Husqvarna 357 XP service schedule

Chainsaws · Older model (parts lists run from 2001 serial numbers; this manual edition 2010)

Every maker's service job for the Husqvarna 357 XP, counted in hours, with the oils, filters and parts each one needs. Add your implement to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.

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Versions: 357 XP; 357 XPG (heated handles and carburettor); 357 XP E-tech

Service intervals

Job	When
Chain brake test and brake band check	every month
Guide bar: turn, clean, deburr and grease the nose	every month
Drive sprocket check and clutch needle bearing grease	every month
Air filter clean or replace	every month
Spark plug replacement	every month
Chain oiling check, oil pump setting and tank cleaning	every month
Muffler and spark arrestor mesh clean	every month
Cooling system and carburettor compartment clean	every month
Vibration damping elements and chain catcher check	every month
Fuel filter replacement	every year
Chain sharpening and depth gauges	when needed
Carburettor adjustment (owner limits)	when needed

Service jobs and parts

Chain brake test and brake band check

Safety · every month

Husqvarna's schedule says clean the chain brake and check it works safely daily, and check the brake band monthly, replacing it when less than 0.6 mm remains at the most worn point.

Part	Qty	Notes	Part number
Brake band assembly	1	From the 357 XP parts list	537043001

Step-by-step

Wear approved PPE: helmet, hearing protection, eye protection, gloves, trousers and boots with saw protection.
Monthly, engine off: brush dust and resin off the brake and clutch drum and measure the brake band. Replace it under 0.6 mm.
Check the front hand guard for cracks and that it moves freely and is firmly anchored to the clutch cover.
Inertia check, engine off: rest the saw on a stump, let go of the front handle and let it fall by its own weight. The brake must apply when the bar hits the stump.
Running check: start the saw on firm ground with the chain clear, grip both handles, apply full throttle and tilt your left wrist onto the hand guard. The chain must stop immediately. Do not let go of the front handle.
If the saw fails any check, take it to your service workshop.

Tools: Chainsaw PPE (helmet, visor or glasses, ear defenders, saw gloves, saw trousers, saw boots), Brush, Vernier calliper

Guide bar: turn, clean, deburr and grease the nose

Cutting attachment · every month

Husqvarna's schedule says turn the bar daily, keep the lubrication hole clear and the groove clean, lubricate a sprocket-tip bar, and file burrs off the bar edges weekly. The tip sprocket should be greased each time you refuel. The app counts in months.

Part	Qty	Notes	Part number
Guide bar	1	Check your handbook for approved bar and chain combinations	check your handbook

Step-by-step

Daily: turn the bar over, clean the groove and clear the oil hole.
At each refuel: grease the bar tip sprocket with the grease gun.
Weekly: file off burrs on the rails.
Replace the bar if the groove is badly worn or a hollow forms under the tip (a sign of running with a slack chain).

Tools: Flat file, Grease gun with bearing grease, Gloves

Drive sprocket check and clutch needle bearing grease

Drive · every month

Husqvarna says check the drive sprocket daily for wear, replace it whenever you replace the chain, grease the clutch drum needle bearing once a week, and check the clutch centre, drum and spring monthly. The app counts in months; greasing is weekly.

Part	Qty	Notes	Part number
Rim, 3/8 in x 7	1	Parts list describes 501457402 as 3/8 x 7. For .325 in chain the list also shows rim 501598002 in the .325 x 7 clutch kit; match your chain pitch	501457402
Needle bearing (clutch drum)	1	From the parts list	503255201

Step-by-step

Loosen the two bar nuts and remove the clutch cover.
Check the drive sprocket for wear and replace it if worn, and whenever you fit a new chain.
Weekly: lay the saw clutch drum up and squirt grease into the centre of the crankshaft with a grease gun.
Monthly: check the clutch centre, clutch drum and clutch spring for wear.

Tools: Combination spanner, Grease gun, High-quality bearing grease or engine oil

Air filter clean or replace

Engine · every month

Husqvarna's schedule says clean the air filter weekly and replace it if necessary. A filter used for a long time cannot be cleaned completely, so replace it at regular intervals and always if damaged. The app counts in months; Husqvarna's figure is weekly.

Part	Qty	Notes	Part number
Air filter, nylon 80 µm	1	Parts list also gives felt filter 537010902 and 537010903; fit the type your saw uses	537010901

Step-by-step

Remove the air filter cover and the filter.
Brush or shake it clean, or wash it in water and detergent and let it dry.
Refit it so it seals tightly against the filter holder.

Tools: Brush, Water and detergent

Spark plug replacement

Ignition · every month

Husqvarna's schedule says clean the spark plug and check the 0.5 mm gap monthly, and the spark plug page says replace it after about a month in operation or earlier if necessary. Always use a suppressed plug of the recommended type.

