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User Manual for HiKOKI DH 14DSL and DH 18DSL Cordless Rotary Hammer

Quick guide for the HiKOKI DH 14DSL and DH 18DSL cordless rotary hammer. Includes safety instructions, battery charging, operation, and maintenance.

Table of contents

Manual images

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Operating the change lever (Fig. 7) Page 3 Replacing carbon brushes (Fig. 13) Page 7

Quick guide from the manual

This manual provides essential information for the safe and efficient operation of the HiKOKI DH 14DSL and DH 18DSL cordless rotary hammers. Always read the full safety warnings before use.

General Power Tool Safety

Follow all safety warnings to prevent electric shock, fire, or serious injury. Keep the work area clean and well-lit, avoid explosive atmospheres, and keep children away. Ensure the power switch is in the OFF position before connecting the battery.

Cordless Rotary Hammer Safety

  • Wear ear protectors to prevent hearing loss.
  • Use auxiliary handles if supplied.
  • Hold the tool by insulated gripping surfaces when cutting near hidden wiring.
  • Do not touch the drill bit during or immediately after operation as it becomes very hot.
  • Ensure the battery is installed firmly.

Charging the Battery

Before using the tool, charge the battery. Connect the charger to an AC power source or a 12V DC in-car power source. The pilot lamp indicates the charging status: blinking red (before charging), continuous red (charging), blinking red (charging complete), flickering red (malfunction), or green (overheat standby).

Mounting and Operation

The tool supports various operations including rotation + hammering and rotation only. Use the change lever to select the operating mode only when the motor is at a full stop. Adjust the hammering force using the shift knob (Power/Save mode).

Operating the change lever (Fig. 7)
Operating the change lever (Fig. 7)

Maintenance and Inspection

Always turn off the switch and remove the battery before maintenance. Regularly inspect mounting screws and ensure they are tight. Inspect carbon brushes and replace them when worn to the wear limit. Keep the tool clean and store it in a place where the temperature is less than 40°C.

Replacing carbon brushes (Fig. 13)
Replacing carbon brushes (Fig. 13)

Manufacturer information

HiKOKI

Brand profile
Manufacturer website https://www.hikoki-powertools.com Support https://www.hikoki-powertools.com Manufacturer manuals https://www.hikoki-powertools.com

Practical help

Common problems

Motor stops during operation

Battery is empty (charge it) or tool is overloaded (release switch, remove cause, and resume).

Battery will not charge

Check for foreign objects in the charger connector, or let the battery cool down if it is in overheat standby mode.

Before use

  • Ensure the work area is clean and well-lit.
  • Check that the battery is fully charged.
  • Confirm no electric cables or conduits are buried in the wall/floor/ceiling.
  • Ensure the power switch is in the OFF position before inserting the battery.
  • Clean the shank portion of the drill bit.
  • Check the latching by pulling on the drill bit.

Specs in practice

No-Load Speed
0–750 min-1 (Save mode) / 0–1500 min-1 (Power mode).
Capacity (Concrete)
Maximum drilling diameter in concrete is 16 mm.

Images and diagrams

  • Fig 2: Charging the battery.
  • Fig 7: Operating the change lever.
  • Fig 10: Selecting Power/Save mode.
  • Fig 13: Replacing carbon brushes.
  • Fig 14: Securing the charger in a car.

Model compatibility

  • Use only genuine HiKOKI batteries.
  • Use only genuine HiKOKI carbon brushes (Code No. 999100).

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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.