EasyManua.ls Logo

Jonsered 670 User Manual

Jonsered 670
126 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
1
Workshop Manual
Chain Saws
Contents
This manual covers models:
2036/2040
2041/2045/2050
2054/2055
625/630/670
2077/2083
2095
General recommendations 2
1. Safety equipment 3
2. Starter unit 17
3. Electrical system 23
4. Fuel system 35
5. Centrifugal clutch 55
6. Lubrication system 65
7. Cylinder and piston 77
8. Crankshaft and crankcase 93
9. Tools 115
10. Technical data 127
Question and Answer IconNeed help?

Do you have a question about the Jonsered 670 and is the answer not in the manual?

Jonsered 670 Specifications

General IconGeneral
Ignition SystemElectronic
Chain Pitch3/8 inch
Chain Gauge0.050 inch (1.3 mm)
Vibration Level (Front/Rear Handle)Not available
Sound Power LevelNot available
Sound Pressure LevelNot available
Weight6.6 kg (14.5 lbs) without bar and chain

Summary

Safety equipment

Chain Brake Dismantling

Procedure for taking apart the chain brake from the chain saw.

Chain Brake Disassembly

Steps to release the chain brake mechanism.

Chain Brake Fitting

Instructions for reassembling the chain brake components.

Dismantling Chain Brake (Models 2054/2055)

Specific dismantling steps for chain brake models 2054/2055.

Fitting Chain Brake (Models 2054/2055)

Specific fitting steps for chain brake models 2054/2055.

Dismantling Chain Brake (Models 2077/2083)

Specific dismantling steps for chain brake models 2077/2083.

Fitting Chain Brake (Models 2077/2083)

Specific fitting steps for chain brake models 2077/2083.

Checking Automatic Chain Brake Function

Procedure to verify the automatic function of the chain brake.

Checking Chain Brake Action

Procedure to check the chain brake's effectiveness.

Chain Catcher

Information about the chain catcher's role and maintenance.

Throttle Lock Maintenance

Details on dismantling and fitting the throttle lock mechanism.

Starter unit

Starter Unit Dismantling

Steps for dismantling the starter unit from the engine.

Starter Return Spring Replacement

Procedure for replacing the starter unit's return spring.

Starter Cord Replacement

Instructions for replacing the starter cord.

Starter Unit Assembly

Steps for assembling the starter unit components.

Starter Pawls Replacement

Procedure for replacing the starter pawls.

Electrical system

Ignition Spark Check

Procedure for checking the ignition spark.

Spark Plug Protection Replacement

Instructions for replacing the spark plug protection.

Electrical System Dismantling

Steps for dismantling parts of the electrical system.

Starter Pawls Maintenance

Information on dismantling and replacing starter pawls.

Electrical System Assembly

Steps for reassembling electrical system components.

Electrically Heated Handles

Information and troubleshooting for electrically heated handles.

Generator Replacement

Procedure for replacing the generator unit.

Fuel system

Air Filter Maintenance

Procedure for cleaning and replacing the air filter.

Centrifugal Air Filter Cleaning

Explanation of the centrifugal cleaning process for the air filter.

Fuel Filter Maintenance

Instructions for cleaning and replacing the fuel filter.

Carburettor Service

Detailed instructions for dismantling and fitting the carburettor.

Carburettor Design Overview

Explanation of the carburettor's functional sections and design.

Carburettor Adjustment

Procedure for adjusting the carburettor for optimal performance.

Fuel Tank Vent Maintenance

Information on checking and maintaining the fuel tank vent system.

Fuel System Troubleshooting

A chart for diagnosing fuel system issues.

Centrifugal clutch

Clutch Dismantling (Models 2036/2040)

Steps for dismantling the centrifugal clutch for models 2036/2040.

Clutch Fitting (Models 2036/2040)

Steps for fitting the centrifugal clutch for models 2036/2040.

Clutch Dismantling (Models 2041/2045/2050)

Steps for dismantling the centrifugal clutch for models 2041/2045/2050.

Clutch Fitting (Models 2041/2045/2050)

Steps for fitting the centrifugal clutch for models 2041/2045/2050.

Clutch Dismantling (Models 2054/2055)

Steps for dismantling the centrifugal clutch for models 2054/2055.

Clutch Fitting (Models 2054/2055)

Steps for fitting the centrifugal clutch for models 2054/2055.

Clutch Dismantling (Model 625)

Steps for dismantling the centrifugal clutch for model 625.

Clutch Fitting (Model 625)

Steps for fitting the centrifugal clutch for model 625.

Clutch Dismantling (Models 630/670, 2077, 2095)

Steps for dismantling the centrifugal clutch for models 630/670, 2077, 2095.

Clutch Fitting (Models 630/670, 2077, 2095)

Steps for fitting the centrifugal clutch for models 630/670, 2077, 2095.

Lubricating system

Lubricating System Dismantling (Models 2036-2050)

Steps for dismantling the lubricating system for models 2036/2040, 2041/2045/2050.

Lubricating System Fitting (Models 2036-2050)

Steps for fitting the lubricating system for models 2036/2040, 2041/2045/2050.

