John Deere 770A 770AH 772A 772AH Motor Graders Technical Manual TM1361

TM-1361 is the technical manual for the A-series 770 and 772 motor graders, including the AH versions. It's a revision of the earlier TM-1187 and covers repair across the whole machine, with detail on hydraulic pump rebuilds.

Fits

John Deere 770A, 770AH, 772A and 772AH motor graders. TM-1361, May-87, replaces TM-1187.

What this manual covers

It opens with general information and the index. The engine section covers specs and repair. The hydraulic section covers the pump housing, internal and external gears, bushings and seals, with exact bore depth tolerances for both early and later production pumps. The power train section covers the transmission and driveline, including the drive components specific to the AH models. Steering and brakes, and the electrical system, round it out. Each repair group starts with the specs and tools you need, so you can plan the job and order seals and bushings before the grader is out of service.

Who this manual is for

Road crews, contractors and townships still running these graders, and the mechanics who keep them going. The pump specs are particularly useful on a rebuild, because early and late pumps aren't measured the same way.

Table of contents

• General Information - Contents and Index
• Engine - Specifications and repair procedures
• Hydraulic System - Pump housing, gears, specifications (early and later production units)
• Power Train - Transmission and driveline repair, including AH all-wheel-drive variants
• Steering and Brakes - Service and repair procedures
• Electrical System - Wiring and component service

Check before you buy

Check whether your machine is an A or AH model, and check the production date of your hydraulic pump. Early and later units have different specs. The model designation is on the grader's serial plate. If you're unsure whether you have an A or AH machine, check it there before ordering drive parts.

PDF, English. You get the download link right after checkout. Sold by an independent seller, not affiliated with or endorsed by John Deere.