4 ” Z 1 C O R E D R I L L
14
General Maintenance
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Inspect electrical cords and electrical connections.
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Keep machine clean and free of debris. Do not forget to grease the drill spindle.
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Check for misalignment, binding and breakage of all moving parts. If damaged, repair tool
before use.
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Keep cutting tools sharp and clean. Sharp bits are less likely to bind and are easier to
control.
Occasional Maintenance
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Have the power tool serviced by a qualified service technician using identical replacement
parts.
o
Change motor brushes:
1) Disconnect drill from power.
2) Open rear motor cover.
3) Take out old brushes.
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If you need to, use the screw driver to nudge them out.
4) Replace with exact same size new brushes.
o
Adjusting Carriage on Optional Drilling Rig:
1) Periodically check and adjust slides as necessary.
2) Use hex wrench to loosen the lock nuts and hex screws.
3) Adjust the screws evenly while moving the handle up and down so
that there’s no free play yet not binding anywhere through its range of
travel.
4) Retighten the lock nuts.
o
Change Gear Oil:
1) Change if necessary using NLGL-2 grade grease. This service is
generally done around the 50 hour service mark.
Chapter
5
