MAINTENANCE

CHECK DAILY

Operator Presence interlock System =Start Operation

For the engine to crank, the parking brake must be on, the PTO (blades) off and traction levers in the neutral lock position. Sit in the seat and check, one by one, if the engine will crank with the parking brake off, the blades on, and either traction lever out of neutral lock.

Operator Presence interlock System - Run Operation

The operator must be in the seat for the engine to run with the parking brake off, the traction levers moved out of the neutral lock )osition, or the blades on. To check:

1.Start the engine and run at 1/2 throttle with the operator on the machine but raised off the seat.

2.One by one: move the parking brake to the OFF position, traction levers out of the neutral lock position (check each independently), and turn the blades on. Each check should kill the engine after 1/2 second. (A 1/2 second delay is built into the system to prevent engine cutout when traversing rough terrain.)

Repair machine before using if the Operator Presence Interlock System does not operate correctly in start or run.

Hardware

Tighten any nuts and bolts found loose. Replace any broken or missing cotter pins. Repair any other prob- lems before operating.

Tire pressure

Tires should be kept inflated to 14 Ibs/in2 (1.0 kg/cm2). Improper tire inflation can cause rapid tire wear and

poor traction. Uneven inflation can cause uneven cutting. Overinflation of caster tires can cause casters to "wobble" on hard surfaces.

BATTERY

r L.,,.WARNING Battery acid is caustic and fumes are explosive and can cause serious injury or death.

Use insulated tools, wear protective glasses or goggles and protective clothing when working with

batteries, Read and obey the battery manufacturer's instructions.

Be certain the ignition switch is OFF and the key has been removed before servicing the battery.

1.Verify battery polarity before connecting or dis- connecting the battery cables.

2.When installing the battery, always assemble

the RED, positive ( + ) battery cable first and the BLACK ground, negative ( - ) cable last.

3.When removing the battery, always remove the BLACK ground, negative ( - ) cable first and the red, positive ( + ) cable last.

4.Check the electrolyte level every 100 hours of operation or yearly, whichever comes first. Top off with distilled water if necessary.

NOTE: Sealed batteries cannot be checked or topped off.

,Clean the cable ends and battery posts with steel wool. Use a solution of baking soda and water to clean the battery. Do not allow the solution to enter into the battery cells.

,Tighten cables securely to battery terminals and apply a light coat of silicone dielectric grease to terminals and cable ends to prevent corrosion.

Keep terminal covers in place.

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Craftsman 127.28877, 127.28876 manual Check Daily, Battery
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127.28876, 127.28877 specifications

The Craftsman 127.28877 and 127.28876 are a pair of high-performance cordless drills designed for both professional tradespeople and DIY enthusiasts. These models exemplify the blend of power, versatility, and user-friendly design that Craftsman tools are known for.

One of the standout features of both models is their brushless motor technology. This innovation enhances efficiency, delivering more power and runtime than traditional brushed motors. It also reduces heat generation, leading to prolonged tool life. With a high-torque output, these drills can easily handle demanding applications, making them ideal for tasks such as drilling into wood, metal, and masonry.

Both models come equipped with a two-speed transmission. This feature allows users to select the optimal speed based on the specific task at hand—whether it’s high-speed drilling for smaller holes or low-speed drilling for driving larger fasteners. The variable speed trigger further provides enhanced control, enabling a precise and seamless drilling experience.

The design of the Craftsman 127.28877 and 127.28876 is ergonomic, featuring a soft-grip handle that minimizes hand fatigue during extended use. The compact and lightweight structure allows for easy maneuverability in tight spaces, making it suitable for various job sites.

Another notable characteristic is the LED work light integrated into the drills, providing illumination in dimly lit areas. This feature ensures that users can work effectively without needing to reposition other lighting sources.

Battery compatibility is another key advantage of these models. Both drills utilize the Craftsman 20V MAX battery platform, allowing users to interchange batteries between different tools within the same line. This feature not only enhances convenience but also maximizes productivity by reducing downtime due to battery changes.

Finally, the construction of the Craftsman drills includes rugged materials that resist wear and tear, assuring durability over years of use. With a combination of advanced technology, user-centered design, and robust performance, the Craftsman 127.28877 and 127.28876 are invaluable additions to any tool collection, providing reliability and efficiency for a range of projects.
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