Dewalt Angle Grinder D28115 - TYPE 1 (2016)

The DeWalt D28115 (Type 1) is a, heavy-duty, small grinder with a 13-amp cord designed for heavy metalworking, grinding, and masonry applications. Released around 2016, it supports 4.5 to 5 inches wheels and operates at a speed of 9,000 RPM. The grinder has a paddle trigger switch with lock-on functionality, tool-free adjustable guard, and an auto-off carbon brush system designed to protect the motor when the brush wears out. It also includes a Dust Ejection System which directs debris away from the internal motor area, helping reduce contamination and the Dual Abrasion Protection feature of the motor reduces wear from harsh jobsite conditions.

The D28115 uses a 5/8-11 spindle thread, making it compatible with North American standard grinding and cutting accessories. This model is a particular revision of the D28115 grinder. DeWalt often releases multiple "Types" of the same model over the years (e.g., Type 1, Type 2). They often look and work the same, but internal parts can differ, so replacement parts may not be interchangeable. Always verify both the model and Type number before ordering replacement parts.

The following are problems reported frequently by users:

• The tool's Carbon Brush Wear (Auto-Off) feature is designed to prevent damage, but it can be mistaken for a motor failure. When the brushes reach a predetermined wear limit, the tool will shut down. To resolve this, simply replace the N035676 Carbon Brushes.
• The Trigger Switch can also fail due to dust accumulation in the switch housing. Although the Dust Ejection System protects the motor, the mechanical trigger assembly can still become clogged. In this case, cleaning or replacing the switch kit is necessary.
• Power Cord Fatigue can occur when the cord is repeatedly bent at the strain relief point, causing internal wire breakage. This can lead to intermittent power loss when the tool is moved at specific angles.
• To prevent Gear Case Overheating, it's essential to perform regular "no-load" cooling runs during heavy masonry cutting. Failure to do so can cause the gear case grease to deteriorate, resulting in increased vibration and grinding noises from the spindle.

To verify the authenticity of a DeWalt D28115 Type 1, inspect the motor housing for a black-yellow nameplate. The nameplate can, typically, be found on the rear or the side of the housing near the power cord entry point. Ensure the following details are present:

• Model Number: The nameplate must explicitly state D28115.
• Type: Look for the "Type 1" designation near the model number, as Type 1 and Type 2 models use different carbon brushes.
• Date Code: For 2016 models, check for a 4-digit or 6-digit code stamped into the plastic housing or nameplate (e.g., 2016-XX-XX).
• Physical Features: Confirm the presence of a paddle switch (trigger) with a lock-off feature and a keyless adjustable guard.

Important: Always confirm both the model and Type number before ordering replacement parts. Internal components may differ between different Types (e.g., Type 1, Type 2).

• Motor: 13.0 Amp (AC/DC).
• Max Watts Out: 1700 W.
• Wheel Capacity: 4.5-5 inch.
• No Load Speed: 9,000 RPM.
• Spindle Thread: 5/8-11 inch.
• Tool Length: 13 inch.
• Weight: 4.75 lbs (2.15 kg).
• Brush Type: Auto-off brushes

Source: DeWalt D28115 Instruction Manual & Specs

To ensure optimal performance and longevity of the D28115 tool, it's essential to maintain the carbon brushes. Fortunately, the tool features Auto-off brushes that automatically stop the tool when they're worn out, protecting the motor from damage. The Quick-Change System allows for effortless wheel removal without a wrench, making maintenance easier.

Additionally, here are some useful link that provide additional information and support for repairing the DeWalt D28115 (Type 1):

PartSelect Canada - offers replacement parts, including carbon brushes, switch assemblies, and components.

Fix.com - offers a library of step-by-step repair videos for part replacement.

DeWalt product page - offers official technical specifications, safety information, and manufacturer approved operating instructions for the D28115 model.