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John Deere 770A

Series: John Deere Motor Grader

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The John Deere 770A belongs to the John Deere Motor Grader series. The engine delivers 152.1 hp, has 6 cylinders, with a displacement of 7,636.4 cm³. Rated speed is 2,200 rpm. The unladen weight is 15,353.6 kg. The wheelbase measures 5,971 mm. Ground clearance is 579.1 mm. The tank holds 265 litres. Maximum torque is reached at 1,300 rpm. The hydraulic tank holds 117.3 litres. The cooling system holds 26.9 litres. The electrical system runs on 24 V. The engine fitted is the 6-466A. Tyre size: 14,00-25. The John Deere Motor Grader series covers 35 models. Rated output within it ranges from 84.2 to 289 hp; the 770A sits in the lower part of that range with 152.1 hp. Its immediate neighbours are the JD770 below it with 144 hp and the 770B above it with 157.1 hp. 2153 John Deere models across 96 series are on record. The model is listed under Motor graders. 17 verified figures from 1 source are on file.

Technical data

Engine

Engine model6-466Acorrect
Power152.1 hpcorrect
Rated speed2,200 rpmcorrect
Speed at max. torque1,300 rpmcorrect
Cylinders6correct
Displacement7,636.4 cm³correct
AspirationTurbocharged with Intercoolercorrect
Coolant capacity26.9 lcorrect

Dimensions and weights

Length8,470.4correct
Wheelbase5,971correct
Ground clearance579.1correct
Unladen weight15,353.6 kgcorrect

Drivetrain and chassis

Gearbox typePower Shiftcorrect
Tyre size14.00-25correct
System voltage24 Vcorrect

Working data

Hydraulic oil capacity117.3 lcorrect
Fuel tank capacity265 lcorrect

Where this model stands

Power-to-weight ratio: 7.3 kW/t (112 kW / 15.4 t)

Stronger than 34% of the motor graders in the register — out of 186 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the John Deere 770A have?

The John Deere 770A delivers 152 hp.

How much does the John Deere 770A weigh?

The unladen weight is 15,354 kg.

What engine does the John Deere 770A have?

6 cylinders, 7,636 cm³ displacement.

What to check before buying

  • Check the hour meter against the service records — a replaced instrument is the most common gap.
  • Compare the data plate and chassis number with the papers.
  • Check the weights in the papers against the figures here — attachments change them.
  • Load the hydraulics and watch for sag.
  • Ask about parts availability for this build year — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 17 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

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Other models in this series

Sources: [1]

Grader in 3D section

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