John Deere 38, 48 and 54-Inch Walk-Behind Mower Technical Manual

This comprehensive repair manual covers John Deere 38, 48, and 54-inch walk-behind mowers, detailing engine repair, fuel systems, and electrical components. Ref: TM1488

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Document Details

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Document Number / Seller:
29009 / Jerry Jackson
File Size:
22.04 MB
File Type:
PDF
Language:
English
Pages:
451
Printable:
Yes
Category:
Mower
Last updated / verified
Aug 3, 2025

Models Covered & Key Technical Specifications

John Deere 38, 48 and 54-Inch Commercial Walk-Behind Mower Technical Manual

This manual provides comprehensive coverage for John Deere 38, 48, and 54-inch walk-behind mower models. It includes detailed information on repair procedures, troubleshooting, and specifications for various systems.

Mower Specifications Overview

  • Published Format: This manual is presented in a user-friendly format for technicians.
  • Specific Engine Type: Features "K" Series FC400V, FC420V, or FC540V engines for robust operation Topology.
  • Approved Cooling Method: Utilizes air cooling to manage engine temperatures efficiently Standards.
  • Reference Fuel Delivery: Employs a fuel pump system for consistent fuel supply Protocol.
  • Established Drive System: Features a 5-speed transaxle with a wet disc clutch for durability Margin.
  • Authorized Braking System: Incorporates a turn/brake lever system for precise control Bounds.

Professional Workshop Service Manual & Technical Specifications

John Deere 38, 48 and 54-Inch Commercial Walk-Behind Mower Technical Manual: John Deere Technical Manual for 38, 48 and 54-Inch Walk-Behind Mowers Engineering-Archive

Technical-Domain: All Models // Product-Line: Commercial Walk-Behind Mowers / FC400V, FC420V, FC540V Logic // Engineering-Metrics: 451 Pages Documentation.

Identifier Technical-Path Calibration-Standards
Section 10 General Information Torque Values
Section 20 Engine Repair Specifications
Section 30 Fuel and Air Repair Troubleshooting
Section 40 Electrical Repair Diagrams
Section 50 Power Train Repair Adjustments

Outlining the operational framework across all John Deere 38, 48, and 54-inch walk-behind mower systems. This methodical manual details component identification, operational theory, and diagnostic procedures. It comprehensively covers engine systems, fuel and air delivery, electrical controls, power train functionality, steering, brakes, and miscellaneous repairs such as mower deck and drive wheels. The document further includes detailed test and adjustment specifications for ignition, fuel, and engine systems, ensuring optimal performance and longevity. Torque specifications are documented for critical fasteners to ensure proper pressure slip prevention.

FAQ

What are the **proper** clearance measurements for John Deere 38, 48, and 54-inch walk-behind mowers? keyboard_arrow_down

0.15 mm (0.006 in.) is the standard clearance for intake and exhaust valves when cold.

Specify the **standard** torque specifications for critical fasteners. keyboard_arrow_down

16 N·m (144 lb-in.) is specified for the transaxle mounting cap screws and the engine-to-frame cap screw.

What are the **necessary** safety precautions when working with the fuel system? keyboard_arrow_down

Always ensure the engine is cool and work in a well-ventilated area to avoid fire or explosion hazards from gasoline vapor and static discharge.

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Reviews (4)

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This manual is a must-have for anyone working on John Deere mowers. The troubleshooting charts are particularly helpful!
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Rated 4 out of 5 stars
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New
I found the sectioned repairs very organized, making it easy to navigate. Highly recommend for technicians!
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Rated 4 out of 5 stars