The Baumr-AG SX72 is a powerful 72cc professional-grade chainsaw designed for heavy-duty cutting, felling, and limbing tasks. It features a 2-stroke engine, 20-inch guide bar, automatic chain oiler, anti-vibration system, safety chain brake, and ergonomic handles. Below are key sections for safety, features, assembly, operation, maintenance, and troubleshooting.
Key components: 72cc 2-stroke engine, 20-inch guide bar and chain, automatic chain oiler, safety chain brake, anti-vibration system, side-access chain tensioner, and ergonomic front/rear handles.
| Feature | Description |
|---|---|
| Engine | 72cc 2-stroke air-cooled engine |
| Guide Bar | 20-inch professional-grade bar |
| Chain | 3/8" pitch, .050" gauge safety chain |
| Chain Oiler | Automatic with manual override |
| Safety Features | Chain brake, throttle lockout, right-hand guard |
| Anti-Vibration | Spring-mounted handles reduce operator fatigue |
| Ignition | Electronic ignition with stop switch |
| Fuel Tank | 700ml capacity |
| Oil Tank | 350ml chain oil capacity |
| Weight | 6.8 kg (without bar and chain) |
Read all instructions before use. Always wear protective equipment.
WARNING! Chainsaw kickback can cause serious injury. Always hold firmly with both hands, and do not cut with tip of bar.
Unpack and inspect all parts. Assemble guide bar and chain.
CAUTION! Ensure chain is properly installed and tensioned before starting to prevent derailment or injury.
Main controls located on top and rear handle.
Top Handle: Chain brake lever, throttle trigger lockout, throttle trigger, stop switch.
Rear Handle: Front hand guard, choke lever, primer bulb, decompression valve (if equipped), rear handle with anti-vibration mounts.
Side Panel: Side cover latch, chain tensioning screw, chain oil filler cap, fuel filler cap.
Starting procedure for cold and warm engine.
Tip: Let engine idle for 10-15 seconds before shutting off to stabilize temperatures.
Regular chain maintenance ensures optimal cutting and safety.
WARNING! Always wear heavy gloves when handling chain. Ensure saw is off and cool before maintenance.
Regular engine maintenance prolongs life and ensures reliability.
Air Filter: Clean weekly or more often in dusty conditions. Replace if damaged.
Spark Plug: Clean and gap to 0.5mm every 25 operating hours. Replace annually.
Fuel System: Use fresh fuel mix. Clean fuel filter annually. Carburetor adjustment may be required for altitude/temperature changes.
Cooling System: Keep cylinder fins clean for proper cooling.
Prepare chainsaw for storage or transport.
CAUTION! Never store chainsaw with fuel in tank for more than 30 days without stabilizer. Fuel degradation can damage carburetor.
Baumr-AG SX72 comes with a 2-year commercial warranty and 5-year domestic warranty from date of purchase when registered online. Warranty covers defects in materials and workmanship under normal use. Does not cover wear items (chain, bar, spark plug, air filter), damage from misuse, improper fuel, lack of maintenance, or unauthorized repairs. For warranty claims, contact authorized dealer with proof of purchase. For support, visit www.baumr-ag.com or contact +61 3 8765 4321.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | No spark, flooded, old fuel | Check spark plug; use fresh 50:1 mix; follow correct starting procedure. |
| Engine runs then stalls | Clogged fuel filter, carburetor issue | Replace fuel filter; clean carburetor; check fuel lines. |
| Chain doesn't turn | Chain brake engaged, clutch worn | Disengage chain brake; inspect clutch and sprocket. |
| Excessive vibration | Loose components, unbalanced chain | Tighten all bolts/nuts; balance chain by sharpening evenly. |
| Chain throws oil | Over-oiling, wrong oil viscosity | Adjust oiler screw; use recommended bar oil. |
| Poor cutting performance | Dull chain, improper filing | Sharpen chain correctly; check chain tension. |
Service Intervals: Refer to maintenance schedule in manual. Major service recommended every 100 operating hours.
Service: +61 3 8765 4321; www.baumr-ag.com