Table Of Contents - Tecumseh HSK840 Technician's Handbook

2-cycle

Technician's handbook (36 pages)

Technician's handbook (36 pages)

Table of Contents

IDENTIFICATION ................................................................................................................. .................. 1

INTERPRETATION OF MODEL NUMBER ............................................................................................ 1

FUELS .................................................................................................................................................... 1

ENGINE OIL ........................................................................................................................................... 1

FUEL/OIL MIX ......................................................................................................................................... 1

STORAGE .............................................................................................................................................. 2

TUNE-UP PROCEDURE ........................................................................................................................ 2

EXHAUST PORT CLEANING ................................................................................................................. 2

AIR CLEANER

AIR CLEANER .................................................................................................................... .................... 3

POLYURETHANE-TYPE AIR CLEANER ............................................................................................... 3

PAPER TYPE AIR CLEANER ......................................................................................................... ....... 3

KLEEN-AIRE

CANISTER STYLE DUEL STAGE AIR CLEANER ......................................................... 3

2 CYCLE THEORY OF OPERATION

OPERATION OF HSK, HXL840-850 MODELS ...................................................................................... 4

OPERATION OF TVS, TVXL840 ............................................................................................................ 4

TERMS ................................................................................................................................................... 4

EXHAUST OR SCAVENGE PHASE ...................................................................................................... 4

PORTS .................................................................................................................................................... 4

LUBRICATION ........................................................................................................................................ 4

REED VALVE ......................................................................................................................................... 4

CARBURETION

ARBURETOR IDENTIFICATION ....................................................................................................... .. 5

SERIES I OPERATION ........................................................................................................................... 5

SERIES VI OPERATION ........................................................................................................................ 5 - 6

SERVICING THE CARBURETOR - SERIES VI

REBUILDING THE CARBURETOR ...................................................................................................... .. 7 - 8

TROUBLESHOOTING CARBURETION SERIES VI

TABLE OF PROBLEMS AND CORRECTIONS ..................................................................................... 9

SERVICING THE CARBURETOR - SERIES I

SERVICE ........................................................................................................................ ........................ 10

SERVICE CARBURETOR PRE-SETS AND ADJUSTMENTS

PRE-SETS AND ADJUSTMENTS ....................................................................................................... ... 11

FINAL ADJUSTMENTS .......................................................................................................................... 11

TROUBLESHOOTING CARBURETION SERIES I

TABLE OF PROBLEMS AND CORRECTIONS ..................................................................................... 12

PISTON AND RINGS

840 - 850 MODELS ............................................................................................................... .................. 13

E.G.R. TUBE - SERVICE AND INSTALLATION (TVS/TVXL 840 ONLY)

PORT PLUG REINSTALLATION ....................................................................................................... ..... 14

ANTI-PUDDLING METER HOLE SCREEN

REPLACEMENT OF SCREEN ............................................................................................................... 15

SELF-ENERGIZING BRAKE SYSTEM

DISASSEMBLY OF THE BRAKE SYSTEM ........................................................................................... 16

REASSEMBLY OF THE BRAKE SYSTEM ............................................................................................ 16 - 17

GOVERNOR LINKAGE AND ADJUSTMENT

LINKAGE LOCATION ............................................................................................................... .............. 18

GOVERNOR ADJUSTMENT .................................................................................................................. 18

GOVERNOR FOLLOWER ARM AND SHAFT ASSEMBLY ................................................................... 18

GOVERNOR LINKAGE AND ADJUSTMENT - HXL/HSK840 - 850

CONTROLS ............................................................................................................................................ 19

REWIND STARTER

TYPE I ..................................................................................................................................................... 20

TYPE II .................................................................................................................................................... 20

840 - 850 DISASSEMBLY

MODEL 840-850 DISASSEMBLY ...................................................................................................... .... 21

EXHAUST PORT CLEANING ................................................................................................................. 22 - 25

TVS & TVXL 840 REASSEMBLY

840 HORIZONTAL AND VERTICAL REASSEMBLY ............................................................................. 26 - 30

TORQUE SPECIFICATIONS

TORQUE LIMITS FOR REASSEMBLY .................................................................................................. 3 1

ENGINE SPECIFICATIONS

TOLERANCES IN THE ENGINES ...................................................................................................... .... 32

TRAINING AIDS AND TOOLS

LISTING OF SPECIAL TRAINING AIDS AND TOOLS .......................................................................... 33 - 34

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