Husqvarna 268 Chainsaw Parts Manual

The Husqvarna 268 is a professional-grade chainsaw known for its power, durability, and reliability. This parts manual provides detailed information, diagrams, and part numbers for all components of the Husqvarna 268 chainsaw, including the engine, cutting equipment, fuel system, ignition system, and housing. Below are key sections for identification, engine parts, cutting attachment parts, fuel system, ignition system, and ordering information.

1. Model Identification & Specifications 2. Engine Assembly & Components 3. Cylinder & Piston Group 4. Fuel System Parts 5. Ignition System Parts 6. Cutting Attachment & Bar Parts 7. Chain & Sprocket Parts 8. Housing & Handle Parts 9. Maintenance & Service Intervals 10. Safety Components 11. Parts Ordering & Support

Model Identification & Specifications

Key identifiers: Model number 268, serial number location on crankcase. Engine type: 2-stroke, air-cooled.

Specification	Description
Displacement	66.7 cc (4.07 cu. in.)
Power Output	4.3 kW (5.8 hp)
Fuel Tank Capacity	0.85 L (0.22 US gal)
Oil Tank Capacity	0.35 L (0.09 US gal)
Recommended Bar Length	15" to 24" (38 cm to 61 cm)
Chain Pitch	3/8" or .325"
Weight (Powerhead)	6.3 kg (13.9 lbs) without cutting equipment
Ignition System	Electronic, SEM or Bosch
Carburetor	Walbro HDA or equivalent
Spark Plug	Champion RCJ7Y or NGK BPMR7A

Engine Assembly & Components

Complete engine assembly includes crankcase, cylinder, piston, crankshaft, bearings, and seals.

Crankcase Assembly: Includes crankcase halves, screws, and gaskets.
Crankshaft: Main shaft with connecting rod and bearings.
Bearings & Seals: Main bearings (6202 C3), clutch-side seal, flywheel-side seal.
Engine Mounts: Anti-vibration mounts and brackets.

WARNING! Engine components are under high stress; inspect for cracks or wear. Use genuine Husqvarna parts for replacement.

Cylinder & Piston Group

Cylinder: Chrome-plated bore. Piston: Aluminum with two piston rings.

Cylinder: Part number 501 87 41-01 (includes cylinder, decompression valve port).
Piston: Part number 501 87 42-01 (includes piston, rings, wrist pin).
Wrist Pin Bearing: Needle bearing (part number 503 87 95-01).
Cylinder Gasket: Base gasket (part number 503 87 96-01).

CAUTION! Measure cylinder wear and piston clearance during rebuild. Replace if out of specification.

Fuel System Parts

Fuel Tank: Polyethylene tank with cap and vent.
Carburetor: Walbro HDA 120B (part number 501 87 43-01).
Fuel Filter: In-tank filter (part number 501 87 44-01).
Fuel Lines: Supply and return lines (part number 501 87 45-01).
Impulse Line: Connects crankcase to carburetor pump.
Air Filter: Two-stage foam and mesh (part number 501 87 46-01).
Throttle Linkage: Throttle rod, springs, and control lever.

Ignition System Parts

Electronic ignition system: Flywheel, ignition coil, spark plug wire, stop switch.

Flywheel: Part number 501 87 47-01 (with magnets and keyway). Ignition Coil: SEM or Bosch (part number 501 87 48-01). Spark Plug Boot: High-tension wire and boot. Stop Switch: Grounding switch mounted on handle. Wiring Harness: Connects coil, switch, and optional accessories.

Cutting Attachment & Bar Parts

Guide bar, bar nuts, clutch cover, chain tensioner, and bar studs.

Guide Bar: Husqvarna branded bars in various lengths (part numbers vary by length/type).
Bar Nuts: M8 flange nuts (part number 501 87 49-01).
Clutch Cover: Outer cover with chain brake (part number 501 87 50-01).
Chain Tensioner: Screw and pin assembly (part number 501 87 51-01).
Bar Studs: Mounting studs for bar (part number 501 87 52-01).

Tip: Match bar groove width to chain gauge. Ensure bar rails are dressed and groove clean.

Chain & Sprocket Parts

Drive sprocket, rim sprocket, clutch drum, and chain.

Drive Sprocket: 7-tooth spur sprocket (part number 501 87 53-01) or rim sprocket system.
Rim Sprocket: .325" or 3/8" rim (part number 501 87 54-01).
Clutch Drum: Drum with bearing (part number 501 87 55-01).
Chain: Husqvarna H30 or H32 chain in various pitches (part numbers vary).
Clutch Assembly: Centrifugal clutch with springs and shoes (part number 501 87 56-01).
Chain Brake Band: Internal band for chain brake (part number 501 87 57-01).

WARNING! Replace worn sprockets to prevent chain wear and kickback. Always use matched chain and bar.

Housing & Handle Parts

Main housing (crankcase cover), front handle, rear handle, anti-vibration elements, and covers.

Maintenance & Service Intervals

Regular maintenance ensures longevity. Refer to service manual for detailed procedures.

CAUTION! Disconnect spark plug before performing maintenance. Use proper tools.

Safety Components

Chain brake, throttle lockout, right-hand guard, spark arrestor (if equipped).

Parts Ordering & Support

Issue	Common Cause	Parts Solution
Engine lacks power	Worn piston/cylinder	Replace piston kit (501 87 42-01) and cylinder if scored.
Hard starting	Faulty ignition coil	Replace ignition coil (501 87 48-01).
Oil leakage	Crankcase seals	Replace clutch-side and flywheel-side seals.
Chain won't tension	Worn tensioner	Replace tensioner assembly (501 87 51-01).
Excessive vibration	Failed AV mounts	Replace anti-vibration mounts and buffers.

Ordering: Use exact part numbers from this manual. Contact authorized Husqvarna dealer.

Support: Husqvarna USA: 1-800-487-5962; www.husqvarna.com/us/support