Toro 51643 User manual

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

TC3, 4, 5000 GAS TRIMMER, MODELS 51643, 51644, 51645
Table of Contents – Page 2 of 4
SECTION 2 FUEL SYSTEM - Continued
FUEL CAP - DISASSEMBLY
FUEL CAP - INSPECTION
FUEL CAP - REASSEMBLY
SECTION 3 IGNITION
IGNITION OPERATION
IGNITION OPERATION - FLYWHEEL
IGNITION OPERATION - IGNITION COIL
IGNITION OPERATION - TRIGGER MODULE
IGNITION OPERATION - SPARK PLUG
AIR GAP ADJUSTMENT
TC3000/TC4000 AIR GAP ADJUSTMENT - PREPARATION
TC3000/TC4000 AIR GAP ADJUSTMENT
TC3000/TC4000 AIR GAP ADJUSTMENT - REASSEMBLY
TC5000 AIR GAP ADJUSTMENT - PREPARATION
TC5000 AIR GAP ADJUSTMENT
TC5000 AIR GAP ADJUSTMENT - REASSEMBLY
COIL- COIL - REMOVAL
COIL - INSTALLATION
SECTION 4 RECOIL STARTER
RECOIL STARTER - OPERATION
RECOIL MECHANISM - REMOVAL
RECOIL MECHANISM - DISASSEMBLY
RECOIL MECHANISM - REASSEMBLY
RECOIL MECHANISM - INSTALLATION
STARTER PULLEY - REMOVAL
STARTER PULLEY - INSTALLATION
SECTION 5 CLUTCH SHOES AND FLYWHEEL
CLUTCH SHOES AND FLYWHEEL - OPERATION
CLUTCH SHOES AND FLYWHEEL - DISASSEMBLY
CLUTCH SHOES AND FLYWHEEL - INSPECTION
CLUTCH SHOES AND FLYWHEEL - REMOVAL
CLUTCH SHOES AND FLYWHEEL - REASSEMBLY
CLUTCH DRUM AND CLUTCH HOUSING - CLUTCH DRUM AND CLUTCH HOUSING -
CLUTCH DRUM AND CLUTCH HOUSING - REASSEMBLY
ISOLATION MOUNT (TC4000 AND TC5000 ONLY) - ISOLATION MOUNT -
ISOLATION MOUNT - DISASSEMBLY
ISOLATION MOUNT - REASSEMBLY
SECTION 6 ENGINE
ENGINE - OPERATION
ENGINE - REMOVAL FROM DRIVE TUBE

TC3, 4, 5000 GAS TRIMMER, MODELS 51643, 51644, 51645
Table of Contents – Page 3 of 4
SECTION 6 ENGINE - Continued
ENGINE - DISASSEMBLY
ENGINE - CLEANING AFTER DISASSEMBLY
ENGINE - INSPECTION
ENGINE - REASSEMBLY
ENGINE - INSTALLATION ON DRIVE TUBE
SECTION 7 CONTROLS
CONTROL - DISASSEMBLY
CONTROL - REASSEMBLY
GRIP - REMOVAL
GRIP - INSTALLATION
SECTION 8 HANDLE
TC3000 HANDLE - REMOVAL FROM DRIVE TUBE
TC3000 HANDLE - INSTALLATION ON DRIVE TUBE
TC3000 HANDLE - ADJUSTMENT
TC4000 HANDLE - REMOVAL FROM TUBE
TC4000 HANDLE - INSTALLATION ON DRIVE TUBE
TC4000 HANDLE - ADJUSTMENT
TC5000 HANDLE - REMOVAL FROM DRIVE TUBE.
TC5000 HANDLE - INSTALLATION ON DRIVE TUBE
TC5000 HANDLE - ADJUSTMENT
SECTION 9 SHIELD
SHIELD - REMOVAL FROM DRIVE TUBE
SHIELD - INSTALLATION ON DRIVE TUBE
SHIELD - MOUNTING CUTTER KNIFE ON SHIELD
SECTION 10 GEARBOX
GEARBOX - REMOVAL
GEARBOX - INSTALLATION ON DRIVE TUBE
GEARBOX - SEAL REMOVAL
GEARBOX - SEAL INSTALLATION
SECTION 11 DRIVE SHAFT AND TUBE
DRIVE SHAFT - DRIVE SHAFT - REMOVAL
DRIVE SHAFT - INSTALLATION
DRIVE TUBE - DRIVE TUBE - REMOVAL
DRIVE TUBE - INSTALLATION
SECTION 12 LEECO MANUAL FEED HEAD
LEECO MANUAL FEED HEAD - SPOOL REMOVAL
LEECO MANUAL FEED HEAD - LINE REPLACEMENT
LEECO MANUAL FEED HEAD - SPOOL INSTALLATION

