John Deere 400 Hydrostatic Tractor Service Manual

Complete service and maintenance information for the John Deere 400 Hydrostatic Tractor. Includes detailed diagrams and procedures. PN SM2103

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Document Details

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Document Number / Seller:
29363 / Andrew Lopez
File Size:
96.27 MB
File Type:
PDF
Language:
English
Pages:
396
Printable:
Yes
Category:
Lawn and Garden Tractor
Last updated / verified
May 28, 2025

Models Covered & Key Technical Specifications

John Deere 400 Hydrostatic Tractor Manual: John Deere 400 Hydrostatic Tractor (SM-2103) - 1982 Service-Portfolio

Service-Level: SM2103 // Application-Range: tractor / hydrostatic Logic // Product-Line: John Deere 400 Hydrostatic Tractor

Service-Nexus Value Architecture
Documented 53.7 cu. in. Displacement
Calibrated 19.9 hp Horsepower
Authorized 3400-3500 rpm Idle Speed
Core 4.5 U.S. Gallons Fuel Capacity
Rated 15 Amps Charging Capacity
Principal 975 lbs. Curb Weight

Professional Workshop Service Manual & Technical Specifications

John Deere 400 Hydrostatic Tractor Manual: John Deere 400 Hydrostatic Tractor (SM-2103) - 1982 Service-Portfolio

Service-Level: SM2103 // Application-Range: tractor / hydrostatic Logic // Product-Line: John Deere 400 Hydrostatic Tractor

Service-Nexus Value Architecture
Documented 53.7 cu. in. Displacement
Calibrated 19.9 hp Horsepower
Authorized 3400-3500 rpm Idle Speed
Core 4.5 U.S. Gallons Fuel Capacity
Rated 15 Amps Charging Capacity
Principal 975 lbs. Curb Weight

Integrated service sections encompass engine tune-up, adjustments, fuel system, governor, and internal components. This structured manual provides comprehensive guidance.

Engine Tune-Up Procedures

This manual outlines engine tune-up steps, covering air intake, valve clearance, compression testing, carbon cleaning, breaker points, spark plugs, timing, carburetor adjustments, and oil changes.

Tractor Adjustments and Maintenance

Detailed tractor adjustments are provided, including transmission fluid checks, lubrication, brake adjustment, hydrostatic linkage, steering, hydraulic system testing, wiring, belts, and tire pressure.

Fuel System and Governor Operation

Information on the fuel system, including carburetor principles, anti-dieseling solenoid function, and governor operation, is detailed to ensure optimal performance.

Internal Components and Engine Lubrication

Guidance on inspecting and servicing internal engine components such as pistons, crankshafts, camshafts, and bearings is included, along with engine lubrication system details.

FAQ

What is the **exact** testing parameters for engine compression? keyboard_arrow_down

110 to 120 psi (752 to 828 kPa) indicates good compression for the Kohler K532QS engine when checked with a JDM-59 compression gauge at wide-open throttle and choke.

Specify the **applicable** lubrication requirements for the transmission. keyboard_arrow_down

11 U.S. pints (5.17 I) of JD All-Weather Hydrostatic Fluid or equivalent Type "F" Automotive Automatic Transmission Fluid is required for the transmission, including the filter.

Calculate the **specific** diagnostic procedures for a low oil pressure issue. keyboard_arrow_down

40 to 50 psi should be read on the pressure gauge at idle speed; if incorrect, adjust the oil pressure adjusting screw. If still incorrect, the engine may need disassembly to determine the cause, inspecting the pressure relief valve, oil pump and screen, sleeve bearings, and crankshaft.

What values **designated** for valve clearance requirements? keyboard_arrow_down

0.008 to 0.010 inch (0.20 to 0.25 mm) for the intake valve and 0.017 to 0.020 inch (0.43 to 0.50 mm) for the exhaust valve, measured cold.

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Reviews (2)

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I found this manual very helpful for my tractor repairs. The diagrams are clear and easy to follow. Customer support was fantastic; they responded quickly to my questions!
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This service manual is a lifesaver! It covers everything you need to know in detail. The download process was smooth and I received the link in my email quickly. Highly recommend!