Table of Contents
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TC3, 4, 5000 GAS TRIMMER, MODELS 51643, 51644, 51645
Table of Contents – Page 1 of 4
ABOUT THIS MANUAL
SAFETY INFORMATION
FOR YOUR SAFETY...
SPECIFICATION
TOOL REQUIREMENTS:
TROUBLESHOOTING
MAINTENANCE
MAINTENANCE - AIR CLEANER
MAINTENANCE - MUFFLER
MAINTENANCE - SPARK PLUG
MAINTENANCE - FUEL FILTER
MAINTENANCE - COOLING SYSTEM
MAINTENANCE - TRIMMER IMPLEMENT
MAINTENANCE - PREPARATION FOR STORAGE
MAINTENANCE - GEARBOX LUBRICATION
SECTION 1 CARBURETOR
CARBURETOR OPERATION
CARBURETOR OPERATION - THE DIAPHRAGM PUMP
CARBURETOR OPERATION - FUEL METERING & MIXING
CARBURETOR OPERATION - THE PRIMER SYSTEM
CARBURETOR - REMOVAL
CARBURETOR - DISASSEMBLY
CARBURETOR - REASSEMBLY
CARBURETOR - INSTALLATION
CARBURETOR ADJUSTMENT - IDLE SPEED
CARBURETOR ADJUSTMENT - MIXTURE
CARBURETOR ADJUSTMENT - THROTTLE VALVE
SECTION 2 FUEL SYSTEM
FUEL TANK - FUEL TANK - REMOVAL
FUEL TANK - INSTALLATION
PRIMER PUMP - PRIMER PUMP - PROPER USE
PRIMER PUMP - OPERATION
PRIMER PUMP - DISASSEMBLY
PRIMER PUMP - INSPECTION
PRIMER PUMP - REASSEMBLY
FUEL PICKUP TUBE AND FILTER - SERVICE
FUEL CAP - FUEL CAP - OPERATION
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Summarization of Contents
SAFETY INFORMATION
FOR YOUR SAFETY...
General safety precautions for operation and maintenance.
SPECIFICATIONS
Engine Specifications
Details engine type, bore, stroke, output, and other technical parameters.
TC3000 and TC4000 Service Specifications
Serviceable dimensions and limits for TC3000/TC4000 models.
TC5000 Service Specifications
Serviceable dimensions and limits for the TC5000 model.
Carburetor Specifications
Technical details and settings for the carburetor.
Fastener Torques
Torque values for various fasteners used in assembly and disassembly.
TROUBLESHOOTING
Engine Does Not Produce Spark
Lists possible causes and remedies for no spark issues.
Engine Floods During Starting
Lists possible causes and remedies for engine flooding during startup.
Engine Not Getting Fuel
Lists possible causes and remedies for fuel delivery problems.
Engine Lacks Power
Lists possible causes and remedies for reduced engine power.
Engine Has Low Compression
Lists possible causes and remedies for low engine compression.
Engine Backfires (indicated by burnt air cleaner element)
Lists possible causes and remedies for engine backfiring.
Trimmer Vibrates Excessively
Lists possible causes and remedies for excessive trimmer vibration.
MAINTENANCE
Maintenance - Air Cleaner
Procedure for cleaning and servicing the air cleaner.
Maintenance - Muffler
Procedure for decarbonizing and servicing the muffler.
Maintenance - Spark Plug
Procedure for checking, gapping, and replacing the spark plug.
Maintenance - Fuel Filter
Procedure for replacing the fuel filter.
Maintenance - Cooling System
Instructions for inspecting cooling system components for debris.
Maintenance - Trimmer Implement
Guidance on cleaning the trimmer implement and drive shaft.
Maintenance - Preparation for Storage
Steps for preparing the trimmer for long-term storage.
Maintenance - Gearbox Lubrication
Procedure for lubricating the cutter head gearbox.
SECTION 1 CARBURETOR
Carburetor Operation
Explains how the diaphragm-style carburetor functions.
Carburetor Operation - The Diaphragm Pump
Details the function of the diaphragm pump system.
Carburetor Operation - Fuel Metering & Mixing
Explains how fuel is metered and mixed with air.
Carburetor Operation - The Primer System
Explains the function and use of the primer system.
Carburetor - Removal
Step-by-step instructions for removing the carburetor.
Carburetor - Disassembly
Detailed steps for disassembling the carburetor components.
Carburetor - Reassembly
Step-by-step instructions for reassembling the carburetor.
Carburetor - Installation
Instructions for installing the reassembled carburetor.
Carburetor Adjustment - Idle Speed
How to adjust the engine idle speed.
Carburetor Adjustment - Mixture
How to adjust the high speed mixture screw for optimal RPM.
Carburetor Adjustment - Throttle Valve
How to adjust the throttle valve travel.
SECTION 2 FUEL SYSTEM
Fuel Tank - Removal
Steps for removing the fuel tank.
