John Deere 21C, 21S, 25S, 30S, 38B Line Trimmers and Brush Cutters Technical Service Repair Manual TM1494 - PDF

Keep your John Deere line trimmer and brush cutter running with the reliable service manual TM1494. This PDF outlines maintenance procedures, parts diagrams, and all the technical information you need for 21C, 21S, 25S, 30S, and 38B models. Access with ease and ensure your trimmer and cutter run optimally.

This comprehensive Technical Service Repair Manual from John Deere provides clear instructions, diagrams, and step-by-step processes for servicing 21C, 21S, 25S, 30S, and 38B Line Trimmers and Brush Cutters. With detailed technical and performance data for a wide range of service applications, this manual is an essential resource for any operator.

Models Covered:
21C, 21S, 25S, 30S, 38B

Manual Contents:
SECTION 10GENERAL INFORMATION
Group 05Safety
Group 10 General Specification
Group 15 Repair Specifications
Group 20Fuels and Lubricants
Group 30Features and Attachments
Group 35Service Information Bulletin Listing
SECTION 20ENGINE REPAIR
Group 05Disassemble Engine
Group 10 Inspect and Repair Engine
Group 15 Assemble Engine
Group 20Recoil Starter
Group 25Muffler
SECTION 30FUEL AND AIR REPAIR
Group 05Air Cleaner, Fuel Lines and Filter
Group 10 Carburetor
Group 15 Throttle Cable
SECTION 40ELECTRICAL REPAIR
Group 05Flywheel
Group 10 Ignition System
SECTION 50POWER TRAIN REPAIR
Group 05Clutch and Drum Assembly
Group 10 Drive Shaft
Group 15 Lower Housing
SECTION 60CUTTING HEAD AND BLADES
Group 15 Nylon Line Cutting Heads
SECTION 210TEST & ADJUSTMENT SPECIFICATIONS/OPERATIONAL CHECKOUT PROCEDURE
Group 05Test & Adjustment Specifications
Group 10 Operational Checkout Procedure
SECTION 220ENGINE OPERATION & TESTS
Group 05Component Location
Group 10 Engine Theory of Operation
Group 15 Diagnosis, Tests & Adjustments
SECTION 230FUEL/AIR OPERATION TESTS & ADJUSTMENTS
Group 05Component Location
Group 10 Theory of Operation
Group 15 Diagnosis, Tests & Adjustments
SECTION 240ELECTRICAL OPERATION TESTS & ADJUSTMENTS
Group 05Component Location
Group 10 Theory of Operation
Group 15 Diagnosis, Tests & Adjustments
Group 20Wiring Schematics
SECTION 250POWER TRAIN OPERATION TESTS & ADJUSTMENTS
Group 05Component Location
Group 10 Theory of Operation
Group 15Diagnosis, Tests & Adjustments
SECTION 260CUTTING HEADS AND BLADES
Group 10 Theory of Operation
Group 15 Diagnosis, Tests & Adjustments
Index

Total Pages: 232
Configuration: PDF File
Language Type: English
Clarification: Illustration Diagrams
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