A-Series 770A Motor Grader from John Deere

Deere Motor Graders, road grader, john deere 770a grader

John Deere

A-Series 770A Motor Grader from John Deere

1x3in.(25x76mm). Ripper (Special Equipment): 8 ft. (2.44 m) cut width, parallelogram linkage, 2 manual shank vertical positions. Numberofshankpockets.

770A

Non-Current Motor Graders | Construction | John Deere US

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770A MOTOR GRADER

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ENGINE PERFORMANCE

Nm I Ib-ft w 651 480 ::J
~ 597 440
0 t- 542 400 t-
~ 488 360
Ibl
g/kWhI hph

TORQUE
hp kW 160 119 a:
w
~ 140 104 "-
120 89 tw100 75 Z 80 I 60

-' 274 AS FUEL CONSUMPTION ~243 AO u. 213 "35
L
1
1000 1400 1800 2200
ENGINE"SPEED-RPM

Model shown may Include options

FEATURES
150 SAE net hp (112 kW) 12-ft. (3.65 m) moldboard with 0.62 x 6 in. (16 x 152 mm) through-hardened Dura-Max@cutting edge; 13- and 14-ft. (3.95 and 4.25 m) moldboards and 2-ft. (610 mm) extensions available Power shift transmission; 8 speeds forward, 4 reverse Articulated frame steering Differential lock-unlock
22.ft. (6.70 m) turning radius All-hydraulic control of blade and machine functions
Closed-centerhydraulicsystem with operational no-leak, drift-free poppet valves Pushbutton control
Hydraulically controlled, 7-position lift arms let you position blade for 90-degree bank cuts, left or right, in approximately one minute, without leaving the seat Oscillating front axle and rear tandem Hydraulic front-wheel lean Rolloverprotectivestructure (ROPS) w/cab

ADD VERSATILITY WITH:: Scarifier
Rear-mounted ripper Snow plow and wings Bulldozer Automatic blade control

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770A MOTOR GRADER SPECIFICATIONS
(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 a unit with 13.00-24, 12-PR, tubeless tires with 8 in. (203 mm) rims, 12-ft. (3.65 m) moldboard with 6-in. (152 mm) cutting edge, and standard equipment. Weights include lubricants, coolants, full fuel tank and 175 lb. (79 kg) operator.)

Rated Power @2200 rpm:
Net Gross

SAE
150hp(112kW) 160hp(119kW)

DIN 70 020 112 kW

Net engine power is with standard equipment including air cleaner, exhaust system, alter-
nator, and cooling fan, at standard conditions per SAE J1349 and DIN 70020, using No. 2D fuel @35 API gravity. No derating is required up to 10,000 ft. (3050 m) altitude. Gross power is without cooling fan.

Engine: John Deere 6-466A

Type. . . . . . . . . 4-stroke cycle, turbocharged and intercooled diesel

Bore and stroke. . . . . . . . . . . . . . . .4.56 x 4.75 in. (116 x 121 mm)

No.ofcylinders

6

Displacement

466cu.in.(7.638L)

Compression ratio

14.9t01

Maximum net torque @1300 rpm . . . . . 4651b-ft(630Nm)(64kg-m)

Lubrication. . . . . . . . . . . . . . . . . . . Pressure system w/full-flow filter

Cooling fan

Suctiontype

Aspirated air cleaner w/restriction indicator. . . . . . . . . . . . . . . . Dry

Electricasl ystem. . . . . . . . . . . . . . . . . . 25 volt w/42 amp alternator

Batteries (two 12-volt)

Reserve capacity: 360 minutes

Transmission. . . . . . . . . . . . . . . . . . . . Direct drive, full power shift with planetary gear reductions. Foot inching pedal.

Travel Speeds (2200 engine rpm, no tire slip, 14.00-24 tires)

Shift Lever Position
1 2 3 4 5 6 7 8

Forward

mph 2.3

km/h 3.7

3.3

5.3

5.2

8.4

6.7

10.8

8.8

14.2

11.5

18.5

14.6 23.5

25.1

40.4

Reverse

mph km/h

3.0

4.8

4.2

6.8

6.6

10.6

8.6

13.8

Differential Lock. . . . . . . . . . Foot-operated, hydraulically actuated

Blade Lift Mechanism: Control

Dual-lever,hydraulic

Lift Arms: Nodular cast iron Positions Control

7 Hydraulic,footoperated

Circle:

Fabricated steel angle construction

Circle diameter

60in(1.5m)

Rotation

360deg.

