The Mac 3516 is a professional-grade chainsaw featuring a 35cc 2-stroke engine, 16-inch guide bar, automatic oiling system, anti-vibration handles, and a chain brake for safety. This manual provides detailed parts identification, assembly instructions, maintenance procedures, and troubleshooting for the Mac 3516 chainsaw. Below are key sections covering parts diagrams, specifications, assembly, operation, maintenance, and safety.
Key components: Engine Assembly, Guide Bar, Cutting Chain, Chain Brake Handle, Throttle Trigger, Oil Tank, Fuel Tank, Air Filter, Spark Plug, Muffler, Starter Assembly.
| Part Number | Description |
|---|---|
| 3516-001 | Cylinder & Piston Assembly |
| 3516-002 | Crankshaft & Connecting Rod |
| 3516-003 | 16-Inch Guide Bar |
| 3516-004 | Cutting Chain (3/8" pitch, .050 gauge) |
| 3516-005 | Chain Sprocket |
| 3516-006 | Automatic Oiling Pump |
| 3516-007 | Chain Brake Band |
| 3516-008 | Air Filter Element |
| 3516-009 | Carburetor Assembly |
| 3516-010 | Spark Plug (NGK BPMR7A) |
Unpack and inspect all parts. Assemble on a clean, flat surface.
WARNING! Always wear cut-resistant gloves during assembly. Ensure chain brake is disengaged before starting.
Starting Procedure: Engage chain brake, set choke, pull starter cord. Operation: Disengage brake, squeeze throttle trigger. Safety Features: Chain brake, throttle lockout, anti-vibration system.
Safety Rules: Always wear PPE (helmet, goggles, gloves, chaps). Maintain firm grip with both hands. Never operate above shoulder height. Keep bystanders at least 10 meters away. Shut off engine when not cutting.
| Interval | Task |
|---|---|
| Before each use | Check chain tension, inspect for damage, test chain brake |
| Every 5 hours | Clean air filter, check spark plug |
| Every 10 hours | Clean cooling fins, inspect fuel filter |
| Every 20 hours | Clean spark arrestor screen, sharpen chain |
| Every 50 hours | Replace fuel filter, inspect clutch drum |
| Seasonally | Drain fuel for storage, lubricate throttle linkage |
Adjust idle speed (L) and high speed (H) screws using a small screwdriver.
CAUTION! Improper adjustment can cause engine damage. Use tachometer for precise RPM measurement.
Chain Sharpening: Use round file matching chain pitch (5/32" for 3/8" chain). File each cutter at 30° angle. Bar Maintenance: Clean bar groove weekly, flip bar monthly for even wear.
Chain Tension: Proper tension allows chain to snap back when pulled from bar. Adjust tensioning screw when chain is cold.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | No spark, flooded, fuel issue | Check spark plug, wait if flooded, clean carburetor |
| Engine runs poorly | Dirty air filter, carb adjustment | Clean/replace filter, adjust carburetor |
| Chain doesn't turn | Brake engaged, clutch worn | Disengage brake, inspect clutch assembly |
| Excessive vibration | Loose components, unbalanced chain | Tighten all fasteners, balance chain |
| Chain won't stay sharp | Dull chain, hitting ground | Sharpen properly, avoid contact with dirt |
| Oil not dispensing | Clogged oil port, pump failure | Clean oil passages, replace pump |
Genuine Mac parts ensure optimal performance. Order using part numbers from this manual.
Ordering: Contact authorized Mac dealers or visit www.macchainsawparts.com. Provide model number (3516) and part number.
Mac 3516 carries a 2-year limited warranty covering defects in materials/workmanship. Warranty void if used commercially, modified, or improperly maintained. Keep purchase receipt for warranty claims.
Support: For technical assistance, contact Mac Customer Service at 1-800-555-3516 or email [email protected].