Tools / Power Tools
HiKOKI DH 1826DC Cordless Rotary Hammer User Manual
Quick guide for the HiKOKI DH 1826DC cordless rotary hammer, covering operation modes, safety warnings, battery maintenance, and troubleshooting.
Table of contents
Quick guide from the manual
This manual provides instructions for the HiKOKI DH 1826DA and DH 1826DC cordless rotary hammers. It covers safety, operation, maintenance, and troubleshooting. Always ensure the battery is removed before performing any maintenance or changing accessories.
Operation modes
The tool features multiple operation modes selectable via the changeover switch:
- Rotation + Hammering: For drilling anchor holes, concrete, or tile.
- Rotation only: For drilling in steel or wood (requires optional drill chuck).
- Hammering only: For light-duty chiseling, groove digging, and edging.
The tool also includes an Auto Stop Function for continuous drilling, which records the time from switch ON to switch OFF to automate subsequent drilling tasks.
Reactive Force Control (RFC)
The tool is equipped with RFC to reduce jerking if the bit is suddenly overburdened. If the motor stops due to RFC, release the switch and remove the cause of the overburdening before continuing.
Battery maintenance
To extend battery life, avoid discharging completely and do not charge at high temperatures. Keep the battery terminals free of concrete dust and debris to prevent malfunctions. If the tool stops suddenly, check if the battery is overheated or if the RFC has been triggered.
Maintenance and inspection
Regularly inspect the tool for dull bits, loose mounting screws, and clean the battery compartment after drilling concrete. Use only genuine HiKOKI batteries and accessories.
Manufacturer information
HiKOKI
Practical help
Common problems
Tool does not run
Charge the battery or ensure it is securely attached until it clicks.
Tool suddenly stopped
The tool was overburdened (RFC triggered) or the battery is overheated. Let the battery cool down or remove the cause of the overburden.
Tool bits fall off or cannot be attached
Ensure the bit shank matches the tool type (SDS-plus) and is within the designated diameter range.
Battery cannot be installed
Ensure you are using a compatible Multi Volt or BSL18xx series battery.
Before use
- Ensure the work area is clean and well-lit.
- Wear personal protective equipment (dust mask, ear protection, eye protection).
- Check that the battery is fully charged and securely installed.
- Verify the correct operation mode is selected.
- Ensure the drill bit is clean and properly latched.
Specs in practice
- n0 (No-load speed)
- The rotational speed of the tool when not under load.
- Bpm (Full-load impact rate)
- The number of impacts per minute when the tool is under full load.
- φ max (Drilling diameter, max.)
- The maximum diameter of the hole that can be drilled.
Model compatibility
- Compatible with HiKOKI Multi Volt and BSL18xx series batteries.
- Existing batteries (BSL3660/3626X/3626/3625/3620 and BSL14xx series) are not compatible.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.