Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for Husqvarna 272K
Summarization of Contents
Introduction to Husqvarna Chain Saws Workshop Manual
General Manual Description
Provides detailed descriptions of procedures for troubleshooting, repair, and testing of chain saws, including safety precautions.
Manual Updates and Service Announcements
Explains how production changes affect manual currency and the need to read with service announcements.
Required Service Tools
Highlights the requirement for special tools and lists those needed for specific procedures.
Safety Precautions and Warning Symbols
Stresses the importance of reading and understanding safety sections and replacing warning symbols.
Target Audience for Workshop Manual
Defines the manual's target audience as personnel with general knowledge of small engine service and repair.
Manual Layout and Diagram Conventions
Explains the manual's layout using flow diagrams and positional directives (A, B, etc.).
Safety Regulations for Chain Saw Operation
General Safety Instructions for Workshops
Provides general instructions for workshops, emphasizing reading the manual before repair.
Special Safety Instructions for Saw Usage
Details specific safety instructions related to fuel hazards, component assembly, and personal protective equipment.
Tools for Husqvarna Chain Saw Maintenance
Universal Tools for All Chain Saws
Lists and illustrates various tools required for servicing all Husqvarna chain saw models.
Tools for Saws 36 and 41
Details specific tools required for Husqvarna chain saw models 36 and 41, with illustrations.
Tools for Saws 40, 45, 51 and 55
Details specific tools required for Husqvarna chain saw models 40, 45, 51, and 55, with illustrations.
Tools for Saws 42, 242 and 246
Details specific tools required for Husqvarna chain saw models 42, 242, and 246, with illustrations.
Tools for Saws 254, 257 and 262
Details specific tools required for Husqvarna chain saw models 254, 257, and 262, with illustrations.
Tools for Saws 61, 268 and 272
Details specific tools required for Husqvarna chain saw models 61, 268, and 272, with illustrations.
Tools for Saws 281 and 288
Details specific tools required for Husqvarna chain saw models 281 and 288, with illustrations.
Tools for Saws 394 and 3120
Details specific tools required for Husqvarna chain saw models 394 and 3120, with illustrations.
Service Data for Husqvarna Chain Saw Models
Service Data for Saws 36 and 41
Provides service data and diagrams for Husqvarna chain saw models 36 and 41, including torque specifications.
Service Data for Saws 42, 242 and 246
Provides service data and diagrams for Husqvarna chain saw models 42, 242, and 246, including torque specifications.
Service Data for Saws 40 and 45
Provides service data and diagrams for Husqvarna chain saw models 40 and 45, including torque specifications.
Service Data for Saws 51 and 55
Provides service data and diagrams for Husqvarna chain saw models 51 and 55, including torque specifications.
Service Data for Saws 254 and 257
Provides service data and diagrams for Husqvarna chain saw models 254 and 257, including torque specifications.
Service Data for Saw 262
Provides service data and diagrams for Husqvarna chain saw model 262, including torque specifications.
Service Data for Saws 61, 268 and 272
Provides service data and diagrams for Husqvarna chain saw models 61, 268, and 272, including torque specifications.
Service Data for Saws 281 and 288
Provides service data and diagrams for Husqvarna chain saw models 281 and 288, including torque specifications.
Service Data for Saw 394
Provides service data and diagrams for Husqvarna chain saw model 394, including torque specifications.
Service Data for Saw 3120
Provides service data and diagrams for Husqvarna chain saw model 3120, including torque specifications.
Trouble Shooting Guide for Chain Saws
Troubleshooting Schematic by Fault Category
Presents a schematic dividing faults into four categories for systematic troubleshooting of chain saw issues.
Troubleshooting Methods and Component Testing
Details different testing procedures for troubleshooting specific components or sub-systems of the chain saw.
Safety Equipment Maintenance and Operation
Chain Brake Dismantling, Cleaning, and Assembly
Provides step-by-step instructions for dismantling, cleaning, inspecting, and assembling the chain brake mechanism.
Chain Catcher Function and Replacement
Explains the function and replacement procedure for the chain catcher, which catches the chain if it breaks.
Muffler Dismantling and Maintenance
Details the dismantling process for the muffler, including specific steps for different saw models and catalytic converters.
