John Deere 21C, 21S, 25S, 30S, 38B Gasoline Line Trimmers, Brush Cutters TM1494 Technical Manual PDF

Technical manual is intended for serve and repair John Deere Gasoline Line Trimmers, Brush Cutters.
Technical manual is concise guides for specific machines. Technical manual is on-the-job guides containing only the vital information needed for diagnosis, analysis, testing, and repair.
This technical manual comes in PDF and includes 232 pages, which are printable. We recommend to use Adobe PDF Reader, to be sure all images / graphics will display correctly.

Models covers:
21C, 21S, 25S, 30S, 38B.

CONTENTS:

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