Part	Qty	Notes	Part number
Spark plug	1	Husqvarna number from the parts list; the manual specifies NGK BPMR 7A or Champion RCJ 7Y	503235108

Step-by-step

If the saw is low on power, hard to start or idles badly, check the plug first.
Clean a dirty plug and check the gap is 0.5 mm.
Fit a new plug after about a month's use.
Fouling comes from a wrong carburettor setting, wrong fuel mix or dirty air filter.

Tools: Combination spanner, Feeler gauge 0.5 mm

Chain oiling check, oil pump setting and tank cleaning

Lubrication · every month

Husqvarna's schedule says check daily that the bar and chain get enough oil, and empty and clean the fuel tank and oil tank monthly.

Part	Qty	Notes	Part number
Chain oil	1	0.38 L tank. Aztec Oils match: AGRITEC CHAINSAW 100XT	check your handbook

Step-by-step

Daily: check the chain is getting oil.
Pump setting (engine off): factory setting is position 2. Husqvarna recommends position 1 for 13-15 in bars, 2 for 15-18 in and 3 for 18-20 in. Clockwise reduces flow.
Monthly: empty and clean the inside of the fuel tank and the oil tank.

Tools: Screwdriver or combination spanner

Muffler and spark arrestor mesh clean

Engine · every month

Husqvarna's schedule says clean or replace the spark arrestor mesh weekly on mufflers that have one. A blocked mesh overheats the engine and damages the cylinder and piston. The app counts in months; Husqvarna's figure is weekly.

Part	Qty	Notes	Part number
Spark arrestor mesh	1	Check your handbook	check your handbook

Step-by-step

Engine cold. Clean the mesh with a wire brush.
Replace it if damaged. Never use the saw with the mesh missing or defective, or with a faulty muffler.

Tools: Wire brush

Cooling system and carburettor compartment clean

Engine · every month

Husqvarna says clean the cooling system with a brush once a week (daily on saws with a catalytic converter), clean the carburettor compartment weekly and the starter air intake daily. The app counts in months.

Step-by-step

Brush clean the starter air intake, air guide plate, flywheel fins, cylinder fins and cylinder cover.
Clean the carburettor compartment and around the flywheel so the Air Injection centrifugal cleaning keeps working.
On catalytic converter (E-tech) saws, clean the cooling system daily.

Tools: Brush

Vibration damping elements and chain catcher check

Safety · every month

Husqvarna's schedule says check the vibration damping elements weekly and check the chain catcher daily, replacing it if damaged.

Part	Qty	Notes	Part number
Chain catcher	1	From the parts list	537377901
Antivibration element	1	Parts list gives 503923101, 503923301 and 503854101 for different positions; check with your dealer	check your handbook

Step-by-step

Daily: check the chain catcher is undamaged and firmly attached.
Weekly: check the vibration damping units for cracks or deformation and that they are firmly attached.
Check the right hand guard for cracks.

Fuel filter replacement

Fuel · every year

Husqvarna says the fuel filter must be replaced at least once a year, and its schedule says check the fuel filter and fuel hose monthly.

Part	Qty	Notes	Part number
Fuel filter	1	From the parts list	503443201

Step-by-step

Work outdoors. Empty the fuel tank into an approved can.
Hook out the filter, fit the new one and refit.
Monthly: check the filter and fuel hose.
Refuel and move the saw away from the refuelling spot before starting.

Tools: Wire hook, Approved fuel can

Chain sharpening and depth gauges

Cutting attachment · when needed

Husqvarna's schedule says sharpen the chain and check its tension and condition daily. Adjust the depth gauges every third sharpening. The manual's filing table gives a depth gauge setting of 0.65 mm (0.025 in) for H25, H30 and H42 chains.

Part	Qty	Notes	Part number
Depth gauge tool / file gauge	1	From the manual's filing table (H25, H30, H42)	505698100
File holder kit for H25 and H42 chains	1	From the manual's filing table; H30 uses 505698108	505698109

Step-by-step

Wear gloves.
File H25 and H30 chains with a 4.8 mm (3/16 in) file at a 30° filing angle; H42 with a 5.5 mm (7/32 in) file at 25°. File holder angle 10°.
File from the inside of each cutter outwards; keep all cutters the same length.
Every third sharpening, check and file the depth gauges to 0.65 mm (0.025 in) with the depth gauge tool and a flat file.
Replace the chain when the cutting teeth are worn down to 4 mm.
Tension the chain so it is snug but still pulls round by hand.

