers
Key: G Standard equipment L Optional or special equipment
*See your John Deere dealer for further information.
450 550 650 Operator’s Station (cont.)
450 550 650 Engine
450 550 650 C-Frames and Blades
450 550 650 Undercarriage (cont.)
G
G
G Electric fuel shutoff, key start
switch
G
G
G
G
G
G
G Six-way all-hydraulic C-frame
with adjustable blade pitch
G Remote C-frame pivot grease
banks
G Cordura-covered hoses, con-
veniently replaceable lengths
G Straight end bits
L L L Sealed track chains
L L L Sealed and lubricated track
chains
L L L Self-cleaning pyramid swamp
shoes*
L L L Accessories: Convex wide-
angle interior rearview mirror /
Knee cushions (2) / Seat-side
lockable storage box/lunch
box/cup holder
L L L Rear window wiper and washer
for cab
L L L AM/FM weatherband radio
L L L Complete enclosure ROPS-to-
cab conversion panels
L L L Rear-and-side-only enclosures
L L L Front windshield and doors
enclosure
G
G
G
G
G
G
G Oil-to-water engine oil cooler
G Vertical spin-on oil filter
G Vertical spin-on primary fuel
filter with water separator
G Vertical spin-on final fuel filter
G Dual-element dry air cleaner,
built-in precleaner, and evacu-
ator valve
Lights
G
G
G
G
G
G
G
G
L L L Grille-mounted driving lights
(2), rear light (1), halogen,
2,000 candlepower each
L L L High-intensity work lights,
front (2) and rear (2), with
G Pitch link, pitched mid-range
L L L Alternate pitch link, pitched
forward
L L L Alternate pitch link, pitched back
G
G
G Above-hood pre-screener/
raincap
Electrical
G 12-volt system
G Fuse panel, blade-style multi-
fused circuit breakers
G Electric horn
G Reverse warning alarm
G Electric fuel gauge
G Electric hourmeter
G Transmission oil pressure gauge
G Master electrical disconnect
G Positive battery terminal covers
G By-pass start safety cover at
starter
steel guards, 65 watts each*
L L L External primary precleaner*
G
G
G
G
Operator’s Station
G Modular ROPS/FOPS canopy,
isolation mounted (conforms
to SAE J1040)
G
G
G
G
G
G
G
G
G
G
G Enclosed safety fan guard
G Coolant recovery tank
G Engine coolant to –34°F (–37°C)
G Blower-type cooling fan
G Trash-resistant seven-fin in-line
radiator
Overall Vehicle
G One-piece unitized construc-
tion mainframe
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G Front tow loop (bolt-on)
G Reinforced engine and mid-
frame bottom guards
L L L Under-seat ROPS heater,
30,000 Btu/hr
L L L Modular ROPS/FOPS cab, iso-
lation mounted (conforms to
SAE J1040): Fresh air intake
cab heater/defroster/pressur-
izer, 18,000 Btu/hr with air pre-
cleaner / Dome light / Deluxe
headliner with molded air ducts
for heater, defroster, and air
conditioner / 30,000 Btu/hr
underseat heater / Front wind-
shield and doors, wipers and
washers / Tinted safety glass /
Antenna for radio / 95-amp
alternator
L L L Radiator sand screen (steel)
G
G
G
G
G
G
G
G
G
G Integral transmission guard
G Heavy-duty louvered grille
G Perforated engine side shields
G Vandal protection lock provi-
sions for: Engine service access
cover / Fuel fill / Hydraulic
reservoir fill/check / Trans-
mission reservoir fill/check /
Instrument panel
G
G Under-hood muffler, vertical
exhaust stack
G Pre-wired for ether start aid
G
G
L L L Electric ether start aid
L L L Coolant heater, 1,000 watts,
110 volts
G
G
G Electronic monitor, visual and
audible warning
L L L Coolant heater, fuel fired
L L L Electronic monitor with addi-
tional gauges
Powertrain and Controls
G Dual-path hydrostatic trans-
mission
G Single-lever steering, F-N-R
direction control
G Decelerator pedal, automatic
retardation
G Engine-speed selection lever
G Infinite ground speed selection
lever
G
G
G
G
G
G
L Ground-speed selection display
G
G
G Lockable grease gun/tool
storage compartment in right
access door
G
G
G Single 12-volt low-mainte-
nance battery, 190-min. reserve
capacity, 950 CCA
L L L Environmental drains
L L L Chrome exhaust stack
L L L Trademarks/decals, French or
Spanish
L L L Dual 12-volt low-maintenance
batteries, 380-min. reserve
L L L Air conditioning, 24,000 Btu/hr
G
G
G
G
G Right and left access
G Slip-resistant front-mounting
steps
G
G
G
G
capacity, 1,900 CCA