TC3, 4, 5000 GAS TRIMMER, MODELS 51643, 51644, 51645
Table of Contents – Page 4 of 4
SECTION 12 LEECO MANUAL FEED HEAD - Continued
LEECO MANUAL FEED HEAD - DISASSEMBLY
LEECO MANUAL FEED HEAD - INSPECTION
LEECO MANUAL FEED HEAD - REASSEMBLY
SECTION 13 KAAZ MANUAL FEED HEAD
KAAZ MANUAL FEED HEAD - DISASSEMBLY
KAAZ MANUAL FEED HEAD - LINE REPLACEMENT
KAAZ MANUAL FEED HEAD - REASSEMBLY
SECTION 14 PLASTIC FIXED LINE HEAD
PLASTIC FIXED LINE HEAD - LINE REPLACEMENT
PLASTIC FIXED LINE HEAD - REMOVAL
SECTION 15 METAL FIXED LINE HEAD
METAL FIXED LINE HEAD - LINE REPLACEMENT
METAL FIXED LINE HEAD - REMOVAL
METAL FIXED LINE HEAD - INSTALLATION
SECTION 16 TAP AND TRIM HEAD
TAP AND TRIM LINE REPLACEMENT - TAP AND TRIM SPOOL -
TAP AND TRIM SPOOL - LINE REPLACEMENT
TAP AND TRIM SPOOL - INSTALLATION
TAP AND TRIM HEAD - DISASSEMBLY
TAP AND TRIM HEAD - INSPECTION
TAP AND TRIM HEAD - REASSEMBLY
SECTION 17 METAL BLADES
METAL BLADE - REMOVAL
METAL BLADE - INSTALLATION
SECTION 18 HARNESSES
STANDARD AND DELUXE HARNESS - ASSEMBLY
SECTION 19 SPARK ARRESTOR MUFFLER
SPARK ARRESTOR MUFFLER - REMOVAL
SPARK ARRESTOR MUFFLER - INSTALLATION
SPARK ARRESTOR MUFFLER - MAINTENANCE

ABOUT THIS MANUAL
This Service Manualwas written expressly for the Tor0 TC3000,TC4000 and
TC5000 Gas Powered Trimmers. The Tor0 Company had made every effort to
makethe information
in this manual completeand correct.
This manual was written with the servicetechnician
in mind. It isorganized so
that information usedmost often is up front. As a result, you will findreference
information on safety,maintenance,specifications, special tools and
troubleshootingall
in the front third of the manual.
Disassembly, inspectionand reassembly proceduresarecovered
in the last
two-thirds ofthe manual and aregroupedbycomponent. We triedtocover each
common repair with itsown section or sub-section. For example, you will find
that air gapadjustment andignition coilreplacement arecalled out separately.
And, because certain componentsare often difficult totroubleshoot without a
good understandingofhow theywork, we haveincludedsomecomponenttheory.
Thisinformationcan be found of thebeginning of most service procedure
sections.
We are hopefulthat you will find thismanual a valuableaddition toyour shop. If
you shouldcome acrossany errorsor ifyou haveany questions regardingthis
manual, pleasecontactusat the following address:
The Tor0Company
81 11 Lyndale AvenueSouth
Bloomington,MN,USA55420
The Tor0 Companyreserves the right tochange product specifications or this
manual withoutnotice.
The Tor0Companygratefully acknowledgesthe assistance of Mitsubishi Heavy
Industries, Ltd.
in the productionof this manual.
COPYRIGHT@ ALL RIGHTS RESERVED
(C) The ToroCompany 1987
MINNEAPOLIS, MN 55420 -USA

TABLE OF CONTENTS
Reference Information
Page
1
Specifications2
SafetyInformation
ToolRequirements
5
Troubleshooting 6
Maintenance 8
Service Procedures
Section
1 CarburetorPage
operation11
removal
14
disassembly 14
reassembly 16
installation 18
adjustment18
Section2 FuelSystem
Fuel Tank
removal 20
installation20
Primer Pump
properuse21
operation
disassembly22
reassembly22
21
inspection22
Fuel Pickup Tube and Filter
service 23
Fuel Cap
operation23
disassembly24
inspection 24
reassembly24

TABLE OF CONTENTS
ServiceProcedures(cont'd)
Page
operation
25
airgapadjustment 27
coilremoval 28
coil installation 29
RecoilStarter
Recoil Mechanism
operation
30
removal 30
disassembly 30
reassembly 31
installation 32
Starter Pulley
removal
33
installation 33
Section 5 Clutchandlsomount
Clutch Shoes and Flywheel
operation
34
disassembly 34
inspection 34
reassembly 35
removal 35
Clutch Drum and Housing
disassembly
35
reassembly 35
lsomount (TC4000 and TC5000 only)
operation
36
disassembly 37
reassembly 37
Section 6 Engine
operation
38
removal from drive tube 40
disassembly 41
cleaning afterdisassembly 42
inspection 43

TABLE OF CONTENTS
ServiceProcedures(cont’d)
Section6Engine(cont’d))Page
reassembly
44
installation on drivetube. 45
Section 7 ControlandGrip
Control
disassembly 46
reassembly
Grip removal
installation
Section
8 Handle
TC3000
removal from drive tube 48
Installation on drivetube. 48
adjustment
TC4000
removal from drive tube 48
installation on drivetube. 48
adjustment. 49
TC5000
removal from drive tube 49
installation on drivetube. 50
adjustment. 50
Section 9 Shield
removal from drive tube
52
installation on drivetube. 52
mounting cutter knife on shield 53
Section 10 Gearbox
removal from drive tube
54
installationondrivetube. 54
sealremoval
sealinstallation

TABLE OF CONTENTS
ServiceProcedures(cont’d)
Drive Shaft
removal 56
installation 56
Drive
Tube
removal 56
installation57
Section
12 Leeco@ManualLineFeedHead
sped
removal 58
linereplacement 58
installation 58
Headdisassembly 59
inspection 59
reassembly 59
Section
13 Kaaz@ManualLineFeedHead
headdisassembly61
linereplacement 61
headreassembly 62
Section14PlasticFixedLineHead
linereplacement
63
headremoval 63
headinstallation 64
Section15 MetalFixedLineHead
linereplacement
65
headremoval 65
headinstallation 66
Section16TapandTrim@Head
Spool
removal 67
linereplacement 67
installation 67