Delta GR150 instruction manual Flexible Lamp, Grinding Wheels, Dressing a Grinding Wheel

Page 10

FLEXIBLE LAMP

The flexible lamp operates independently of the grinder. To turn the lamp on and off, rotate switch (A) Fig. 10.

To reduce the risk of fire, use 40 watt or less, 120 volt, reflector track type light bulb (not supplied). A standard household light bulb should not be used. The reflector track type light bulb should not extend below the lamp shade.

GRINDING WHEELS

The use of accessories and attachments not recommended by Delta may result in risk of injuries. Grinding wheels used with this grinder should be rated for 3600 RPM or higher and

be 6" (152 mm) in diameter with a 1/2" (12.7 mm) arbor hole.

A

Fig. 10

Two aluminum oxide grinding wheels are supplied with your grinder; one 36 grit and one 60 grit. For best grinding results, and to maintain good balance, always keep the wheels properly dressed. Do not force the work against a cold wheel. The grinding wheel should always be run at idle speed for one full minute before applying work. It is recommended that only balanced wheels be used with your grinder. The use of balanced wheels adds years to the life of the bearings on the grinder and by eliminating the most common source of vibration, more accurate work is accomplished.

ALWAYS maintain a distance of 1/8" (3.2 mm) or less between the grinding wheel and the tool rest. Adjust the tool rests and spark guards as the grinding wheels decrease in size with use.

DRESSING A GRINDING WHEEL

When dressing a grinding wheel use a suitable silicon (A) carbide stick type dresser (B), as shown in Fig. 11. Move the dresser forward on the tool rest (D) until it touches the high point on the face of the wheel (C). Dress the wheel by moving the dresser back and forth. Repeat this operation until the face of the grinding wheel is clean and the corners of the wheels are square.

ALWAYS maintain a distance of 1/8" or less between the grinding wheel and the tool rest. Adjust the tool rests and spark guards as the grinding wheels decrease in size with use.

B

Fig. 11

A

C

D

CHANGING THE GRINDING WHEELS

Disconnect machine from power source!

1.Remove the screws (A) Fig. 12 and the side covers (B) from the grinding wheel.

2.To prevent shaft rotation, place a wedge between the grinding wheel (C) and the tool rest (D).

NOTE: To remove the left grinding wheel, turn the arbor

 

 

 

 

 

nut clockwise (toward the front) to loosen. To remove the

 

 

 

 

 

 

 

 

 

C

right grinding wheel, turn the arbor nut counter-clockwise

 

 

 

 

(toward the front) to loosen.

 

 

 

 

 

3. If the replacement wheel does not require the arbor

 

 

 

 

 

bushing, save it for future use.

 

 

B

 

 

A

 

 

 

 

 

 

 

 

 

 

 

4. To install a new wheel, reverse the procedure.

 

 

 

Do not overtighten the wheel nuts

 

 

D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

when installing

grinding wheels. Tighten the wheel nuts

 

 

 

enough to drive the wheel and prevent slippage.

 

 

 

Fig. 12

 

 

 

 

 

 

 

 

10 - English

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Contents GR150 Important Safety Instructions Table of ContentsSafety Guidelines Definitions General Safety Rules Stay ALERT, Watch What YOU are DOING, and USEAdditional Safety Rules Do not Overtighten Wheel NUTMotor Specifications Power ConnectionsGrounding Instructions Extension Cords Functional DescriptionForeword Carton Contents Assembly Fastening Grinder to Supporting Surface OperationStarting and Stopping Grinder Dressing a Grinding Wheel Flexible LampGrinding Wheels Changing the Grinding WheelsFailure to Start Troubleshooting MaintenanceKeep Machine Clean Lubrication & Rust ProtectionAccessories ServiceWarranty Mesures DE Sécurité Définitions LES Instructions Importantes DE SureteLA Proposition DE Californie Règles DE Sécurité Générales ET DE LOUÏE. Utilisez Toujours DES Lunettes DERègles Spécifiques Additionnelles DE Sûreté NE PAS Trop Serrer L’ÉCROU DE LA MeuleSpécifications DU Moteur Raccordements ÉlectriquesGrounding Instructions Instructions DE Mise À LA Terre Cordon DE Rallonge Description FonctionnelleAVANT-PROPOS Contenus DE Boite Désemballage ET NettoyageAssemblage Fixation DE LA Meule SUR LA Surface Portante FonctionnementDémarrage ET Arrêt DE LA Meuleuse Meules Remplacement DES MeulesUtilisation DE LA Lampe Flexible Dressage D’UNE MeuleDepannage Utilisation DE LA MachineEntretien Accessoiries GarantiePautas DE SEGURIDAD/DEFINICIONES Instrucciones DE Seguridad ImportantesProposición DE California Normas Generales DE Seguridad Normas Específicas Adicionales DE Seguridad No Apriete Excesivamente LA Tuerca DE LA Rueda DE AmolarEspecificaciones DEL Motor Conexiones a LA Fuente DE AlimentaciónInstrucciones DE Conexión a Tierra Cordones DE Extensión Descripción FuncionalPrologo Contenido DE Carton Desempaquetado Y LimpiezaEnsamblaje Afianzando LA Rectificadora a LA Superficie DE Apoyo OperaciónArrancando Y Deteniendo LA Rectificadora Acabando UNA Rueda Rectificadora Lampara FlexibleRuedas Rectificadoras Cambio DE RuedasLocalizacion DE Fallas Utilizar LA MaquinaMantenga LA Máquina Limpia MantenimientoServicio Falla EN EL EncendidoAccesorios Garantia