Kubota W5021-TC User Manual

CONTENTS
SPECIFICATIONS----------1
DIMENSIONS 13
M. MECHANISM
1.ENGINE------------ M-1
2. TRANSMISSION
[1] AUTOMATIC PRESSURE
(EXCEPT -P, -PC, -PCC) M-5
RELIEVING MECHANISM ....................... M-l [1] POWER TRAIN ...................................... M·5
[2]
CARBURETOR ........................................ M-3
3. MOWER
BLADE CLUTCH
[3]
SUB PTO SHAFT
(EXCEPT .p, .T) --------- M-9
(Except
-P, -PC, -PCC) ·· ..........······ .. ···· .... ·M-3
G. GENERAL DISASSEMB~: NG ::~~~:~::~::::::i::CE)um.muu.u.~·:! '= S.
[1] IDENTIFICATION ······································5-1
,[2]
GENERAL SAFETy··································· 5-1
[3] GENERAL PRECAUTION .......................... 5-3 [3] FUEl SYSTEM ........................................ 5-91
[4] LUBRICANTS AND FUEL.······ ...... ·············S-3
[5]
TROUBLESHOOTING ································S-5
[6]
SERVICING SPECIFICATIONS··················S-ll
[7] TIGHTENING
TORQUES ......................... S-24
(1) Tightening Torques for Important (1) Carburetor ........................................ S-93
S-95
Screws, Bolts and Nuts ...................... S-24 [4] IGNITION SYSTEM ................................
(2)
Tightening Torques for General
Use Screws, Bolts and Nuts ................ S-24 (1) Spark PI ug ......................................... 5-95
[8] MAINTENANCE
CHECK LIST ................. S-27 (2) Ignition Unit ..................................... S-95
[9] CHECK AND MAINTENANCE ................ S-29 (3) Stop Switch ....................................... S-97
(1) Check Points of Each Use
or Daily·· .. ·.···· .. ······............................ S-29 CHECKING .. ···........· ...... · .. ···....· .... ··· .. · .. · .... S-99
(2) Check Points of First Month
or Initial 20 Hours ............................. S-33
(3) Check Points of Every 3 Months [6] CHARGING SYSTEM ····· .. · ...... ··· .. ··· .. · .... S-103
or 50 Hours ........................................ S-35
(4) Check Points of Every 6 Months
or 100 Hours ...................................... S-35 DISASSEMBLING AND ASSEMBLING .. · .. S-105
(5) Check Points of Every Year SERVICING ... ············ ...... ··· .... ············ ...... S-105
or 300 Hours ...................................... S-41
[10]
SPECIAL TOOLS ·· ...... ···· ...... ·· .. ·········· .... ·5-43 (EXCEPT -P, -PC, -PCC) S-111
1.
DISASSEMBLING AND ASSEMBLING .... ···S-47 [2] TRANSMISSION ................................... S-113
[2] ENGINE BODY ·.·· ...... ··· .... ·· .. ······· ....···.... ·S-51
CHECKING AND ADJUSTING ····.......... ·· .. ·S-51 SERVICING ............................................. S-115
DISASSEMBLING AND ASSEMBLING ....· .. S-51
(1) External Components ....................... S-51
(2) Cylinder Head and Valves ................. S-59 SERVICING ............................................. S-125
(3) Camshaft, Piston and Crankshaft ...... S-61
SERVICING ............................................... S-71
(1) Valves··· .... · .... ···........ ·· ..........· .... · .. · .... S-71
(2) Cylinder liner .................................... S-77
(4) Connecting Rod, Crankshaft and .:.
Camshaft···········································5-83 ~
CHECKING AND ADJUSTING ···················S-91 .:.
(1) Governor ........................................... S-91 ~
(2) ChokeRod· ............ ··········· ... ···· ...... ··.·S·91
DISASSEMBLING AND ASSEMBLING ·······S-93
CHECKING AND ADJUSTING ···················5-95
[5]
STARTING SYSTEM ········ .. ······················S-99
DISASSEMBLING AND ASSEMBLING ·· .. ·S-101
SERVICING ............................................. S-l 01
CHECKING ...... · .................. · .. · .. ·· .. · .......... S-l 03
2. MOWER BLADE CLUTCH AND BLADE - S-105
3. TRANSMISSION
ENGINE S-47
[1] SEPARATING ENGINE ·······........ · .... · .. ·· .. ·5-47
[1] SEPARATING TRANSMISSION ....····...... S-lll
DISASSEMBLING AND ASSEMBLING ·.... S-111
DISASSEMBLING AND ASSEMBLING .... ·S-l13
4.
FRONT WHEEL AND REAR WHEEL--S-121
DISASSEMBLING AND ASSEIVIBLING ·· .. ·S-121
5. HANDLE AND DISCHARGE GUARD --S-129
CHECKING AND ADJUSTING .......... ·· .. ···S-129
DISASSEMBLING AND ASSEMBLING .... ·S-129

Kubota W5021-TC Specifications

General

Brand	Kubota
Model	W5021-TC
Category	Lawn Mower
Language	English

Summary

Mechanism Overview

Engine Mechanism

Details on automatic pressure relieving mechanism, carburetor, and sub PTO shaft.

Transmission Mechanism

Covers power train and mower blade clutch mechanisms.

General Information and Safety

General Safety Precautions

Essential safety guidelines for operating and servicing the mower.

Troubleshooting Common Issues

Guides on diagnosing and resolving engine and operational problems.

Tightening Torques for Fasteners

Specifies torque values for important and general fasteners.

Disassembly and Servicing Procedures

Separating Engine Disassembly and Assembly

Steps for draining oil, disconnecting wiring, and removing engine components.

Ignition System Checking and Adjusting

Procedures for checking spark plug and ignition unit.