The Black & Decker Alligator Lopper, catalog number LP1000, is an electrically powered pruning tool designed for consumer use. It is specifically intended for pruning trees and cutting small logs up to 4 inches (100mm) in diameter. This tool is classified by CSA as a Class 2C saw, suitable for infrequent use by homeowners, cottagers, and campers for general applications such as clearing, pruning, and cutting firewood. It is not intended for prolonged use, as extended operation can cause circulatory problems due to vibration.
Function Description:
The Alligator Lopper operates as a chain saw enclosed within a unique jaw design. It features a top jaw (6) and a lower jaw (7) that are designed to close, securing the branch or log during cutting. The saw chain (9) is driven by a motor and supported by a chain guide bar (8). The tool is activated by on/off switch actuators (5) and is equipped with a double switching system for safety, preventing inadvertent starting. An oiling cover (10) allows for lubrication of the chain and bar, with a chipping ejection point (9) for debris.
Important Technical Specifications:
While specific voltage and amperage ratings are not explicitly detailed in the provided text, the manual does include a "Minimum Gage for Cord Sets" table, indicating its electrical nature. It is a double-insulated tool, meaning no grounding wire is required, and it uses a two-prong plug. The tool is designed to cut logs up to 4 inches (100mm) in diameter. It uses Black & Decker replacement chain RC600.
Usage Features:
- Safety First: The manual emphasizes reading all instructions, wearing eye protection, protective gloves, non-skid safety shoes, hard hat, rubber gloves, snug-fitting clothing, and hearing protection. It warns against operating the tool while tired or under the influence of drugs, alcohol, or medication.
- Work Area: Users should keep the work area clean and well-lit, and keep children and bystanders away.
- Electrical Safety: Power tool plugs must match the outlet, and adapter plugs should not be used with earthed power tools. Users must avoid body contact with earthed surfaces, and not expose power tools to rain or wet conditions. An extension cord suitable for outdoor use is required when operating outdoors, and Ground Fault Circuit Interrupter (GFCI) protection is recommended.
- Starting and Stopping: The switch must be in the off position before plugging in. The tool is designed for two-handed use, and both switch actuators must be squeezed to turn it on. The saw chain should stop moving when the power control system triggers are released.
- Chain Tension Adjustment: The chain tension should be checked and adjusted before first use and frequently during the first two hours of use as the chain breaks in. To adjust, slacken the two chain cover retention nuts (11) with the wrench (2), allowing the chain tensioning device to push the chain bar out. The tension is correct when the chain snaps back after being pulled 1/8 inch (3 mm) away from the guide bar, with no "sag" on the underside. Over-tensioning should be avoided.
- Oiling: A high-quality bar and chain oil or SAE30 weight motor oil should be used for lubrication. Vegetable-based oil is recommended for pruning trees. The tool should be oiled before first use and every ten minutes of use by opening the oiling cover (10) and inserting the oil bottle into the oil filling hole (15) to dispense oil.
- Cutting Technique: The tool should never be used above shoulder height. Users must position themselves out of the path of falling branches and debris. It is not designed for felling trees. Cuts should begin and continue only with the chain moving at full speed. The tool should be held firmly with both hands, guided with light pressure, and cuts should always be made down from the top to avoid pinching the saw chain. When cutting limbs under tension, users should be aware of spring back.
- Kickback Safety Features: The Alligator Lopper includes a Top Jaw to cover the tip of the chain bar, a Reduced Kickback Guide Bar with a small radius tip, and a Reduced Kickback Chain designed with a contoured depth gauge and guard link. These features help reduce kickback but do not eliminate the risk entirely; users must still follow all safety precautions.
- Extension Cord: An outdoor-rated extension cord (SW-A, SOW-A, STW-A, STOW-A, SJW-A, SJOW-A, SJTW-A or SJTOW-A) of appropriate gauge is required. A knot should be made in the extension cord as shown in Figure E to prevent disconnection during operation.
Maintenance Features:
- Cleaning: Regularly remove the chain access cover (12) and clear any trapped debris. Ventilation slots should be cleaned with a dry paint brush. The tool itself can be cleaned with mild soap and a damp cloth, but no liquid should enter the tool, and it should never be immersed.
- Chain and Chain Bar Replacement: After prolonged use, the chain and/or chain bar may need replacing. Only Black & Decker replacement chain RC600 should be used. The process involves removing the two retention nuts (11), the chain access cover (12), opening the handles, pulling back the top chain cover (6), and then lifting the saw chain (9) out of the guide bar (8). Assembly is the reverse process, ensuring the chain is installed correctly with cutting teeth facing forward.
- Storage: When not in use for several months, metal components should be wiped with oil. The tool should be stored indoors in a dry, secure, and locked-up place, out of reach of children, at temperatures between 41°F (+5°C) and 104°F (+40°C), on a level, safe surface.
- Service: Any repairs, maintenance, or adjustments should be performed by authorized service centers using identical replacement parts to ensure safety and reliability. Damaged cords should be repaired by the manufacturer or an authorized agent.
- Troubleshooting: A troubleshooting section provides solutions for common issues such as the tool not starting (check fuse/breaker, extension cord), bar/chain overheating (check chain tension, lubrication), loose chain (check tension), poor cut quality (check tension, replace chain), and unit running but not cutting (check chain installation direction).
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