Makita 517856-9 Armature HM1111C Rotary Hammer

Product Description

The MAKITA 517856-9 is a genuine OEM armature designed as a direct internal replacement component for the Makita HM1111C demolition hammer. The armature is the rotating electromagnetic assembly inside an electric motor that converts electrical energy into mechanical rotation. When an armature fails due to worn commutator segments, shorted windings, or physical damage, motor output drops and the tool loses power or stops running entirely. This part restores full motor function and is the correct service component for field repair of the HM1111C.

This armature is intended for use in the Makita HM1111C electric demolition hammer, a heavy-duty corded rotary hammer used in commercial and industrial concrete demolition work. Installation is performed by qualified power tool service technicians or electricians with experience in small motor repair. The part is a genuine Makita replacement, ensuring correct dimensional and electrical fit within the original motor housing assembly.

Key Features

• Genuine OEM Makita replacement armature for accurate fit and performance
• Designed specifically for the HM1111C demolition hammer motor assembly
• Restores full motor output after commutator wear, winding failure, or physical damage
• Direct drop-in replacement with correct commutator diameter and shaft dimensions for the original housing

Compatibility

Designed as a direct OEM replacement armature for the Makita HM1111C demolition hammer. No additional compatible models were specified in the available product data.

Installation Notes

Armature replacement in a demolition hammer should be performed by a qualified power tool service technician. Disconnect the tool from all power sources before disassembly. The motor housing, brush assemblies, and bearing supports must be carefully removed to access and seat the armature correctly. Refer to the Makita HM1111C service manual for disassembly sequence and reassembly torque guidance.

Technical Specifications

• Compatible Model: HM1111C
• Part Type: Armature

Standard Information

• Brand: MAKITA
• Manufacturer Part Number: 517856-9