Hitachi NR90AA Lubrication, Cold Weather Care, Testing the Nailer, Air consumption

Page 10

English

5. Air consumption

Using the Air consumption table and the Air compressor size formula, find a correct compressor size.

Air consumption table

 

psi

80

90

100

Operating pressure (bar)

(5.5)

(6.2)

(6.9)

 

(kgf/cm2)

(5.6)

(6.3)

(7)

Air consumption

ft3/cycle

.078

.088

.095

(ltr/cycle)

(2.2)

(2.5)

(2.7)

 

 

 

 

 

 

Air compressor size formula Amount of air required =number of Nailers

×average nails driven each minute per Nailer

×air consumption at given air pressure

×safety factor (always 1.2)

Example: 2 Nailers operating at 100 psi driving 30 nails per minute

Amount of air required =2 × 30 × .088 (2.5) × 1.2

=6.3 CFM (ft3/min) (180 ltr/min)

After making the calculations as shown above, you should find a compressor providing 6.3 CFM of air that is required.

LUBRICATION

It is important that the Nailer be properly lubricated. Without proper lubrication, the Nailer will not work properly and parts will wear prematurely.

Use Hitachi pneumatic tool lubricant.

Do not use detergent oil or additives. These lubricants will harm the O-rings and other rubber parts. This will cause the Nailer to malfunction.

Filter-regulator-lubricator units should always be used. Keep the lubricator filled with Hitachi pneumatic tool lubricant.

If a lubricator is not available, supply 2 – 3 drops of Hitachi pneumatic tool lubricant into the air plug on the Nailer twice a day.

COLD WEATHER CARE

Do not store the Nailer in a cold weather environment. Keep the Nailer in a warm area until beginning the work.

If the Nailer is already cold, bring it in a warm area and allow the Nailer to warm up before use.

1 Reduce the air pressure to 64 psi (4.4 bar

4.5 kgf/cm2).

2Remove all nails from the Nailer.

3Connect the air hose and free-fire (blank-fire) the Nailer.

The lowered air pressure will be enough to free-fire the Nailer.

Slow speed operation tends to warm up the moving part.

CAUTION

Do not free-fire the Nailer at high pressure.

TESTING THE NAILER

DANGER

Always wear eye protector.

WARNING

Never use Nailer unless push lever is operating properly.

Before actually beginning the nailing work, test the Nailer by using the checklist below. Conduct the tests in the following order.

If abnormal operation occurs, stop using the Nailer and contact a Hitachi authorized service center immediately.

(1)DISCONNECT AIR HOSE FROM NAILER. REMOVE ALL NAILS FROM NAILER.

ALL SCREWS MUST BE TIGHTENED. If any screws are loose, tighten them.

THE PUSH LEVER AND TRIGGER MUST MOVE SMOOTHLY.

Trigger

Push Lever

Do not connect air hose

— 10 —

Page 9 Page 11
Image 10
Page 9 Page 11
Contents Mode D’EMPLOI ET Instructions DE Securite PeligroContents Definitions of Signal Words Important InformationNever Point Nailer Toward Yourself or Anyone Else SafetyAlways Wear EYE Protector Never USE Bottled Gases Never Carry with Finger on TriggerStore Nailer Properly Keep Work Area CleanCheck for Live Wires Never USE in Presence of Flammable Liquids or GasesMaintain Nailer with Care EMPLOYER’S ResponsibilitiesDisconnect AIR Hose from Nailer When Stay AlertOperation Name of PartsStandard Accessories SpecificationsAccessories Nail SelectionBefore Operation Optional AccessoriesApplications Working EnvironmentCold Weather Care Testing the NailerLubrication Air consumptionAdjusting AIR Pressure Loading NailsNailer Operation Methods of Operation Changing the Exhaust Direction Adjusting the Nailing DepthUsing the Nose CAP Disconnect AIR Hose from NailerMaintenance and Inspection MaintenanceService and Repairs Action WHY HOW Problem Check Method CorrectionDefinition DES Mots DE Signalisation Information ImportanteSecurite AvertissementEloigner LES Visiteurs Ranger LE Cloueur CorrectementMaintenir L’AIRE DE Travail Propre Porter UN Habillement ApproprieEntretenir Soigneusement LE Cloueur Responsabilites DE L’EMPLOYEURDebrancher LE Tuyau D’AIR DU Cloueur Quand Rester SUR SES GardesUtilisation NOM DES PiecesAccessoires Standard Accessoires AvertissementSelection DES Clous Environnement DE Travail Avertissement Accessoires EN OptionAvant L’UTILISATION Alimentation D’AIREssai DU Cloueur GraissageEntretien PAR Temps Froid Consommation d’air LE Cloueur NE Doit PAS Fonctionner Reglage DE LA Pression D’AIR AvertissementChargement DES Clous Avertissement  LE Cloueur Doit FonctionnerUtilisation DU Cloueur Methodes D’UTILISATION Utilisation DU Capuchon DE BEC Reglage DE LA Profondeur DE ClouageChangement DU Sens ’ECHAPPEMENT Debrancher LE Tuyau D’AIR DU CloueurEntretien ET Reparations Avertissement EntretienEntretien ET Inspection Inspection du magasinProbleme Verification Correction Action Pourquoi CommentInformación Importante Definición DE LAS Palabras ClaveUtilice Siempre Gafas Protectoras Para LOS Ojos SeguridadAdvertencia No Utilice Nunca Bombonas DE GASMantenga a LOS Visitantes Alejados Guarde Adecuadamente EL Martillo NeumáticoMantenga EL Área DE Trabajo Limpia 11. Vístase AdecuadamenteManeje Correctamente EL Martillo Neumático Responsabilidades DEL EmpresarioPermanezca Alerta Mantenga EL Martillo Neumático CON CuidadoOperación NomenclaturaAccesorios Advertencia EspecificacionesSelección DE Puntas Accesorios EstándarAntes DE LA Operación Accesorios OpcionalesAplicaciones Entorno DE Trabajo AdvertenciaPrecaución LubricaciónCuidados Para Climas Fríos Prueba DEL Martillo Neumático PeligroAjuste DE LA Presión DE Aire Advertencia Carga DE Puntas AdvertenciaOperación DEL Martillo Neumático Métodos DE Operación Desconecte LA Manguera DE Aire DEL Martillo Neumático Ajuste DE LA Profundidad DE ClavadoCambio DEL Sentido DEL Aire DE Escape Utilice Siempre Gafas Protectoras Para LOS OjosUtilización DE LA Tapa Para EL Morro Mantenimiento E Inspección Advertencia MantenimientoMantenimiento E Inspección Inspección del cargadorProblema Método DE Comprobación Solución Acción Para CómoEspañol 5MM 3MM4MM 6MMKestrel Road Mississauga on L5T 1Z5
Top Page Image Contents