Lubricating System Dismantling (Model 2054/2055)

Steps for dismantling the lubricating system for model 2054/2055.

Lubricating System Fitting (Model 2054/2055)

Steps for fitting the lubricating system for model 2054/2055.

Lubricating System Dismantling (Models 625/630/675)

Steps for dismantling the lubricating system for models 625/630/675.

Lubricating System Fitting (Models 625/630/675)

Steps for fitting the lubricating system for models 625/630/675.

Lubricating System Dismantling (Models 2077/2083, 2095)

Steps for dismantling the lubricating system for models 2077/2083, 2095.

Lubricating System Fitting (Models 2077/2083, 2095)

Steps for fitting the lubricating system for models 2077/2083, 2095.

Oil Tank Venting

Procedure for checking and maintaining the oil tank ventilation.

Lubrication Pump Function Check

Procedure to check the chain lubrication pump's function.

Lubricating System Troubleshooting

A chart for diagnosing lubricating system issues.

Cylinder and piston

Cylinder/Piston General Dismantling

General steps for dismantling cylinder and piston components.

Cylinder/Piston Dismantling (Models 2036-2050)

Specific dismantling steps for cylinder/piston for models 2036/2040, 2041/2045/2050.

Cylinder/Piston Fitting (Models 2036-2050)

Specific fitting steps for cylinder/piston for models 2036/2040, 2041/2045/2050.

Cylinder/Piston Dismantling (Model 2054/2055)

Specific dismantling steps for cylinder/piston for model 2054/2055.

Cylinder/Piston Fitting (Model 2054/2055)

Specific fitting steps for cylinder/piston for model 2054/2055.

Cylinder/Piston Dismantling (Models 625/630/670, 2077/2083, 2095)

Specific dismantling steps for cylinder/piston for models 625/630/670, 2077/2083, 2095.

Cylinder/Piston General Fitting

General steps for fitting cylinder and piston components.

Decompression Valve Service

Information and fitting procedure for the decompression valve.

Cylinder/Piston Fitting (Models 625/630/670, 2077/2083, 2095)

Specific fitting steps for cylinder/piston for models 625/630/670, 2077/2083, 2095.

Cylinder/Piston Cleaning and Inspection

Procedures for cleaning and inspecting cylinder and piston parts.

Cylinder/Piston Malfunction Analysis

Diagnosing and analyzing cylinder/piston malfunctions and procedures.

Cylinder/Piston Service Tips

Helpful tips for servicing cylinder and piston components.

Cylinder/Piston Wear Tolerances

Specifications for cylinder bore, piston ring gap, groove, and play.

Crankshaft and crankcase

Sealing Ring Replacement (Magneto Side)

Procedure for replacing the sealing ring on the magneto side.

Sealing Ring Replacement (Clutch Side)

Procedure for replacing the sealing ring on the clutch side.

Bar Attachment Bolt Replacement

Instructions for replacing the bar attachment bolts.

Vibration Damper Replacement

Information and replacement procedures for vibration dampers.

Tank Unit & Crankshaft Service (Model 2036/2040)

Dismantling and checking the tank unit and crankshaft for model 2036/2040.

Crankcase & Crankshaft Service (Models 2041-2050)

Dismantling and checking the crankcase and crankshaft for models 2041/2045/2050.

Crankcase & Crankshaft Service (Model 2054/2055)

Dismantling and checking the crankcase and crankshaft for model 2054/2055.

Crankcase & Crankshaft Service (Models 625/630/670)

Dismantling and checking the crankcase and crankshaft for models 625/630/670.

Crankcase & Crankshaft Service (Models 2077/2083)

Dismantling and checking the crankcase and crankshaft for models 2077/2083.

Crankcase & Crankshaft Service (Model 2095)

Dismantling and checking the crankcase and crankshaft for model 2095.

Crankshaft Inspection

Procedures for checking the crankshaft for wear and damage.

Crankcase Tightness Testing

Procedure for testing the tightness of the crankcase and related components.

Tools

Oil Pump Tools

Tools required for servicing the oil pump.

Generator Tools

Tools required for servicing the generator.

Clutch Tools

Tools required for servicing the clutch.

Vibration Damper Tools

Tools required for servicing vibration dampers.

Crankshaft Tools

Tools required for servicing the crankshaft.

Ball Bearing Tools

Tools required for fitting and removing ball bearings.

Sealing Ring Tools

Tools required for fitting and removing sealing rings.

Cylinder & Piston Tools

Tools required for cylinder and piston maintenance.

Ignition System Tools

Tools required for ignition system maintenance.

Crankcase Tools

Tools required for crankcase maintenance.

Tightness Testing Tools

Tools required for tightness testing procedures.

Chain Brake Tools

Tools required for chain brake maintenance.

Fuel Pick-up Tools

Tools required for fuel pick-up maintenance.

General Workshop Equipment

General workshop equipment for use with the tools.

Technical data

Technical Specifications

Specifications for various engine and component parameters.

Tightening Torque Specifications

Recommended tightening torques for various fasteners and components.