Drive. . . . . . . . . . . . . . . Hydraulic motor and worm gear w/positive

position lock

Sideshift,right

32.0in.(813mm)

left

33.5in.(851mm)

Drawbar . . Welded box section, 3.5 x 7 x 0.5 in. (89 x 178 x 13 mm) wall, w/ball and socket draft connection

Frame:

Rearmainframe. . . . . . . . . . . . . . . . . . . . Welded box section from

articulation joint to mainframe arch

Width, minimum

12.03in.(306mm)

Height,minimum

11.95in.(304mm)

Thickness, sides

0.47in.(12mm)

top and bottom (min.) ... . . . . . . . . . . . 0.87 in. (22 mm)

Weightperfl., minimum

.120 lb. (179kg/m)

Minimum vertical section modulus. . . . . . . . . . . . . . . . . . . . 143 in3

. (2343 cm3)
Frontmainframe. . . . . . . . . . . . . . . . . . . Welded box section from
mainframe arch to front hood

Width Height, minimum

10in.(255mm) 13in.(330mm)

Thickness,minimum Weight per ft., minimum Minimum vertical section modulus.

0.63in.(16mm) .110Ib. (164kg/m) . . . . . . . . . . . . . . . . . . . 118 in3

(1935 cm3)

Rear Drive. . . . . . . . . . . . . . . . . . . .. Inboard planetary final drives with heat-treated, splined steel torque shafts. Oscillating welded con-
struction tandems; nodular cast sprockets driving 2 in. (51 mm) pitch roller chain in oil bath.

Tires:
13.00-24,12 PR, G2, standard 14.00-24, 12 PR, G2 17.5-25,12 PR, L2

Front Axle: Fabricated steel box frame with steel spindles

Dimensions:

Total oscillation

30deg.

Wheel lean range (either direction) . . . . . . . . . . . . . . . . . . . . 20 deg.

Tire

Wheel Tread

Size

Front

Rear

Width

Front

Rear

Ground Clearance (Front Axle)

Steering: Front. . . . . . . . . . . . . . . . . . . Full hydraulic power system. Steering

13.00-24 76.60 in. 79.61 in. 8" rim (1.94m) (2.02m)
(203 mm)

7ft. 10 in. (2.39 m)

7ft. 10 in. (2.39m)

22 in. (559 mm)

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capabilities without engine power Rear. . . . . . . . . . . . . . . . .. Hydraulically articulated frame steering
(25 deg. left or right)

14.00-24 76.60 in. 10" rim (1.94m) (254 mm)
17.5-25 79.36 in.

79.61 in. (2.02m)
82.37 in.

8 ft. (2.44m)
8 ft. 6 in.

8 ft. (2.44 m)
8ft. 6 in.

22.5 in. (572 mm)
23.2 in.

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Minimum turning radius

22fl.(6.7m)

14" rim (2.01 m) (2.09m) (356 mm)

(2.59m)

(2.59m)

(589 mm)

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Brakes:

Service. . . . . . . . . . . . . . . . . . . . . . . . . Foot-operated, hydraulically actuated, wet-disk, effective on 4 tandem wheels

Height to top of steering wheel. . . . . . . . . . . . . . . 7 fl. 6 in. (2.29 m)

Capacities:

U.S.

Liters

ft ~

Parking. . . . . . . . . . . . . . . . . . Foot-operated, mechanical, dry-disk, effective on 4 tandem wheels

Fueltank Cooling system

70gal.

265

~

7gal.

26.5

Hydraulic System:
Closed-center w/pressure-controlled 4.0 cu. in. (65 cm3) variabledisplacement pump. . . . . . . . 36 gpm (2.27 Us) @2200 engine rpm

Moldboard. . . . . . . . . . . . . . . . . . Wear-resistanthigh-carbon steel

Length

12fl.(3.65m)

Engine lubrication, includingfilter
Transmission and
hydraulicsystem Tandem housings (each) Worm gearbox

20ql.
31gal. 5gal. 4ql.

18.9
117.3 18.9 3.8

Height Thickness

24in.(610mm) 0.88in.(22mm)

Scarifier (Special Equipment): V-type for 4 ft. (1.22 m) cut with 3 manual pitch positions.

Cutting Edge: Dura-Max@th' rough-hardened curved steel Thicknessand width. . . . . . . . . . . . . . . .0.62 x 6 in. (16 x 152 mm)

Number of teeth
Liftaboveground Penetration

5standard,90ptional
24in.(610mm) 13.7in.(348mm)

Blade Range:

Shank size

1x3in.(25x76mm)

Liftaboveground Bladeside shift:
Right or left Shoulderreach outside wheels (frame straight):
Right Left Pitch at ground line

17in.(432mm)
26.9in.(683mm)
88.4in.(2.25m) 89.6in.(2.28m) 44deg.forward
10 deg. back

Ripper (Special Equipment): 8 ft. (2.44 m) cut width, parallelogram linkage, 2 manual shank vertical positions

Numberofshankpockets

5

Numberofshanks

3

Liftaboveground

14.5in.(368mm)

Penetration

14in.(356mm)

Shank size

2x5in.(51x127mm)

Lift above ground (shank in upper position)

23.5 in. (597 mm)

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770A MOTOR GRADER SPECIFICATIONS

Additional Standard Equipment:

Gauges: Airfilterindicator

Horn Hourmeter

Engine oilpressure
Fuel level Hydraulicfunction return

Lights,stop and tail
Lights, driving Precleaner

filterindicator

Reverse warningalarm

Transmissionclutch pressure RaPS cab wlseat belt, frontwiper Transmissionfilterindicator and dome light

Transmissionlube pressure Seat, cushioned vinyl Transmissiontemperature Turnsignals Water temperature

SAE Operating Weight Standard equipment. . . .
Standard equipment and scarifier .........
Standard equipment, scarifier and ripper. . . .