Tools: Round file 4.8 mm (H25, H30) or 5.5 mm (H42), Flat file, Gloves

Carburettor adjustment (owner limits)

Fuel · when needed

The 357 XP has L (low speed), H (high speed) and T (idle) screws. Husqvarna says the owner may set idle with T and adjust L. Fine adjustment, especially H, should be done by a qualified person with a tachometer. On carburettors with limiter caps, H can move at most half a turn. Recommended idle 2,700 rpm; maximum fast idle 14,000 rpm must not be exceeded.

Step-by-step

Clean the air filter and fit the cylinder cover first; adjusting with a dirty filter makes the mixture too lean later.
Warm the engine for 10 minutes with the bar pointing away from you and clear of the ground.
If the chain turns at idle, turn T anticlockwise until it stops. To set idle: turn T clockwise until the chain starts to turn, then anticlockwise until it stops.
L: turn clockwise to its stop; if acceleration or idle is poor, turn it anticlockwise until it accelerates and idles well.
Leave H to a qualified mechanic with a tachometer. Never force L or H past their stops; a too-lean H damages the piston and cylinder.
If you cannot stop the chain turning at idle, do not use the saw: contact your dealer.

Tools: Small screwdriver, Tachometer (dealer), Chainsaw PPE

Oils, fluids and capacities

System	Oil or spec	Capacity
Engine	Husqvarna 56.5 cc single-cylinder two-stroke, 3.2 kW, carburettor with L, H and T screws
Engine oil	Two-stroke oil mixed 1:50 (2%) with Husqvarna two-stroke oil (the manual's table also shows 3%, 1:33, for other oils). Unleaded petrol.	No separate engine oil; fuel tank 0.68 L of mix
Coolant	Air-cooled
Fuel (petrol and two-stroke oil)	Unleaded petrol with Husqvarna two-stroke oil at 1:50	0.68 L
Chain and bar oil	Chain oil with good adherence. Fill the oil tank every time you fill the fuel tank	0.38 L

Specifications


Displacement	56.5 cc (bore 46 mm, stroke 34 mm)
Power	3.2 kW at 9,600 rpm
Idle speed	2,700 rpm
Maximum fast idle speed	14,000 rpm
Spark plug	NGK BPMR 7A or Champion RCJ 7Y, gap 0.5 mm
Chain	.325 in (H25, H30) or 3/8 in (H42); 13-24 in bars
Drive sprocket	Rim, 7-tooth
Weight	5.5 kg (XP), 5.6 kg (XPG), without bar or chain

Known problems

Carbon monoxide

Husqvarna notes the catalytic muffler does not reduce carbon monoxide: never work in an enclosed or badly ventilated area.

Run-in

Avoid running at too high a speed during the first 10 hours.

Repair guides

Running in a new saw (or one with a new piston and cylinder) (Easy, First 10 hours of use): New or freshly rebuilt saw; worry about scoring the piston, or a saw that seems short of power for its first few tanks.
Catalytic muffler and spark arrestor mesh: blocked mesh, overheating and carbon monoxide (Easy, 20 minutes): Saw losing power and running hot, mesh black with carbon, muffler loose or cracked, headache or dizziness when working in a hollow or confined spot.
357 XP won't start or idles badly: choke, plug and the L, H and T screws (Moderate, 30–60 minutes): Will not fire, floods, stalls at idle, chain creeps at idle, poor acceleration or a saw that screams at full throttle.
Starter rope or recoil spring replacement (Moderate, 30–45 minutes): Rope frayed or broken, rope will not rewind, starter slips without turning the engine, or the starter pawls are blocked.
Rim sprocket, clutch drum and clutch spring replacement; brake band check (Moderate, 30 minutes (rim and bearing); 1–2 hours (clutch)): Worn rim sprocket, chain jumping or wearing fast, chain turns at idle, clutch slips or rattles, dry or noisy needle bearing, or a chain brake that is slow to stop the chain.
Chain oiler not oiling, or oil too thin or too thick (Moderate, 30–60 minutes): No oil line on a light surface after a minute at three-quarter throttle, chain oil running out before the fuel, chain dry in frosty weather, or the bar tip sprocket jammed.
Guide bar rail dressing, groove cleaning and wear check (Easy, 20–30 minutes): Saw cuts crooked, burrs or a lip on the bar rails, chain leaning over, rails worn unevenly, chain drive links touching the bottom of the groove, or a hollow under the bar tip.
Vibration damping units: check and replace (Moderate, 1–2 hours): Handles vibrate more than they used to, numb or tingling fingers, handle unit loose against the engine, cracked or deformed damping units.
Fuel filter and fuel hose replacement (Moderate, 20 minutes (filter); 1 hour (hose)): Starts but stops again, runs out of power at full throttle, purge bulb will not fill, fuel smell or leak at the tank, cracked or hard hose.

The full step-by-step guides are in Farmyard Workshop once you add your implement.

Sources

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