G 65-amp sealed alternator with
G
G
L L L Transport lift and tie-down rings*
ROPS
Protection Packages
L L L Extreme-duty louvered grille
and hose protection
L L L Limb risers, arched or point-
to-point
L L L Operator-protective rear screen
L L L Operator-protective side
screens (ROPS)
L L L Operator-protective full-screen
package
L L L Heavy-duty engine air-intake
guard
G
G
G Ergonomically located hand-
holds
L L L Ground speed in grip with
L L L 20-amp power port, for phone
speed ratio
G Automatic straight-ahead
tracking
G Dynamic braking (anti-free
wheel)
G Counterrotation
G Service-brake pedal
G Transmission neutral lock,
safety start switch
G Automatic spring-applied,
hydraulic-released parking
brake
G Independent transmission oil
reservoir with sight gauge
G Onboard diagnostics with
visual display
G Oil-to-air transmission oil
cooler
and radio
Hydraulic System
G 15-gpm fixed-displacement
G
G
G
G
G
G
G
G
G
G
G Headliner
G Floormat
G Adjustable footrests
G Adjustable full-length armrests
G Built-in Operator’s Manual
storage
G
G
G
G
G
G
gear pump
L L L Pump, through-drive for winch
G
G
G
G
G
G
or auxiliary pump
G
G
G
G
G Low-effort T-bar blade control
G Independent reservoir with
sight gauge
G Vertical spin-on filter
G O-ring face seal connectors
G Three-function valve
G
G
G Suspension vinyl seat (con-
forms to SAE J899): Fore and
aft/weight and height com-
bined adjustment / Adjustable
leg support / Seat belt, 2 in.
(51 mm), retractable with CRS
(conforms to SAE J386)
G
G
G
G
G
G
G
G
L L L Air-conditioning module guard
Attachments
L L L Counterweight, rear, 330 lb.
(150 kg) each
L L L Counterweight, front, 240 lb.
(109 kg) each
L L L Retrieval hitch with pin
L L L Extended rigid drawbar with
pin for pull-type implements
L L L Extended drawbar for winch
L L L Parallelogram ripper with five
shank pockets and three teeth
L L L Standard or low-speed winch
L L L Power-in/out standard-speed
winch
L L L Power-in/out low-speed winch
L L L Four-roller fairlead for winch
L L L Log arch for winch
G
G
G
G
G
G
L L L Four- and five-function valves
with levers, with or without
float*
L L L Deluxe suspension vinyl or
cloth seat (conforms to SAE
J899): Fore and aft/weight and
height combined adjustment /
Adjustable leg support / Adjust-
able backrest angle / Adjustable
lumbar support / Adjustable
seatback extension / Seat belt,
3 in. (76 mm), retractable with
CRS (conforms to SAE J386)
L L L Seat belt, 3 in. (76 mm), retract-
able with CRS (conforms to
SAE J386)
L L L Rear auxiliary plumbing
Undercarriage
Single-flange rollers
G
G
G
G
G
G
G Built-in final drive seal guards
G Triple-reduction final drives
with wet multi-disc brakes
L L G Double-flange rollers*
G
G
G
G
G Full-length track frame covers
G Chain guides, front and rear
(bolt-on)
G Fully protected track-tension
adjusters
L L L Remote diagnostic test ports
G
G
G Maximum forward/reverse
speed 5.0 mph (8.0 km/h)
G Automatic 15% increase in
reverse speed from set for-
ward speed
G
G
G
G
G
G
G
G
G Solid sprockets
G Sprocket rock guards (bolt-on)
G
G
G Convex interior rearview mirror
L L L Bolt-on full-length track-roller
rock guards
Net engine power is with standard equipment including air cleaner, exhaust system,
alternator, and cooling fan, at standard conditions per SAE J1349 and DIN 6270B,
using No. 2-D fuel at 35 API gravity. Gross power is without cooling fan.
Specifications and design subject to change without notice. Wherever applicable, specifications are
in accordance with SAE standards. Except where otherwise noted, these specifications are based on
units with standard equipment, rollover protective structures, full fuel tanks, and 175-lb. (79 kg) opera-
tors; 450H/LT units with 97-in. (2464 mm) blade and 16-in. (406 mm) track shoes; 450H LGP unit with
124-in. (3150 mm) blade; 450H LGP and 550H LGP units with 24-in. (610 mm) track shoes; 550H LT
and 650H LT units with 105-in. (2667 mm) blade and 18-in. (457 mm) track shoes; 550H LGP and
650H LGP units with 128-in. (3251 mm) blade; and 650H LGP unit with 28-in. (711 mm) track shoes.
DKA450H Litho in U.S.A. (02-09)
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