John Deere J DOZERS 850J User Manual
Page 21
Cylinders
850J / 850J LT / 850J WT / 850J WLT / 850J LGP
Heat-treated, chrome-plated, polished cylinder rods, hardened steel (replaceable bushings) pivot pins
Electrical
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 volt
Battery Capacity . . . . . . . . . . . . . . . . . . . . 950 CCA
Reserve Capacity . . . . . . . . . . . . . . . . . . . . 190 min .
Alternator Rating
Cab . . . . . . . . . . . . . . . . . . . . . . . . . . 80 amp
Canopy . . . . . . . . . . . . . . . . . . . . . . . 55 amp
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 total: grille mounted (2) and rear mounted (1), and rear reflectors (2)
Undercarriage
850J
850J LT
850J WT
850J WLT
850J LGP
Tracks . . . . . . . . . . . . . . . . . . . . . . . . . . . track frame with front and rear track guides and sprocket guard; John Deere Dura-Trax
TM
features deep-heat-treated, sealed, and lubricated track links and through-
hardened, sealed, and lubricated rollers for maximum wear resistance; sprockets are segmented; extreme-duty shoes are available (on some models) for severe applications
Blade Type . . . . . . . . . . . . . . . . . . . . . . . . Outside dozer
PAT
Outside dozer
PAT
PAT
Outside dozer
Track Gauge (standard) . . . . . . . . . . . . . . . 6 ft . 2 in . (1880 mm)
6 ft . 10 in . (2083 mm)
6 ft . 8 in . (2032 mm)
7 ft . 4 in . (2235 mm)
7 ft . 10 in .
7 ft . 2 in .
(2388 mm)
(2184 mm)
Grouser Width (closed center, single bar) . . . 24 in . (610 mm)
24 in . (610 mm)
30 in . (762 mm)
30 in . (762 mm)
36 in . (914 mm)
36 in . (914 mm)
Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . sealed and lubricated
sealed and lubricated
sealed and lubricated
sealed and lubricated
sealed and
sealed and
lubricated
lubricated
Shoes (each side) . . . . . . . . . . . . . . . . . . . 40
45
40
45
45
45
Track Rollers (single flange, each side) . . . 7
8
7
8
8
8
Track Length on Ground . . . . . . . . . . . . . . 9 ft . 1 in . (2769 mm)
10 ft . 9 in . (3284 mm)
9 ft . 1 in . (2769 mm)
10 ft . 9 in . (3284 mm)
10 ft . 9 in .
10 ft . 9 in .
(3284 mm)
(3284 mm)
Ground Contact Area . . . . . . . . . . . . . . . . . 5,232 sq . in . (33 755 cm
2
)
6,206 sq . in . (40 039 cm
2
)
6,540 sq . in . (42 193 cm
2
)
7,758 sq . in . (50 052 cm
2
)
9,310 sq . in .
9,310 sq . in .
(60 064 cm
2
)
(60 064 cm
2
)
Ground Pressure . . . . . . . . . . . . . . . . . . . . 7 .61 psi (52 .5 kPa)
6 .87 psi (47 .4 kPa)
6 .26 psi (43 .2 kPa)
5 .65 psi (39 .0 kPa)
4 .83 psi (33 .3 kPa) 4 .80 psi (33 .1 kPa)
Track Pitch . . . . . . . . . . . . . . . . . . . . . . . . 8 in . (203 mm)
8 in . (203 mm)
8 in . (203 mm)
8 in . (203 mm)
8 in . (203 mm)
8 in . (203 mm)
Oscillation at Front Roller . . . . . . . . . . . . . ±4 .5 in . (±114 mm)
±6 .6 in . (±168 mm)
±4 .5 in . (±114 mm)
±6 .5 in . (±166 .5 mm)
±6 .6 in .
±6 .6 in .
