failure mode
FM-21: FM-21 INTERNAL GRINDING, KNOCKING, OR SCRAPING AT NO LOAD
Continuous abnormal grinding, knocking, or scraping noises occur at no load with the bit removed.
Diagnostisk översikt
Continuous abnormal grinding, knocking, or scraping noises occur at no load with the bit removed.
Troliga grundorsaker
- Debris or damage is present at the chuck nose
- Front support, bearing, or anvil is worn
- Reduction gears or hammer parts are damaged
- A loose internal part is contacting the rotating drive
Snabbkontroller
- No-load operation is smooth except for normal motor sound and an occasional direction-change click.
Reparationsförhandsgranskning
1.
Det här är en förhandsgranskning av felsökningsvägledningen i den fullständiga reparationsmanualen.
Relaterade symtom
With the bit removed, the driver makes continuous abnormal grinding, knocking, or scraping.
With the bit removed, the driver makes continuous 1. Remove the pack and bit; inspect the chuck nose, housing, and vents for
Ingår i fullständig manual
- root cause analysis
- tools needed
- step-by-step repair procedure
- diagrams
- exploded views
- post-repair checks
Offentliga sidor visar endast en förhandsgranskning. Köp den fullständiga manualen för att ladda ner alla reparationssteg, diagram och verifieringsprocedurer.