Stihl 019 T - User Manual

STIHL 019 T 1
CONTENTS
1. Introduction 2
2. Specifications 3
2.1 Engine 3
2.2 Fuel System 3
2.3 Ignition System 4
2.4 Cutting Attachment 4
2.5 Special Accessories 4
2.5.1 For User 4
2.5.2 For Service 4
2.6 Tightening Torques 5
3. Clutch, Chain Drive,
Chain Brake and
Chain Tensioner 6
3.1 Chain Sprocket 6
3.2 Clutch 7
3.3 Chain Brake 7
3.3.1 Checking Function 7
3.3.2 Disassembly 8
3.3.3 Assembly 9
3.4 Chain Tensioner 11
3.5 Bar Stud 11
4. Engine 12
4.1 Removal 12
4.2 Assembly 13
4.3 Exhaust Muffler/
Spark Arresting Screen 14
4.4 Leakage Test 15
4.4.1 Preparations 15
4.4.2 Pressure Test 16
4.4.3 Vacuum Test
(for diaphragm) 17
4.4.4 Vacuum Test
(for oil seal) 17
4.5 Oil Seals 19
4.6 Cylinder 20
4.7 Piston 22
4.8 Piston Ring 23
4.9 Crankshaft 23
5. Ignition System 25
5.1 Spark Plug Boot 25
5.2 Ignition Module 26
5.2.1 Ignition Timing 26
5.2.2 Removing and
Installing 26
5.3 Flywheel 27
5.4 Ground Wire/
Short Circuit Wire 28
5.5 Contact Spring 29
6. Rewind Starter 30
6.1 General 30
6.2 Fan Housing 30
6.3 Rewind Spring 31
6.3.1 Replacing 31
6.3.2 Tensioning 32
6.4 Starter Rope
(ElastoStart) 32
6.5 Starter Grip
(ElastoStart) 33
7. AV Handle System 34
8. Master Control/
Handle System 36
8.1 Interlock Lever/
Throttle Trigger 36
8.2 Switch Shaft 36
8.3 Handle Molding 37
8.4 Handlebar 37
8.5 Top Handle 37
9. Chain Lubrication 39
9.1 Pickup Body 39
9.2 Oil Tank/Suction Hose 39
9.3 Oil Pump 40
9.4 Worm 41
10. Fuel System 42
10.1 Air Filter 42
10.2 Pickup Body 42
10.3 Tank Vent 43
10.4 Fuel Tank/
Fuel Hose 43
10.5 Carburetor 44
10.5.1 Leakage Test 44
10.5.2 Removing and
Installing 45
10.5.3 Adjustment 45
10.6 Throttle Cable 46
10.7 Spacer Flange/
Diaphragm 47
11. Special Servicing
Tools and Aids 48
11.1 Special Servicing Tools 48
11.2 Servicing Aids 50
STIHl
STIHlSTIHl
STIHl
©1996, Andreas Stihl, Waiblingen

Stihl 019 T Specifications

General

Brand	Stihl
Model	019 T
Category	Chainsaw
Language	English

Summary

introduction

specifications

engine

Details of the single cylinder two-stroke engine, including displacement, bore, stroke, and speed.

fuel system

Specifications for the fuel system, covering carburetor settings, tank capacity, and fuel mixture ratios.

ignition system

Specifications for the ignition system, including air gap, ignition timing, and spark plug details.

cutting attachment

Specifications for the cutting attachment, detailing chain, sprocket type, and chain speed.

special accessories

Lists of special accessories available for users and for service purposes.

tightening torques

Specifies tightening torques for various fasteners and components during assembly or repair.

clutch chain drive chain brake and chain tensioner

chain sprocket

Instructions for removing, cleaning, and inspecting the chain sprocket.

clutch

Procedures for removing and installing the clutch assembly.

chain brake checking function

How to check the efficiency and functionality of the chain brake.