(±168 mm)
(±168 mm)
Serviceability
Refill Capacities
Blade Type . . . . . . . . . . . . . . . . . . . . . . . . Outside dozer
PAT
Outside dozer
PAT
PAT
Outside dozer
Fuel Tank with Lockable Cap . . . . . . . 98 gal . (371 L)
98 gal . (371 L)
98 gal . (371 L)
98 gal . (371 L)
98 gal . (371 L)
98 gal . (371 L)
Cooling System with Recovery Tank . . . 9 .2 gal . (35 L)
9 .2 gal . (35 L)
9 .2 gal . (35 L)
9 .2 gal . (35 L)
9 .2 gal . (35 L)
9 .2 gal . (35 L)
Engine Oil with Filter . . . . . . . . . . . . . 7 gal . (26 L)
7 gal . (26 L)
7 gal . (26 L)
7 gal . (26 L)
7 gal . (26 L)
7 gal . (26 L)
Transmission Reservoir with Filter . . . 28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
Hydraulic Reservoir and Filter . . . . . . 28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
28 gal . (106 L)
Operating Weights
Base weights were computed for units with standard equipment, rollover protective structures, full fuel tanks, and 175-lb. (79 kg) operators.
Blade Type . . . . . . . . . . . . . . . . . . . . . . . . Outside dozer
PAT
Outside dozer
PAT
PAT
Outside dozer
Base Weight . . . . . . . . . . . . . . . . . . . 40,165 lb . (18 220 kg)
43,015 lb . (19 510 kg)
41,285 lb . (18 725 kg)
44,225 lb . (20 060 kg)
45,375 lb .
45,075 lb .
(20 580 kg)
(20 445 kg)
Refer to the Attachment Guide or see your dealer for details regarding Mechanical Angle blades for the 850J LT .
Blade, C-Frame, and Push-Beam Weights
Includes straight end bits.
Blade Type . . . . . . . . . . . . . . . . . . . . . . . . Outside dozer
PAT
Outside dozer
PAT
PAT
Outside dozer
PAT . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
2,758 lb . (1251 kg)*
N/A
2,932 lb . (1330 kg)*
3,080 lb .
N/A
(1397 kg)*
Semi-U . . . . . . . . . . . . . . . . . . . . . . . 2,923 lb . (1326 kg)*
N/A
3,110 lb . (1411 kg)*
N/A
N/A
3,225 lb .
(1463 kg)*
Straight . . . . . . . . . . . . . . . . . . . . . . . N/A
N/A
N/A
N/A
N/A
2,846 lb .
(1291 kg)
Push Beam Assemblies for Straight or
Semi-U Blades (without blade) . . . . . . 3,687 lb . (1672 kg)*
N/A
3,757 lb . (1704 kg)*
N/A
N/A
4,196 lb .
(1903 kg)
PAT Dozer C-Frame Assemblies Includ-
ing Cylinder (without blade) . . . . . . . . N/A
3,631 lb . (1647 kg)*
N/A
3,631 lb . (1647 kg)*
3,631 lb .
N/A
(1647 kg)*
*Included in SAE operating weight .
Refer to the Attachment Guide or see your dealer for details regarding Mechanical Angle blades for the 850J LT .
Blade Capacities
Blade Type . . . . . . . . . . . . . . . . . . . . . . . . Outside dozer
PAT
Outside dozer
PAT
PAT
Outside dozer
PAT . . . . . . . . . . . . . . . . . . . . . . . . . . N/A
146 in . (3708 mm)
N/A
158 in . (4013 mm)
168 in . (4267 mm) N/A
5 .15 cu . yd . (3 .94 m
3
)
5 .57 cu . yd . (4 .26 m
3
)
5 .87 cu . yd .
(4 .49 m
3
)
Semi-U . . . . . . . . . . . . . . . . . . . . . . . 128 in . (3251 mm)
N/A
140 in . (3556 mm)
N/A
N/A
152 in . (3861 mm)
7 .29 cu . yd . (5 .57 m
3
)
7 .62 cu . yd . (5 .82 m
3
)
7 .80 cu . yd .
(5 .96 m
3
)
Straight . . . . . . . . . . . . . . . . . . . . . . . N/A
N/A
N/A
N/A
N/A
154 in . (3912 mm)
5 .35 cu . yd .
(4 .09 m
3
)
Refer to the Attachment Guide or see your dealer for details regarding Mechanical Angle blades for the 850J LT .