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 oversigt
Continuous abnormal grinding, knocking, or scraping noises occur at no load with the bit removed.
Sandsynlige grundårsager
- 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
Hurtige tjek
- No-load operation is smooth except for normal motor sound and an occasional direction-change click.
Reparationsforhåndsvisning
1.
Dette er en forhåndsvisning af fejlfindingvejledningen, der er inkluderet i den fulde reparationsmanual.
Relaterede symptomer
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
Inkluderet i den fulde manual
- root cause analysis
- tools needed
- step-by-step repair procedure
- diagrams
- exploded views
- post-repair checks
Offentlige sider viser kun en forhåndsvisning. Køb den fulde manual for at downloade komplette reparationstrin, diagrammer og verifikationsprocedurer.