The McCulloch Timber Bear chainsaw was first manufactured in the early 1990s and quickly gained a reputation as a go-to tool for professionals in the forestry industry. It was designed to be rugged and powerful, with top-of-the-line components and user-friendly features. The Timber Bear was a popular choice for loggers and arborists, thanks to its exceptional performance and durability.
Unfortunately, the McCulloch Timber bear was eventually discontinued in 1999. Despite its relatively short lifespan, this iconic chainsaw remains a favorite among those who used it in their work. In this article, we will delve into the specifications of the McCulloch Timber bear, exploring the various features that made it such a reliable and efficient tool in the field.
Specifications
| Attribute | Specification |
|---|---|
| Year Discontinued | 1999 |
| Engine Displacement | 3.4 cu. in. (55 cc) |
| Number of Cylinders | 1 |
| Cylinder Bore | 1.81 in. (46 mm) |
| Piston Stroke | 1.38 in. (35 mm) |
| Cylinder Type | Aluminum with chrome plated bore |
| Intake Method | Piston ported |
| Weight | 18.3 lbs. with 20 in. bar & chain<br>8.3 kg with 50 cm bar & chain |
| Operator Configuration | One Man operation |
| Handlebar System | Anti-vibration |
| Chain Brake | Yes |
| Clutch | Centrifugal |
| Drive Type | Direct |
| Construction | Die cast magnesium |
| Magneto Type | Electronic, capacitor discharge type |
| Carburetor | Walbro HDB |
| Major Repair Kit | K10-HDB |
| Minor Repair Kit | D10-HDB |
| Air Filter System | Cellulose fiber element |
| Starter Type | Automatic rewind |
| Oil Pump | Automatic with manual override |
| Ignition Timing | 26 degrees before TDC |
| Breaker Point Setting | None |
| Flywheel/Coil Air Gap | 0.011 to 0.015 in. (0.27 to 0.38 mm) |
| Spark Plug Type | AC CS45T, Champion RDJ6 |
| Spark Plug Gap | 0.025 in. (0.63 mm) |
| Crankshaft Main Bearings | Ball and caged needle roller |
| Fuel Tank Capacity | 16.6 oz. (491 ml) |
| Fuel Oil Ratio | 40:1 with McCulloch oil |
| Recommended Fuel Octane | Regular |
| Mix Oil Specification | McCulloch two-cycle chain saw mix oil |
| Chain Pitch | 3/8 in. |
| Chain Type | McCulloch |
| Bar Mount Pattern | 10 link |
| Shortest Guide Bar Supplied | 16 in. (40 cm) |
| Longest Guide Bar Supplied | 20 in. (50 cm) |
| Colour Scheme | McCulloch Yellow with Black |
Features
- Powerful and reliable: The Timber bear was designed for professional use in the forestry industry and was known for its exceptional performance and durability.
- Lightweight: Despite its rugged construction, the Timber bear weighed in at just 18.3 lbs with a 20 in. bar and chain (8.3 kg with 50 cm bar and chain), making it easy to maneuver in the field.
- Anti-vibration handlebar system: This feature helped to reduce operator fatigue and improve comfort during long periods of use.
- Chain brake: The Timber bear was equipped with a chain brake for added safety during use.
- Automatic oil pump with manual override: This feature ensured that the chainsaw chain was properly lubricated during use and allowed the operator to adjust the oil flow manually if necessary.
- Electronic magneto type: The Timber bear was equipped with an electronic, capacitor discharge type magneto that provided reliable ignition during use.
- Cellulose fiber air filter: This feature helped to keep the engine clean and running smoothly during use.
Conclusion
The McCulloch Timber bear chainsaw was a highly regarded professional-grade chainsaw that was designed for use in the forestry industry. It was first manufactured in the 1990s and discontinued in 1999. The Timber bear was known for its exceptional performance, durability, and lightweight construction, making it a popular choice among professionals in the field. Its anti-vibration handlebar system, chain brake, and automatic oil pump with manual override were among the features that made it a reliable and safe tool to use.
Overall, the McCulloch Timber bear chainsaw was a highly respected tool that set the standard for professional chainsaws during its time.