Stop Switch Inspection and Replacement
Outlines the dismantling, cleaning, inspection, and assembly procedures for the chain saw's stop switch.
Throttle Lock Mechanism Dismantling
Describes the dismantling process for the throttle lock mechanism across various Husqvarna chain saw models.
Starter Unit Service Procedures
Starter Unit Dismantling Instructions
Provides detailed steps for dismantling the starter unit, including cord replacement and spring handling.
Starter Unit Cleaning and Inspection
Guides on cleaning and inspecting starter components, focusing on the starter cord and pawls.
Changing the Starter Ferrule
Explains the procedure for removing and fitting a new ferrule in the starter housing using specific tools.
Starter Unit Assembly and Cord Fitting
Details the assembly process for the starter unit, including spring fitting and cord attachment for different saw models.
Electrical System Components and Maintenance
Ignition System Checking and Dismantling
Covers checking, dismantling, and reassembling the ignition system, including flywheel and ignition module procedures.
Handle Heating System Troubleshooting
Describes the components and troubleshooting for the electric handle heating system, including wiring and measurement points.
Centrifugal Clutch Service Procedures
Centrifugal Clutch Dismantling
Details the process of dismantling the centrifugal clutch, including removing the bar, chain, and clutch components.
Centrifugal Clutch Cleaning and Inspection
Guides on cleaning and inspecting centrifugal clutch parts, checking for wear and play.
Centrifugal Clutch Assembly
Provides instructions for assembling the centrifugal clutch, including greasing bearings and fitting clutch shoes.
Lubrication System Maintenance
Oil Pump Dismantling Procedures
Details the dismantling of the oil pump for various Husqvarna saw models, including specific steps and tools.
Oil Pump Cleaning and Inspection
Guides on cleaning and inspecting lubrication system parts, checking for wear on screws, pistons, and seals.
Oil Pump and Worm Gear Assembly
Provides instructions for assembling the oil pump and worm gear for various Husqvarna saw models.
Carburettor System Maintenance and Repair
Carburettor Design Overview
Explains the carburettor's design, consisting of metering unit, mixing venturi, and pump unit.
Carburettor Operation Modes
Describes the carburettor's operation in different modes: Cold start, Idling, Part throttle, and Full throttle.
Carburettor Dismantling Procedures
Outlines the process for dismantling the carburettor and its various components, including plugs and jets.
Carburettor Plugs and Jet Servicing
Explains the procedure for removing and replacing plugs during carburettor cleaning.
Semi-Fixed and Fixed Jet Servicing
Describes the function and removal of the extra jet and screen found in some carburettors.
Carburettor Model: Tillotson HS 228 B Dismantling
Provides detailed dismantling steps for the Tillotson HS 228 B carburettor.
Carburettor Model: Tillotson HS 255 B Dismantling
Provides detailed dismantling steps for the Tillotson HS 255 B carburettor.
Carburettor Model: Tillotson HS 260 A Dismantling
Provides detailed dismantling steps for the Tillotson HS 260 A carburettor.
Carburettor Models: Walbro HDA and HD Dismantling
Provides detailed dismantling steps for Walbro HDA and HD carburettors.
Carburettor Model: Walbro WJ Dismantling
Provides detailed dismantling steps for the Walbro WJ carburettor.
Carburettor Model: Walbro WG Dismantling
Provides detailed dismantling steps for the Walbro WG carburettor.
Carburettor Model: Walbro WT Dismantling
Provides detailed dismantling steps for the Walbro WT carburettor.
Carburettor Model: ZAMA C1Q-EL1 Dismantling
Provides detailed dismantling steps for the ZAMA C1Q-EL1 carburettor.
Carburettor Cleaning and Inspection
Guides on cleaning carburettor components using petrol and compressed air, and checking for damage.
Carburettor Assembly and Pressure Testing
Details the reassembly of carburettor components, including plugs and jets, and performing a pressure test.
Carburettor Model: Tillotson HS 228 B Assembly
Provides detailed assembly steps for the Tillotson HS 228 B carburettor.
Carburettor Model: Tillotson HS 255 B Assembly
Provides detailed assembly steps for the Tillotson HS 255 B carburettor.
