Lubrication; Maintenance And Inspection - Hitachi DH 36DBL Handling Instructions Manual

● Possible causes of sudden overburdening
Tool bit biting into material
1
Impact against nails, metal or other hard objects
2
Tasks involving prying or any excess application of pressure, etc.
3
Also, other causes include any combination of the aforementioned.
● When the reactive force control (RFC) is triggered
When the RFC is triggered and the motor stops, turn off the tool's switch and remove the
cause of the overburdening before continuing operation.

LUBRICATION

Low viscosity grease is applied to this rotary hammer so that it can be used for a long period
without replacing the grease. Please contact the nearest service center for grease replacement
when any grease is leaking form loosened screw.
Further use of the rotary hammer despite the grease shortage causes damage to reduce the service life.
CAUTION
A specifi c grease is used with this machine, therefore, the normal performance of
the machine may be badly aff ected by use of diff erent grease. Please be sure to let
one of our service centers to undertake replacement of the grease.

MAINTENANCE AND INSPECTION

CAUTION
Be sure to turned off the switch and remove the battery before maintenance and
inspection.
1. Inspecting the tool
Since use of as dull tool will degrade effi ciency and cause possible motor malfunction,
sharpen or replace the tool as soon as abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened. Should
any of the screws be loose, retighten them immediately. Failure to do so could result in
serious hazard.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the power tool. Exercise due care to ensure the
winding does not become damaged and/or wet with oil or water.
4. Cleaning on the outside
When the power tool is stained, wipe with a soft dry cloth or a cloth moistened with soapy
water. Do not use chloric solvents, gasoline or paint thinner, for they melt plastics.
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