chain brake disassembly

Step-by-step guide for disassembling the chain brake mechanism.

chain brake assembly

Detailed instructions for reassembling the chain brake mechanism.

chain tensioner

Procedures for installing the chain tensioner component.

bar stud

Instructions for removing and installing the bar stud.

engine

disassembly

Steps for disassembling the engine, including fuel and ignition system components.

assembly

Procedures for reassembling the engine after servicing or repair.

exhaust muffler spark arresting screen

Instructions for removing and installing the exhaust muffler and spark arresting screen.

leakage test

Overview of leakage testing and preparation steps for the engine.

pressure test

Method for performing a pressure test on the engine housing to check for leaks.

vacuum test for diaphragm

Procedure to test the diaphragm using a vacuum pump for proper function.

vacuum test for oil seal

Procedure to test engine oil seals using a vacuum pump.

oil seals

Detailed instructions for replacing engine oil seals on the clutch and starter sides.

cylinder

Procedures for removing and installing the cylinder.

piston

Steps for removing and installing the piston and piston pin.

piston ring

Instructions for installing the piston ring into the piston groove.

crankshaft

Information regarding the replacement of the crankshaft unit and associated bearings.

ignition system

spark plug boot

Steps for removing and fitting the spark plug boot onto the ignition lead.

ignition module

Overview and testing of the ignition module.

ignition timing

Explanation that ignition timing is fixed and not adjustable.

ignition module removing and installing

Procedures for removing and installing the ignition module.

flywheel

Instructions for removing and installing the flywheel.

ground wire short circuit wire

Procedures for handling and routing ground and short circuit wires.

contact spring

Steps for pulling out and positioning the contact spring.

rewind starter

general

General information on the rewind starter and troubleshooting stiff action.

fan housing

Procedures for removing and installing the fan housing.

rewind spring replacing

Detailed steps for replacing the rewind spring.

rewind spring tensioning

Instructions on how to correctly tension the rewind spring.

starter rope elasto start

Instructions for replacing the starter rope, including the ElastoStart grip.

starter grip elasto start

Procedures for threading and fitting the starter rope into the starter grip.

av handle system

annular buffers in fan housing

Steps to remove and install annular buffers in the fan housing.

front annular buffer in engine housing

Procedures for removing and installing front annular buffers in the engine housing.

rear annular buffer in engine housing

Procedures for removing and installing rear annular buffers in the engine housing.

master control handle system

interlock lever throttle trigger

Procedures for removing and installing the interlock lever and throttle trigger.

switch shaft

Steps for removing and installing the switch shaft.

handle molding

Procedures for removing and installing the handle molding.

handlebar

Instructions for removing the handle molding from the handlebar.

top handle

Procedures for removing and installing the top handle.

chain lubrication

pickup body

Instructions for cleaning and inspecting the oil pickup body.

oil tank suction hose

Procedures for removing and cleaning the oil tank and suction hose.

oil pump

Procedures for removing and installing the oil pump.

worm

Steps for removing and installing the worm and drive spring.

fuel system

air filter

Importance of the air filter and procedure for cleaning or replacing it.

pickup body

Function of the pickup body and procedure for cleaning the fuel tank.

tank vent

Importance of checking and cleaning the tank vent for correct carburetor operation.

fuel tank fuel hose

Procedures for removing and installing the fuel tank and fuel hose.

carburetor

General section for carburetor procedures.

carburetor leakage test

How to test the carburetor for leaks using a specialized tester.

carburetor removing and installing

Procedures for removing and installing the carburetor.

carburetor adjustment

Standard settings and procedures for adjusting the carburetor.

throttle cable

Adjusting idle speed and throttle cable settings for optimal engine running.

spacer flange diaphragm

Procedures for removing and installing the spacer flange and diaphragm.

special servicing tools and aids

special servicing tools

List of special tools with part numbers for servicing.

servicing aids

List of servicing aids such as lubricants and sealants with their applications.