Milwaukee 6148 6149-20 6151 6152-20 6153-20 6155-20 6154-20 6156-20 Sanding Fig, Cross Sanding

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Use backing pads, adapters, and other accessories that are:

correct size for tool and for sanding disc or grinding wheel.

rated at or above the RPM listed in the "WARNING" section on the tool's nameplate.

the proper accessory for the job.

Sanding Disc and Grinding Wheel Material

Sanding discs and grinding wheels are made of various materials and are designed for different jobs. Be sure that you choose the proper sanding disc or grinding wheel for the job you plan to do.

Selecting Sanding Discs & Grit

Refer to the table below to select the correct type of sanding disc for your job. Generally, use 24 or 36 grit for heavy stock removal; 50, 60, or 80 grit for medium stock removal and 120 grit for finishing. Always begin with a coarse grit, using successively finer grits to obtain the desired finish. See your MILWAUKEE Electric Tool Catalog for a complete list of sanding discs.

 

Aluminum

Aluminum

Ceramic

 

Oxide

Zirconia Bi-Cut

 

 

 

 

 

 

 

 

For fast cutting, gen-

Unique grit pattern is

Lasts up to 3 times

eral purpose discs

arranged in clusters

longer than Aluminum

for most metal jobs.

for faster stock re-

Oxide Discs. For

Best for cold-rolled

moval and cleaning.

general metal work-

steel, stainless steel

Ideal for removing

ing. Ideal for tough

or metals requiring

paint

from cars,

jobs.

tough, fast cutting,

boats,

etc. without

 

 

long lasting abra-

clogging.

 

 

sives.

 

 

 

 

 

 

 

 

 

Installing Backing Pad and Sanding Discs (Fig. 3)

 

 

 

 

 

 

 

Fig. 3

 

Disc nut

 

 

 

 

 

 

 

 

Sanding disc

 

 

 

Backing pad

 

 

 

 

Spindle

 

 

 

Gear case

 

 

 

 

 

 

 

 

 

1.Unplug tool and place it upside down on a level surface. Remove any accessories from spindle.

2.Slip backing pad onto spindle with flat side away from gear case.

3.Place sanding disc on backing pad and secure assembly to spindle with disc nut.

4.To tighten, press the spindle lock button while turning disc nut clock- wise with the spanner wrench provided.

5.To remove backing pad and sanding disc, unplug tool and reverse procedure.

Sanding (Fig. 4)

Fig. 4

Hold at a 5° to 15° angle

For best result use only this portion of disc

1.Use a clamp, vise or other practical means to hold your work, free- ing both hands to control your tool. Firmly grasp body of tool and side handle before starting and while tool is in operation. Allow sanding disc to come to full speed before beginning to sand.

2.Hold sander/grinder at 5° to 15° angle (Fig. 4) to ensure proper sanding pressure and control. Too great an angle will result in too much pressure and could cause excessive wear to the disc and workpiece. Too small an angle will reduce control.

3.Use long, sweeping, side to side strokes, advancing forward to produce the desired finish.

Removing Welds or Hammer Marks

When removing welds or hammer marks, limit coarse sanding to the immediate area. Use successively finer grits to smooth surface.

Cross Sanding

When finishing a surface that has been prepared by a coarse disc or wheel, sand at right angles to the strokes made by the coarser disc. Finishing marks left from previous sanding are easily seen and removed for a uniform finish. Failure to cross sand when changing from a coarse disc to a finishing disc may result in deep scratches and circular marks.

Finishing Metal

Constantly move across the surface. Work faster on curved surfaces where contact areas are smaller and pressure is greater. Flat areas may appear at the end of the stroke when pressure is too heavy. Ease up on pressure at end of each stroke and when reversing strokes.

Troubleshooting

Deep scratches and circular marks can result from:

Using too coarse a grit

Using a partially glazed disc

Dirt or loose metal on the workpiece

Failure to sand across the grain when changing from coarse to finishing discs

Failure to use closed coated discs to reduce the problem of grains working loose and scratching the workpiece

Bluish discoloration of metal surface indicates:

Excessive heat caused by circular motion in a small area

Excessive pressure

Use of worn out or glazed discs

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Contents Operators Manual Personal Safety Tool USE and Care General Safety RulesElectrical Safety ServiceSpecific Safety Rules Sanders and Grinders FunctionaldescriptionGrounding Guidelines for Using Extension CordsRecommended Minimum Wire Gauge For Extension Cords Extension CordsTool Assembly OperationSanding Disc and Grinding Wheel Material Installing Backing Pad and Sanding Discs FigTroubleshooting Selecting Sanding Discs & GritGrinding and Cut-off Wheels Installing Grinding Wheels , 9 Grinding FigUsing Wire Wheel Brushes Fig Warranty MaintenanceAccessories CleaningUtilisation ET Entretien DES Outils Conservez CES Instructions Aire DE TravailSécuritéélectrique Sécurité DES PersonnesDescriptionfonctionnelle Outil Dimension Pivot MeuleRègles DE Sécurité Particulière No de Min Dimen Calibre Sion Minimal Cat Volts AmpsCordons DE Rallonge Calibres minimaux recommandés pour Les cordons de rallongeMise À LA Terre Avertissement Directives pour l’emploi des cordons de rallongeMontage DE Loutil Avertissement Maniement AvertissementChoix des disques abrasifs et des grains Installation du disque d’appui et du disque abrasif FigComposants des Disques Abrasifs et des Meules Corindon Aluminium-Zircone Céramique Bi-CutFini du métal Ponçage des marques de soudure et de forgeagePonçage latéral Dépistage des dérangementsInstallation, retrait et réglage du garde-meule , 6 Installation de la meule , 9, etMeulage Fig Emploi des meules à tronçonner FigUtilisation des brosses à fil d’acier Fig Garantie Maintenance AvertissementAccessoires Avertissement NettoyageUSO Y Mantenimiento DE LA Herramienta Guarde Estas Instrucciones Area DE TrabajoSeguridadelectrica SeguridadpersonalReglas Especificas DE Seguridad Descripcion FuncionalTierra ¡ADVERTENCIA Extensiónes EléctricasGuías para el uso de cables de extensión Instalación del mango lateral Ensambaje DE LA Herramienta ¡ADVERTENCIAOperacion ¡ADVERTENCIA Interruptor de control de velocidad Cat. No -20 ySelección del disco y del grano abrasivo Selección del Disco de Lija y el Disco AbrasivoEl material de los discos de lijado y discos para esmerilar Discos de Oxido Discos de Sircónes De aluminio CerámicaCuando la superficie del metal se pone azulosa, esto indica Solución a los problemasAcabado en metal Esmerilando y el uso de discos abrasivosInstalación de discos abrasivos , 6 Instalación de la rueda de esmeril , 9, yEsmerilando Fig Instalación del cepillo de alambre Fig Uso de los cepillos de alambre FigGarantia Mantenimiento ¡ADVERTENCIAAccesorios ¡ADVERTENCIA LimpiezaNotas United States