Workshop manual
340 345 346XP 350
English
Workshop manual Husqvarna 340/345/346XP/350/351/353
Contents
Appendix A, Carburettor - EPA models
Introduction
Troubleshooting
Repairing a specific sub-assembly
Arrangement of the manual
General instructions
Safety regulations
Special instructions
Special tools
4 - English
20 b 20 c
Special tools
20 a
Technical data
6 - English
Technical data
Construction and function
Carburettor
Construction and function
In part throttle mode the throttle valve F is par- tially open. Fuel is supplied through the diffuser jets
Idling low rpm
Troubleshooting
Starting
Idling low rpm cont
High rpm
Troubleshooting methods
Troubleshooting
Acceleration and retardation
Repair instructions
Cleaning and inspection
Chain brake - dismantling
Operating test
Chain brake - reassembly
Repair instructions
Silencer - refitting
Chain catcher - replacement
Silencer - removal
2 Refit
Cleaning and inspection
Stop switch - removal
Stop switch - resistance measurement
Repair instructions
Choke control - removal
Stop switch - refitting
Repair instructions
Throttle lock, throttle trigger and return spring - refitting
Choke control - refitting
Throttle lock, throttle trigger and return spring - removal
Cleaning and inspection
Switch - troubleshooting
Front hand grip - troubleshooting
Generator - troubleshooting
Rear hand grip heater - troubleshooting
Switch
Troubleshooting carburettor heater 346XPG, 351G, 353G
Troubleshooting Front handle heater
Operation
Heater element and rear hand grip - removal
Heater element and rear hand grip - removal
Hand grip heater on model 346XPG, 351G, 353G - refitting
Repair instructions
Cleaning and inspection
Starter assembly - removal
Replacing a broken or worn starter cord
Repair instructions
Replacing a worn recoil spring
Starter assembly - refitting
Tensioning the recoil spring
Repair instructions
Model 346XP
Ignition module - testing
Ignition module/flywheel - removal
Cleaning and inspection
Repair instructions
Replacing the generator, model 346XP
Generator - refitting
24 - English
0,3 mm
Ignition module and flywheel - refitting
Repair instructions
Centrifugal clutch - refitting
Inspection and cleaning
Centrifugal clutch - removal
Min 65mm
Repair instructions
Oil pump - removal 346XP, 350
Model
Model
Cleaning and inspection
Oil pump - removal
Oil pump -refitting 346XP, 350
Repair instructions
Repair instructions
Oil pump -refitting
Model
Carburettor - removal
Adjustable oil pump - adjustment 346XP
A C B
Repair instructions
On saws with a carburettor heater 346XPG, 351G, 353G
Carburettor - dismantling
Repair instructions
Repair instructions
Carburettor - reassembly
Cleaning and inspection
32 - English
On saws with a carburettor heater 346XPG, 351G, 353G
Carburettor - pressure testing
Carburettor - refitting
Repair instructions
Carburettor heater 346XP, 351, 353 - Refitting
Repair instructions
Repair instructions
Air intake system - removal
Cleaning and inspection
The air intake system comprises inlet manifold
Air intake system - refitting
Repair instructions
The factory settings are H = 1 turn and L = 1 turn
Carburettor - adjustment
Basic settings and running in
Fine adjustment
Fuel tank - removal
Fine adjustment of idling speed T
Carburettor - correct adjustment
High speed jet H
Cleaning and inspection
Replacing the fuel filter
Replacing the fuel hose
Repair instructions
Fuel tank - refitting
Tank vent - testing
Repair instructions
If replacing the cylinder
Piston and cylinder - removal
Models
Repair instructions
Repair instructions
Decompression valve - pressure testing
Cleaning and inspection
removal”
Piston and cylinder - refitting 346XP, 350, 351
Repair instructions
Piston and cylinder - refitting
Cylinder - pressure testing
Repair instructions
Crankcase and crankshaft - dismantling 346XP
Repair instructions
Sealing ring replacement - drive side
Crankshaft bearings - replacement 346XP
Sealing ring - replacement
Crankshaft complete - dismantling 340
Take care to avoid damaging the crank- case
Crankshaft bearings 340, 345, 350 - replacement
Crankcase and crankshaft - reassembly 346XP
Cleaning and inspection
Repair instructions
Crankshaft complete 340, 345, 350 - reassembly
48 - English
Thread insert
Repairing damaged threads
Guide bar bolts - replacement
Repair instructions
Replacement of the L-needle
Basic adjustment for EPA II carburetors
NOTE! Before making any adjustments the following must be done
2. Check that
114 01
2003W12