On Front Wheels 8548 lb.
(3877 kg) 9859 lb.
(4472 kg) 9091 lb.
(4124 kg)

On Rear Wheels
21,712 lb. (9848 kg) 21,516 lb. (9759 kg) 24,758 lb. (11 230 kg)

Total
30,260 lb. (13726 kg) 31,375 lb. (14231 kg) 33,849 lb. (15354 kg)

Optional or Special Equipment with Weights: (Addthese weights to SAEStandard Equipmentoperating weights to obtain total operating weights.)

Accelerator-decelerator
Air conditioner w/heavy-duty alternator
Automatic blade control Articulation indicator
Batteries, heavy-duty w/620-minute reserve capacity
Blade, front bulldozer wlfloat control Bottom guard, heavy-duty
wlrear hitch
Bottom guard, regular Cold-weather starting aid Dura-Max through-hardened
cutting edge, 3/. x 8 in. (19 x 203 mm) Engine disconnect, cold weather Engine side shields Fan, defroster Heater, cab, 19,000 BTU (5.6 kW) Heater, cab, 38,000 BTU (11.1 kW) Heater, cab, 40,000 BTU (11.7 kW) Heater coolant
Heater, roof-mounted, 25,000 BTU (7.3 kW) (add to air conditioner)
Hydraulic pump, pressure controlled variable displacement, 6.0 cu. in. (98 cm3), 52.4 gpm (3.3 Us)
Lights, blade Lights, work, 2 fronU2 rear floods Mat, floor Mirror, outside rear view, convex, outside Mirrors, outside rear view, convex,
both sides
Mirror, outside rear view, flat, one side Mirror, outside, rear view, flat, both sides Moldboards:
12-ft. (3.66 m) wf3l. x 8 in (19 x 203 mm) through-hardened Dura-Max cutting edge
13-ft. (3.96 m) w/5/ax 6 in. (16 x 152 mm) through-hardened Dura-Max cutting edge
13-ft. (3.96 m) wf3l. x 8 in. (19 x 203 mm) through-hardened Dura-Max cutting edge
14-ft. (4.27 m) wf3l. x 8 in. (19 x 203 mm) through-hardened Dura-Max cutting edge
140ft. (4.27 m) w/5fax 6 in. (16 x 152 mm) through-hardened Dura-Max cutting edge

lb. 7
187 350
6
101 1618
459 160
3 8.5 Iblft 30 60
4 16 31 31
1
17

kg 3
85 159
3
46 734
208 73 1 (13
kg/m) 14 27 2 7 14 14 0.5
8

50

23

4

2

12

5

9

4

6

3

12

5

6

3

12

5

106

48

60

27

116

53

146

66

155

70

Moldboard extensions, 2-ft. (610 mm), right or left (less cutting edge)
Moldboard float control
Overlay end bits (1 pair), 6 in. (152 mm) Overlay end bits (1 pair), 8 in. (203 mm) Rear hitch Rims:
10 in. (254 mm) for 14.00-24tires 14 in. (356 mm) for 17.50-25tires Ripper, rear mounted with hitch
RaPS canopy wlseat belt and instrument panel cover
Scarifier, regular w/five teeth 1 x 3 in. (25 x 76 mm)
Scarifier float control
Seat belt, 3-in. (76 mm) Seat, deluxe suspension,
cloth covered
Seat, deluxe suspension, vinyl covered
Sound suppression package (includes bottom guard)
Sound suppression package (for use w/ripper) 14.00-24, 12 PR, G2
17.5-25, 12 PR, L2 Toolbox Winter door cam for cab
Wiper, rear windshield

lb.
220 14 62 77 61
472 674 2474
-447
1115 9 3
111
58
542
295 270 528
11 4 4

kg
100 6
28 35 28
214 306 1123
-203
506 4 1
50
26
246
134 122 239
5 2 2

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770A MOTOR GRADER DIMENSIONS
1
10ft. 6 in. (3.20m)

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19 ft. 7 in. (5.97 m)
27 ft. 9.5 in. (8.47 m)-
30 fl. 2 in. (9.20 m)32 ft. 6 in. (9.90 m)

8ft. 11 in. (2.72m)

r
9 ft. 7 in. (2.92m)
,
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