Carburettor Model: Tillotson HS 260 A Assembly
Provides detailed assembly steps for the Tillotson HS 260 A carburettor.
Carburettor Models: Walbro HDA and HD Assembly
Provides detailed assembly steps for Walbro HDA and HD carburettors.
Carburettor Model: Walbro WJ Assembly
Provides detailed assembly steps for the Walbro WJ carburettor.
Carburettor Model: Walbro WG Assembly
Provides detailed assembly steps for the Walbro WG carburettor.
Carburettor Model: Walbro WT Assembly
Provides detailed assembly steps for the Walbro WT carburettor.
Carburettor Model: ZAMA C1Q-EL1 Assembly
Provides detailed assembly steps for the ZAMA C1Q-EL1 carburettor.
Carburettor Pressure Testing Procedure
Explains how to perform a pressure test on the carburettor to check for leaks and faults.
Refitting the Carburettor to the Chain Saw
Details the process of refitting the carburettor to the chain saw after assembly and adjustment.
Air Filter System Maintenance
Prefilter Cleaning and Oiling
Describes the prefilter, an oiled foam filter, its accessibility, cleaning, and oiling procedure.
Prefilter Cleaning Process
Provides steps for cleaning the prefilter using warm soapy water, rinsing, and drying.
Prefilter Oiling Procedure
Explains the procedure for carefully oiling the prefilter with specific oil, ensuring saturation.
Main Filter Replacement and Cleaning
Describes the main filter as a paper filter, its accessibility, cleaning, and replacement intervals.
Tank Unit Service and Replacement
Tank Unit Dismantling Steps
Details the steps for dismantling the tank unit, including emptying, removing covers, and disconnecting cables.
Tank Unit Cleaning and Inspection
Guides on cleaning and inspecting tank unit components, checking for damage, blockages, and leaks.
Tank Unit Assembly and Fuel Pipe Fitting
Provides instructions for fitting a new fuel pipe, attaching the throttle, and connecting the engine sub-assembly to the tank.
Anti-Vibration System Maintenance
Anti-Vibration System Description
Explains the function of the anti-vibration system in reducing vibrations from the engine to the handles.
Anti-Vibration System Dismantling
Details the dismantling process for the anti-vibration system, including removing rubber elements and spring elements.
Anti-Vibration System Assembly
Provides instructions for assembling the anti-vibration system, including fitting side absorbers and damper elements.
Piston and Cylinder Service Procedures
Piston and Cylinder Dismantling
Details the dismantling of the piston and cylinder, including removing related parts and protecting the crankcase.
Piston and Cylinder Cleaning and Inspection
Guides on cleaning piston and cylinder parts, checking for wear, scoring, and damage.
Decompression Valve Pressure Testing
Explains how to test the decompression valve's functionality by applying and monitoring pressure.
Piston and Cylinder Faults and Causes
Lists common faults related to pistons and cylinders, such as score marks, carbon build-up, and ring breakage, with their causes.
Piston and Cylinder Assembly
Provides instructions for assembling the piston and cylinder, including fitting bearings, rings, and cylinder gasket.
Crankcase and Cylinder Pressure Testing
Details the procedure for pressure testing the crankcase and cylinder to check for leaks in seals and valves.
Crankcase and Crankshaft Maintenance
Crankcase and Crankshaft Dismantling
Outlines the steps for dismantling the crankcase and crankshaft, including removing related components before splitting the case.
Crankcase Cleaning and Inspection
Guides on cleaning crankcase mating surfaces and checking bearings, seals, and the crankcase for damage.
Crankcase and Crankshaft Bearing Assembly
Provides instructions for assembling the crankshaft bearings and seals into the crankcase halves.
Bar Bolt Replacement Procedure
Explains the procedure for changing bar bolts on all saws except models 40 and 45.
Changing Crankcase Seals Without Splitting
Describes how to change seals without splitting the crankcase, detailing dismantling procedures.
Seal Assembly in Oil Pump, Flange, and Crankcase
Provides instructions for assembling seals into the oil pump, plastic flange, and crankcase.
Seal Assembly Positions on Starter Side
Specifies assembly positions and measurements for seals on the starter side of the crankcase.
Seal Assembly Positions on Clutch Side
Specifies assembly positions and measurements for seals on the clutch side of the crankcase.
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