Husqvarna 41 Chainsaw Parts Manual

The Husqvarna 41 is a lightweight, professional-grade chainsaw designed for demanding forestry and arborist work. This parts manual provides detailed diagrams, part numbers, and ordering information for all components of the Husqvarna 41 chainsaw, including the engine assembly, cutting equipment, fuel system, ignition system, and housing. Below are key sections for identification, engine parts, cutting attachments, maintenance, and ordering.

1. Model Identification & Specifications 2. Engine Assembly & Components 3. Cutting Equipment & Bar/Chain 4. Fuel System & Carburetor 5. Ignition System & Electrical 6. Housing, Handles & Covers 7. Maintenance & Replacement Intervals 8. Exploded Diagrams 9. Part Number Index 10. Safety & Operational Notes 11. Troubleshooting & Service

Model Identification & Specifications

Key identifiers: Model 41, serial number location on crankcase. Engine type: 2-stroke, air-cooled.

SpecificationDescription
Displacement41 cc
Power Output2.1 kW (2.8 hp)
Fuel Tank Volume0.47 L
Oil Tank Volume0.26 L
Recommended Bar Lengths13" to 16" (33 cm to 40 cm)
Chain Pitch3/8" or .325"
Weight (powerhead)4.7 kg (10.4 lbs)
Ignition SystemElectronic (SEM)
CarburetorWalbro or Zama
Spark PlugChampion RCJ7Y or equivalent

Engine Assembly & Components

Cylinder, piston, crankshaft, bearings, seals, and associated hardware.

  1. Cylinder Assembly: Includes cylinder, decompression valve, and mounting studs.
  2. Piston Assembly: Piston, rings, wrist pin, and circlips.
  3. Crankshaft & Bearings: Main crankshaft, ball bearings, and oil seals.
  4. Crankcase: Upper and lower halves with gasket.
  5. Recoil Starter: Assembly with pulley, spring, and rope.

WARNING! Engine components are under high stress. Use genuine Husqvarna parts for replacement to ensure performance and safety.

Cutting Equipment & Bar/Chain

Guide bar, saw chain, drive sprocket, clutch, and chain tensioning system.

  1. Guide Bar: Part numbers for various lengths (13", 15", 16") and tip types.
  2. Saw Chain: Lo-Pro (3/8" LP) or standard 3/8" pitch, number of drive links specified.
  3. Drive Sprocket: Rim sprocket or spur sprocket assembly.
  4. Clutch Assembly: Centrifugal clutch with springs and drum.
  5. Chain Tensioner: Screw, pin, and adjuster assembly.

CAUTION! Always match chain pitch and gauge to the guide bar. Incorrect pairing causes excessive wear and risk of breakage.

Fuel System & Carburetor

Ignition System & Electrical

Ignition coil (SEM), spark plug, stop switch, and wiring harness.

Ignition Coil: Part number for SEM electronic ignition module with air gap specification.
Spark Plug Boot: High-tension lead and boot.
Stop Switch: On/Off switch assembly and contact.
Wiring: Harness connecting coil, switch, and grounding points.

Housing, Handles & Covers

Main housing (crankcase cover), front/rear handles, anti-vibration mounts, and protective covers.

  1. Turn off chainsaw and ensure spark plug is disconnected before disassembly.
  2. Note placement of anti-vibration buffers and rubber mounts.
  3. Identify left and right side covers, clutch cover, and chain brake assembly (if equipped).

Tip: Label screws and small parts during disassembly to ensure correct reassembly.

Maintenance & Replacement Intervals

Recommended service intervals for key wear parts.

  1. Air Filter: Clean every 10 operating hours; replace if damaged.
  2. Spark Plug: Check/replace every 50 hours.
  3. Fuel Filter: Replace every 100 hours or annually.
  4. Chain & Bar: Inspect for wear daily; dress bar rails weekly.
  5. Drive Sprocket: Replace every 2-3 chains or if visibly worn.
  6. Clutch Springs: Inspect every 200 hours.
  7. Cylinder & Piston: Inspect compression annually; decarbon as needed.

WARNING! Use only Husqvarna-approved bar and chain oil. Regular maintenance is critical for safe operation.

Exploded Diagrams

Refer to diagrams for part location and assembly order. Diagrams included for: Engine Group, Fuel System, Ignition Group, Cutting Attachment, Housing Group.

Part Number Index

Alphabetical listing of common parts with numbers.

Part DescriptionHusqvarna Part Number
Piston Assembly (41cc)503 87 47-01
Cylinder Kit537 27 40-02
Carburetor Repair Kit (Walbro)530 03 61-01
Air Filter503 87 65-01
Ignition Coil (SEM)544 11 86-01
Clutch Assembly501 87 45-01
Drive Sprocket (Rim, 3/8")501 87 66-01
Guide Bar, 15" (38cm)501 87 71-15
Chain, 3/8" LP, 56DL501 87 74-56
Anti-Vibration Buffer Set501 87 33-01

Safety & Operational Notes

Always wear appropriate PPE. Use correct fuel/oil mix (50:1 Husqvarna XP+ oil). Maintain chain sharpness and tension. Ensure chain brake functions if equipped.

CAUTION! Never operate a chainsaw with damaged or missing safety features. Replace worn handles and anti-vibration elements.

Troubleshooting & Service

SymptomPossible CauseCorrective Action
Engine won't startFuel, spark, compressionCheck fuel mix, spark plug, carburetor settings, and decomp valve.
Engine runs poorlyClogged filter, carb adjustmentClean/replace air/fuel filter; adjust H/L carb screws per manual.
Chain doesn't turnClutch, sprocket, brake engagedInspect clutch springs/wear; check sprocket; disengage chain brake.
Excessive vibrationAV buffers, loose partsReplace anti-vibration buffers; tighten all housing screws.
Oil not feeding to barOil pump, passages, filterCheck oil pump drive, clean oil passages, replace oil filter.

Service: For technical support and genuine parts, contact Husqvarna authorized dealers or visit www.husqvarna.com.

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