Kubota DF972-E2 - ENGINE MECHANISMS AND SYSTEMS

CONTENTS
MECHANISM
1. FEATURE ........................................................................................................ M-1
2. ENGINE BODY ............................................................................................... M-2
[1] CYLINDER BLOCK................................................................................... M-2
[2] HALF-FLOATING HEAD COVER ............................................................ M-2
[3] CYLINDER HEAD ..................................................................................... M-3
[4] CRANKSHAFT........................................................................................... M-3
[5] PISTON AND PISTON RING.................................................................. M-4
[6] OIL PAN.................................................................................................... M-5
[7] CONNECTING ROD ................................................................................. M-5
[8] CAMSHAFT ............................................................................................... M-5
[9] FUEL CAMSHAFT .................................................................................... M-6
[10]ROCKER ARM ASSEMBLY .................................................................... M-6
[11]INLET AND EXHAUST VALVES ............................................................ M-6
[12]FLYWHEEL................................................................................................ M-7
[13]CLOSED BREATHER............................................................................... M-7
3. LUBRICATING SYSTEM ................................................................................ M-8
[1] GENERAL.................................................................................................. M-8
[2] OIL PUMP................................................................................................. M-9
[3] RELIEF VALVE ......................................................................................... M-9
[4] OIL FILTER CARTRIDGE........................................................................ M-9
[5] OIL PRESSURE SWITCH ..................................................................... M-10
4. COOLING SYSTEM ...................................................................................... M-11
[1] GENERAL................................................................................................ M-11
[2] COOLING FIN......................................................................................... M-11
[3] WATER PUMP........................................................................................ M-11
[4] THERMOSTAT ........................................................................................ M-12
[5] RADIATOR............................................................................................... M-12
[6] RADIATOR CAP ..................................................................................... M-13
[7] VAPORIZER (DF972-E2)........................................................................ M-13
5. FUEL SYSTEM ............................................................................................. M-14
[1] GENERAL................................................................................................ M-14
[2] CARBURETOR (WG972-E2).................................................................. M-15
[3] DF CARBURETOR (DF972-E2) ............................................................ M-16
[4] VAPORIZER (DF972-E2)........................................................................ M-17
[5] GOVERNOR ............................................................................................ M-20
[6] INLET MANIFOLD .................................................................................. M-21
[7] FUEL FILTER (FOR GASOLINE LINE) ............................................... M-21
[8] ELECTRO MAGNETIC FUEL FEED PUMP (FOR GASOLINE LINE) M-21
6. IGNITION SYSTEM ...................................................................................... M-22
[1] DEGITAL IGNITION SYSTEM ............................................................... M-22
7. ELECTRICAL SYSTEM ................................................................................ M-23
[1] STARTING SYSTEM .............................................................................. M-23
[2] CHARGING SYSTEM ............................................................................. M-24
[3] SOLENOID............................................................................................... M-28
8. ELECTRONIC GOVERNOR ......................................................................... M-29
KiSC issued 01, 2006 A