Fuel Tank - Installation
Steps for installing the fuel tank.
Primer Pump - Proper Use
Guidance on the correct operation of the primer system.
Primer Pump - Operation
Explains the two-step operation of the primer pump.
Primer Pump - Disassembly
Steps for disassembling the primer pump.
Primer Pump - Inspection
How to inspect primer pump components for damage.
Primer Pump - Reassembly
Steps for reassembling the primer pump.
Fuel Pickup Tube and Filter - Service
How to inspect and service the fuel pickup tube and filter.
Fuel Cap - Operation
Explains the function of the fuel tank cap's valve system.
Fuel Cap - Disassembly
Steps for disassembling the fuel cap.
Fuel Cap - Inspection
How to inspect fuel cap components for proper function.
Fuel Cap - Reassembly
Steps for reassembling the fuel cap.
SECTION 3 IGNITION
Ignition Operation
Overview of ignition system components and their function.
Ignition Operation - Flywheel
Explains the role of the flywheel in generating electricity.
Ignition Operation - Ignition Coil
Explains the function of the ignition coil as a transformer.
Ignition Operation - Trigger Module
Details how the trigger module amplifies voltage for spark.
Ignition Operation - Spark Plug
Explains the spark plug's role and proper gapping.
AIR GAP ADJUSTMENT
How to adjust the air gap between coil and flywheel magnets.
TC3000/TC4000 Air Gap Adjustment - Preparation
Steps to prepare for air gap adjustment on TC3000/TC4000.
TC3000/TC4000 Air Gap Adjustment
Procedure for setting the air gap on TC3000/TC4000.
TC3000/TC4000 Air Gap Adjustment - Reassembly
Steps for reassembling after air gap adjustment.
TC5000 Air Gap Adjustment - Preparation
Steps to prepare for air gap adjustment on TC5000.
TC5000 Air Gap Adjustment
Procedure for setting the air gap on TC5000.
TC5000 Air Gap Adjustment - Reassembly
Steps for reassembling after TC5000 air gap adjustment.
Coil - Removal
Steps for removing the ignition coil.
Coil - Installation
Steps for installing the ignition coil.
SECTION 4 RECOIL STARTER
Recoil Starter - Operation
Explains the function of the recoil starter mechanism.
Recoil Mechanism - Removal
Steps for removing the recoil starter unit.
Recoil Mechanism - Disassembly
Steps for disassembling the recoil mechanism.
Recoil Mechanism - Reassembly
Steps for reassembling the recoil mechanism.
Recoil Mechanism - Installation
Steps for installing the recoil starter.
Starter Pulley - Removal
Steps for removing the starter pulley.
Starter Pulley - Installation
Steps for installing the starter pulley.
SECTION 5 CLUTCH SHOES AND FLYWHEEL
Clutch Shoes and Flywheel - Operation
Explains the operation of the centrifugal clutch.
Clutch Shoes and Flywheel - Inspection
How to inspect clutch pads, drum, and flywheel magnets.
Clutch Shoes and Flywheel - Disassembly
Steps for disassembling the clutch shoes and flywheel.
Clutch Shoes and Flywheel - Removal
Steps for removing the clutch shoes and flywheel.
Clutch Shoes and Flywheel - Reassembly
Steps for reassembling the clutch shoes and flywheel.
CLUTCH DRUM AND CLUTCH HOUSING
Disassembly and reassembly of the clutch drum and housing.
Clutch Drum and Clutch Housing - Disassembly
Steps for disassembling the clutch drum and housing.
Clutch Drum and Clutch Housing - Reassembly
Steps for reassembling the clutch drum and housing.
ISOLATION MOUNT (TC4000 and TC5000 only)
Operation, disassembly, and reassembly of the isolation mount.
Isolation Mount - Operation
Explains the vibration isolation system.
Isolation Mount - Disassembly
Steps for disassembling the isolation mount.
Isolation Mount - Reassembly
Steps for reassembling the isolation mount.
SECTION 6 ENGINE
Engine - Operation
Explains the two-stroke, port-to-port engine design.
Engine - Removal From Drive Tube
Steps for removing the engine from the drive tube.
Engine - Disassembly
Steps for disassembling the engine.
Engine - Cleaning After Disassembly
Steps for cleaning engine parts after disassembly.
Engine - Inspection
How to inspect engine parts for wear and damage.
Crankshaft Axial Play
How to measure crankshaft axial play.
Crankshaft Run-out
How to measure crankshaft run-out.
Piston Ring End Gap
How to measure piston ring end gap.
Cylinder Bore
How to measure cylinder bore and check plating wear.
Piston Diameter
How to measure piston diameter.
Piston to Cylinder Bore Clearance
How to calculate and check piston-to-cylinder clearance.
Engine - Reassembly
General instructions for reassembling engine parts.
Engine - Installation on Drive Tube
Steps for installing the engine onto the drive tube.
