Kubota W5019-PC 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 W5019-PC Specifications

General

Brand	Kubota
Model	W5019-PC
Category	Lawn Mower
Language	English

Summary

1. ENGINE

[2] CARBURETOR

Explains fuel suction and level for engine start.

[1] SEPARATING ENGINE

Procedures for draining engine oil, removing battery, wiring harness, and cables.

[2] ENGINE BODY

Checking and adjusting valve clearance.

Carburetor and Governor lever

Valves

Governor Gear, Oil Splashing Gear and Sub PTO Shaft

Connecting Rod Cap

Procedures for removing and installing the connecting rod cap and screws.

Piston and Connecting Rod

Steps for inserting piston into cylinder liner, ring gap staggering, and rod alignment.

Piston Ring and Piston Pin

Procedures for removing and installing piston rings and pin, including oil immersion and alignment.

(1) Valves

Measuring and replacing valve guides and checking valve seat width.

Replacing Valve Guide

Correcting Procedure for Valve Seat

(2) Cylinder Liner

Correcting Cylinder Liner

Clearance between Piston Ring and Ring Groove

Oil Clearance between Crank Pin and Connecting Rod Big End

Measuring oil clearance and correcting crank pin if necessary.

Correcting Crank Pin

Cam Heights of Intake and Exhaust

[3] FUEL SYSTEM

Checking and adjusting governor and choke rod.

(1) Carburetor

Disassembly and reassembly of float chamber, main jet, and main nozzle.

[4] IGNITION SYSTEM

Checking and adjusting spark plug and ignition unit.

[5] STARTING SYSTEM

Checking starting switch and starter relay.

Starter Test

Ignition Unit and Spark Plug

Cylinder Head Cover, Rocker Arm and Push Rod

Camshaft and Tappet

Crankshaft and Governor Lever Shaft

Piston Skirt O.D.

Piston Ring Gap

Separating Engine

Piston Ring Thickness

(4) Connecting Rod, Crankshaft and Camshaft

Measuring connecting rod small end I.D.

[6] CHARGING SYSTEM

Checking charging coil and rectifier.

2 TRANSMISSION (EXCEPT -P, -PC, -PCC)

[1] POWER TRAIN

Transmission gears and shafts for speed control and operation.

3 MOWER BLADE CLUTCH (EXCEPT -P, -T)

3 MOWER BLADE CLUTCH

S. DISASSEMBLING AND SERVICING

G GENERAL

[2] GENERAL SAFETY

Crucial safety precautions before servicing or operating the mower.

S.G GENERAL

[3] GENERAL PRECAUTION

Important precautions for engine operation, disassembly, and part handling.

[5] TROUBLESHOOTING

Lists common engine and mower symptoms with probable causes and solutions.

[6] SERVICING SPECIFICATIONS

[7] TIGHTENING TORQUES

Important torque specifications for engine and blade components.

[9] CHECK AND MAINTENANCE

Daily checks for fuel and oil levels.

Checking Mower Blade

Procedures for checking, sharpening, and replacing the mower blade.

(3) Check Points of Every 3 Months or 50 Hours

Adjusting Throttle Lever

Steps to adjust throttle lever for high speed and choke positions.

Adjusting Mower Blade Clutch Lever (Except -P, -T)

Adjusting total travel and free play of the mower blade clutch lever.

(5) Check Points of Every Year or 300 Hours

[4] LUBRICANTS AND FUEL

Specifies engine oil, transmission oil, and fuel types and capacities.

Retightening Blade Mounting Screw

(2) Check Points of First Month or Initial 20 Hours

Engine oil change and spark plug checks within the first 20 hours.

(4) Check Points of Every 6 Months or 100 Hours

Adjusting Drive Clutch Lever (Except -P, -PC, -PCC)

Adjusting total travel and free play of the drive clutch lever.

S.G GENERAL / GENERAlITE5

[8] MAINTENANCE CHECK LIST

Daily, monthly, and yearly maintenance checks for optimal performance.

S.2 MOWER BLADE CLUTCH AND BLADE

Cutting Height

Drive Disk and Actuator A, B

Blade End Play

3 TRANSMISSION (EXCEPT -P, -PC, -PCC)

[1] SEPARATING TRANSMISSION

Procedures for removing drive clutch cable, swing link, and joint.

S.3 TRANSMISSION

[2] TRANSMISSION

Disassembly and assembly of safety shields, change lever, clutch arm, and transmission case.

Counter Shaft, Final Shaft, Bevel Pinion and Clutch fork

4 FRONT WHEEL AND REAR WHEEL

S.4 FRONT WHEEL AND REAR WHEEL

Rear Wheel (-P, -PC)

Rear Wheel (-SeC, -HTe)

Rear Wheel (-PCC)

Rear Wheel (-SeC, -HTe, -T, -Te, -TeE)

5 HANDLE AND DISCHARGE GUARD

CHECKING AND ADJUSTING

Adjusting throttle lever, blade clutch lever, and drive clutch lever.

DISASSEMBLING AND ASSEMBLING

Removing cables, joint cover, handle grips, guards, and springs.