Ingersoll-Rand GRP15A02P7 Assembly of the Motor and Throttle, Assembly of the Bevel Pinion Driver

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MAINTENANCE SECTION

4.Always clean every part and wipe every part with a thin film of oil before installation.

5.Apply a film of o–ring lubricant to all O–rings before final assembly.

10.Clean the threads of the Controller Assembly (22) and apply two or three drops of a thread locking compound to the threads. Thread the Controller onto the Rotor.

Assembly of the Motor and Throttle

1.Assemble the Throttle Valve Seat Support Assembly

(8).Secure the Valve Seat (12), the Valve Seat Washer (11), and the Valve Seat Lock Washer (10) with the Valve Seat Screw (9). Tighten the Valve Seat Screw between 0.75 to 2.25 ft–lb (1 to 3 Nm) torque. Apply o–ring lubricant to the Valve Support Seals

(13)before installing them on the Throttle Valve Seat Support.

2.Insert the Assembly into the large diameter of the handle, Valve Seat Screw end first.

3.Using No. 49843–146 Retainer Pliers, install the Throttle Valve Seat Support Retainer (15).

4.Press the Front Rotor Bearing (29), with Front End Plate (28), onto the rotor shaft.

5.Grasp the splined end of the Rotor (26) in leather–covered or copper–covered vise jaws.

6.Place the Cylinder (25) over the Rotor, aligning the dowel hole in the Cylinder with the dowel hole in the Front End Plate.

7.Apply a film of the recommended oil to each Vane

(27)and insert a Vane, straight edge out, into each vane slot in the Rotor. If new Vanes are required, replace the entire set.

8.Check the large inside diameter of the Rear End Plate Assembly (23) for wear. If the large inside diameter of the Rear End Plate is worn to 1.516” (38.506 mm) or larger, install a new Rear End Plate Assembly.

If the Controller Assembly must be replaced, it is furnished with a new Rear End Plate Assembly. Use only the End Plate Assembly furnished with the Controller Assembly. If the Controller is good but the Rear End Plate Assembly needs replacement, only install a new Rear End Plate Assembly. Do not use or interchange old parts with new Rear End Plate Assembly components. The End Plate, Spacer and Bearing are a matched set. Do not mix components with those of another set. The Rear Rotor Bearing is always damaged during removal and a new Rear End Plate Assembly must be installed.

9.Press the Rear End Plate Assembly onto the shaft of the controller body making certain the marked end of the Bearing faces toward the Controller or rear of the Grinder. Also make certain that the beveled end of the Spacer faces the Cylinder or front of the Grinder.

Before tightening the Controller, be certain that the dowel holes in the Cylinder and End Plate are aligned. