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

This John Deere factory technical manual, P/N TM1747, covers 240 and 250 skid steer loaders, serial number 100100 and higher, with the 3029D and 3029T diesel engines respectively. The November 2000 issue replaces the July 1999 edition.

Text Search, Bookmarks, and Diagram Viewing

Finding information: PDF text is searchable, and embedded bookmarks cover systems and individual procedures, although some bookmark destinations do not resolve. Small wire codes, connector identifiers, and hydraulic schematic labels require zooming.

Electrical-page limitation: Four High-Flow and lighting operation/schematic pages contain placeholders. Those circuits are illustrated in the Main Schematic, and their diagnosis and test-point sections are included.

A single printable, 490-page PDF includes two cover/title pages, 15 intentionally blank pages, and the four placeholder pages.

Engine, Hydrostatic Drive, and Loader Repair

Selected coverage: These highlights show a selection of the manual’s contents rather than a complete table of contents. Additional topics include cooling-system deaeration and optional block-heater service.

• Engine repair: Oil-pressure, blow-by, and compression tests; engine removal; and step-by-step internal repair of the cylinder head, valves, liners, pistons, connecting rods, crankshaft, and timing gears.

• Fuel system and turbocharger: Stanadyne DB4 pump removal and installation, injector cleaning and testing, fuel-supply checks and bleeding, plus 3029T turbocharger boost, bearing, prelubrication, and break-in coverage.

• Hydrostatic drive and chain cases: Charge and hydrostatic pressure/flow tests, wheel-speed and case-drain checks, tandem-pump and GEROLER motor repair, startup after replacement, and chain-case and axle service.

• Working hydraulics: Standard-flow and optional High-Flow pump and valve repair; boom/bucket lockout, drift, and lift-check tests; self-leveling adjustment; and boom and bucket cylinder rebuilding.

• Steering and brakes: Single- and dual-centering-plate service; neutral, detent, tracking, auxiliary, and hands-only handle adjustments; brake diagnosis, disassembly, inspection, assembly, burnishing, and actuator-cylinder service.

• Electrical diagnosis: Main schematic, harness layouts, component locations, troubleshooting charts, and circuit-specific test points for cranking, charging, fuel/preheat, lockouts, gauges, warning lights, and optional equipment.

• Machine structure and cab equipment: ROPS raising and removal, boom locks and safe blocking, boom-link and boom removal, Quik-Tatch hitch repair, and optional cab-heater, door, wiper, and washer work.

Deere states that this manual is written for an experienced technician. Hydraulic testing, electrical diagnosis, heavy-component handling, and dedicated service tools assume established shop skills.

Production Changes and Control Configurations

Center manifolds: Drawings and test-port locations distinguish early machines through 240 PIN KV0240A142337 and 250 PIN KV0250A152709 from later machines. Earlier machines updated under PIP 00KV010 use the late/converted layout.

Other production changes: Wheel-speed criteria change from 240 serial 242580 and 250 serial 252794; the 240 engine rating changes from serial 240853. These distinctions help match test specifications and component layouts to the machine being serviced.

Control coverage separates 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 equipment are also treated.

Engine, Fuel, and Hydraulic Service Details

Engine coverage extends to lubrication-system repair, water-pump disassembly and assembly, radiator service, and starter and alternator repair. Idle, injection-timing, and valve-clearance adjustments accompany the diagnostic procedures.

Dynamic injection timing is matched to the installed pump part number. Injector coverage includes nozzle disassembly and opening-pressure adjustment. The engine repair section also distinguishes straight pin-end connecting rods in the 3029D from tapered pin-end rods in the 3029T.

The hydraulic section covers the Model 9110 three-spool open-center control valve, including disassembly, inspection, and assembly. Final-drive work includes drive-chain tensioning, axle-housing disassembly, and chain and sprocket replacement.

Electrical Fault Tracing and Workshop References

The electrical test-point charts connect symptoms with expected readings and follow-up checks. For a boom/bucket lockout complaint, they allow a technician to trace switches, wiring, connectors, and solenoids before moving to hydraulic diagnosis.

Visual references include the Main Schematic, Boom and Bucket Lockout and Park Brake Circuit Schematic, Hydrostatic System Schematic, and Hydraulic System Schematic. Early/late Center Manifold Exploded Views and the Control Valve Cross Section clarify component arrangements. Assembly views also support engine, starter, alternator, brake, pump, and motor work.

Reference data include component torque specifications, fluid capacities, hydraulic pressure and flow criteria, wear limits, clearances, adjustment data, and electrical test values.

Diagnostic tool callouts include the JT0KV12444 Remote Start Box, D01074AA In-Line Hydraulic Tester, and JT05719 Photo Tachometer. Repair tooling includes the JDG666 Spanner Wrench and KCD10001 Cylinder Liner Puller.

Specialist Work and Repair Cautions

Injection-pump repair or bench adjustment is assigned to an authorized Stanadyne workshop. Fast-idle adjustment requires an authorized EPA-certified service center, while internal turbocharger service is referred to an authorized workshop.

The cylinder-head procedure identifies the risk of damaging the head gasket’s Viton oil-passage O-ring during positioning without guide studs. The injector section warns that screwdriver removal can irreparably damage the nozzles.

Raised-boom and hydraulic work requires the manual’s boom-lock, machine-blocking, pressure-relief, and remote-start precautions.

A Preview of Oil-Pressure and Case-Drain Test Data

For the engine oil-pressure check at 93°C (200°F), minimum pressure is 279 kPa (40 psi) at 1000 rpm and 350 kPa (50 psi) at rated speed. These limits accompany the lubrication-system condition check.

The hydrostatic case-drain pressure test specifies a maximum of 172 kPa (25 psi), with hydraulic oil at 43°C (110°F), to assess excessive pump-case pressure.