2000 John Deere 240 / 250 Skid Steer Technical Manual (P/N TM1747)

John Deere TM1747 is the factory technical manual for 240 and 250 skid steer loaders, serial number 100100 and higher. This November 2000 issue replaces TM1747 (July 1999) and is supplied as a 490-page PDF. It assigns the 3029D diesel to the 240 and the 3029T diesel to the 250. Deere states that the manual is written for an experienced technician; its hydraulic test equipment, electrical diagnostics, lifting requirements, and dedicated service tools assume established shop skills.

• Engine repair: Covers oil-pressure, blow-by, compression, and fuel-supply testing; idle, injection-timing, and valve-clearance adjustments; engine removal; and internal work on the cylinder head, valves, liners, pistons, connecting rods, crankshaft, timing gears, lubrication system, cooling system, starter, and alternator.
• Fuel system and 3029T turbocharger: Details Stanadyne DB4 pump removal and installation, pump-part-number-specific dynamic timing, injector cleaning and testing, nozzle disassembly and adjustment, fuel-system bleeding, turbo boost and bearing checks, prelubrication, and break-in.
• Hydrostatic drive and chain cases: Includes charge-pump and hydrostatic pressure/flow tests, wheel-speed and case-drain checks, tandem pump disassembly and inspection, GEROLER motor repair, post-replacement startup, drive-chain tensioning, axle-housing service, and chain/sprocket replacement.
• Working hydraulics: Covers standard-flow and optional High-Flow systems, the Model 9110 three-spool open-center control valve, boom and bucket lockout solenoids, optional self-leveling, drift and lift checks, relief testing, pump and valve repair, and boom/bucket cylinder rebuilding.
• Steering and brakes: Separates single- and dual-centering-plate steering, with neutral, detent, tracking, auxiliary-control, and hands-only handle adjustments. Brake coverage runs from diagnosis through removal, disassembly, inspection, assembly, burnishing, and actuator-cylinder service.
• Electrical diagnosis: Provides the main schematic, harness layouts, component locations, troubleshooting charts, and circuit-by-circuit test points for cranking, fuel/preheat, boom/bucket lockout, park brake, gauges, warning lights, High-Flow, lighting, and optional cab equipment.
• Machine structure and equipment: Documents ROPS raising and removal, boom-lock service, safe blocking, boom-link and boom removal, Quik-Tatch hitch repair, plus optional cab-heater, door, wiper, and washer work.

Configuration Details That Affect Service

The hydrostatic section separates the center-manifold layouts at 240 PIN KV0240A142337 and 250 PIN KV0250A152709; earlier machines updated under PIP 00KV010 use the late/converted layout. Wheel-speed specifications also change after 240 serial 242579 and 250 serial 252793, while the 240 engine rating changes at serial 240853. Control coverage distinguishes hand/foot from hands-only machines and addresses the optional 8-button handle, High-Flow hydraulics, self-leveling, cab heater/defroster, backup alarm, dual flashers, and wiper/washer.

Schematics, Specifications, and Tooling

Named visual references include the Main Electrical Schematic, Boom and Bucket Lockout and Park Brake Circuit Schematic, Hydrostatic System Schematic, Hydraulic System Schematic, early/late Center Manifold Exploded Views, and the Control Valve Cross Section. Assembly views for the engine, starter, alternator, brake, pumps, and motors support the repair sections. Specification coverage includes component torque data, fluid capacities, hydraulic pressure and flow criteria, wear limits, clearances, adjustment data, and electrical test values.

Service-tool callouts identify the JT0KV12444 Remote Start Box, D01074AA In-Line Hydraulic Tester, JT05719 Photo Tachometer, JDG666 Spanner Wrench, and engine tools such as the KCD10001 Cylinder Liner Puller.

Repair Cautions and Scope

The cylinder-head procedure calls for guide studs because the head gasket's Viton oil-passage O-ring can be damaged while the head is positioned. The injector section also warns that screwdriver removal can irreparably damage the nozzles.

Internal injection-pump repair or bench adjustment is assigned to an authorized Stanadyne workshop, and internal turbocharger service is referred to an authorized workshop; the manual instead covers removal, installation, external testing, timing, prelubrication, and related checks. For raised-boom or hydraulic work, follow the manual's boom-lock, machine-blocking, pressure-relief, and remote-start precautions before disconnecting lines or working around moving components.