SECTION 7 CONTROLS
Control - Disassembly
Steps for disassembling the control unit.
Control - Reassembly
Steps for reassembling the control unit.
Grip - Removal
Steps for removing the grip.
Grip - Installation
Steps for installing the grip.
SECTION 8 HANDLE
TC3000 Handle - Removal from Drive Tube
Steps for removing the TC3000 handle.
TC3000 Handle - Installation on Drive Tube
Steps for installing the TC3000 handle.
TC3000 Handle - Adjustment
How to adjust the TC3000 handle height.
TC4000 Handle - Removal From Tube
Steps for removing the TC4000 handle.
TC4000 Handle - Installation on Drive Tube
Steps for installing the TC4000 handle.
TC4000 Handle - Adjustment
How to adjust the TC4000 handle.
TC5000 Handle - Removal From Drive Tube
Steps for removing the TC5000 handle.
TC5000 Handle - Installation on Drive Tube
Steps for installing the TC5000 handle.
TC5000 Handle - Adjustment
How to adjust the TC5000 handle.
SECTION 9 SHIELD
Shield - Removal from Drive Tube
Steps for removing the shield from the drive tube.
Shield - Installation on Drive Tube
Steps for installing the shield onto the drive tube.
Shield - Mounting Cutter Knife on Shield
How to mount a cutter knife onto the shield.
SECTION 10 GEARBOX
Gearbox - Removal
Steps for removing the gearbox.
Gearbox - Installation on Drive Tube
Steps for installing the gearbox onto the drive tube.
Gearbox - Seal Removal
Steps for removing the gearbox seal.
Gearbox - Seal Installation
Steps for installing the gearbox seal.
SECTION 11 DRIVE SHAFT AND TUBE
Drive Shaft - Removal
Steps for removing the drive shaft.
Drive Shaft - Installation
Steps for installing the drive shaft.
Drive Tube - Removal
Steps for removing the drive tube.
Drive Tube - Installation
Steps for installing the drive tube.
SECTION 12 LEECO® MANUAL FEED HEAD
Leeco® Manual Feed Head - Spool Removal
Steps for removing the spool from the Leeco head.
Leeco® Manual Feed Head - Line Replacement
How to replace trimmer line in the Leeco head.
Leeco® Manual Feed Head - Spool Installation
Steps for installing the spool into the Leeco head.
Leeco® Manual Feed Head - Disassembly
Steps for disassembling the Leeco manual feed head.
Leeco® Manual Feed Head - Inspection
How to inspect Leeco head components.
Leeco® Manual Feed Head - Reassembly
Steps for reassembling the Leeco manual feed head.
SECTION 13 KAAZ® MANUAL FEED HEAD
Kaaz® Manual Feed Head - Line Replacement
How to replace trimmer line in the Kaaz head.
Kaaz® Manual Feed Head - Disassembly
Steps for disassembling the Kaaz manual feed head.
Kaaz® Manual Feed Head - Reassembly
Steps for reassembling the Kaaz manual feed head.
SECTION 14 PLASTIC FIXED LINE HEAD
Plastic Fixed Line Head - Removal
Steps for removing the plastic fixed line head.
Plastic Fixed Line Head - Line Replacement
How to replace trimmer line in the plastic fixed head.
Plastic Fixed Line Head - Installation
Steps for installing the plastic fixed line head.
SECTION 15 METAL FIXED LINE HEAD
Metal Fixed Line Head - Line Replacement
How to replace trimmer line in the metal fixed head.
Metal Fixed Line Head - Removal
Steps for removing the metal fixed line head.
Metal Fixed Line Head - Installation
Steps for installing the metal fixed line head.
SECTION 16 TAP AND TRIM® HEAD
Tap and Trim® Line Replacement
How to replace line in the Tap and Trim head.
Tap and Trim® Spool - Removal
Steps for removing the Tap and Trim spool.
Tap and Trim® Spool - Line Replacement
How to wind new line onto the Tap and Trim spool.
Tap and Trim Spool - Installation
Steps for installing the Tap and Trim spool.
Tap and Trim® Head - Disassembly
Steps for disassembling the Tap and Trim head.
Tap and Trim® Head - Inspection
How to inspect Tap and Trim head components.
Tap and Trim® Head - Reassembly
Steps for reassembling the Tap and Trim head.
SECTION 17 METAL BLADES
Metal Blade - Removal
Steps for removing metal blades.
Metal Blade - Installation
Steps for installing metal blades.
SECTION 18 HARNESSES
Standard and Deluxe Harness - Assembly
Steps for assembling and fitting the trimmer harness.
SECTION 19 Spark Arrestor Muffler
Spark Arrestor Muffler - Removal
Steps for removing the spark arrestor muffler.
Spark Arrestor Muffler - Installation
Steps for installing the spark arrestor muffler.
Spark Arrestor Muffler - Maintenance
How to clean and maintain the spark arrestor muffler.
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