John Deere JD302-A Loader and Backhoe Loader Technical Manual TM-1090

TM-1090 is the December 1978 technical manual for the JD302-A. The hydraulic section is the most detailed part, which makes sense on a machine that spends its working life on loader and backhoe hydraulics.

Fits

John Deere JD302-A loader and backhoe loader, with 9250 or 9250-A backhoe control valve. TM-1090, Dec-78.

What this manual covers

It covers general specs, predelivery and after-sale service, and lubrication, then the engine with removal and installation, basic engine, lubrication and cooling. The hydraulic section covers the transmission pump, main hydraulic pump, reverser clutch control valve, pressure control valve, steering valve, brake valve and loader control valve. It has separate groups for the 9250 and 9250-A backhoe control valves, plus the selective control valve. Driveline, chassis and electrical, including lighting, charging, starting and instruments, are covered too. It's a practical book for an owner or shop keeping a JD302-A working on a farm or small construction job. The hydraulic section in particular helps with weak lift, a slow backhoe or a leaking valve, which are the most common complaints on these machines.

Table of contents

• Section 10 - General - specifications, predelivery, lubrication
• Section 20 - Engine - removal, basic engine, lubrication, cooling
• Section 50 - Hydraulic System - pumps and valves, including both 9250 and 9250-A backhoe control valve configurations
• Steering Valve - Service and adjustment
• Brake Valve - Service and adjustment
• Loader Control Valve - Service and adjustment

Check before you buy

Check which backhoe control valve your machine has, 9250 or 9250-A, before following valve procedures.

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