Mechanical faults and their elimination

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The two elements always work in pairs. A carbon or graphite plate is pressed against the collector. As a result of constant friction against the rotating collector, the plates wear out and the contact is broken. A sign of a malfunction will be sparking in the collector, perhaps the engine does not develop revolutions. Regardless of the state of wear, both plates are changed simultaneously. Most tool models have brush wear indicators that warn the user in advance.

To find a particular fault, you need to get to the required unit. Any of the sequentially removed parts is carefully inspected for the presence of:

cracks;
chips;
hangnails or scratches.
Most models are disassembled into two halves, but each of the hammer drills has its own characteristics. How to properly repair a hammer drill yourself, watch the video:



A sign of a breakdown may be:

refusal to perform a function;
extraneous sounds inside the mechanism and excessive belgium telegram data heating of the case;
modes do not switch;
grease is leaking.
Each of the signs may be a consequence of a breakdown of any of the parts, which are removed in the sequence indicated in the diagram. The tool is assembled in reverse order. Spare parts for the hammer drill should be purchased according to the specification in the service manual.

One of the reasons for mechanical failures is often insufficient maintenance of the unit, operating in difficult conditions. Preventive measures are not difficult, and the service life of the tool will be significantly extended. According to the operating rules, it is necessary:

renew gearbox lubricant every six months;
after 6 months, inspect and clean the brushes and the adjacent part of the collector;
at the end of the working day, clean the hammer drill with a vacuum cleaner;
Do not forget to apply grease to the shanks of the mortising tool to seal against dust and prevent wear of the socket.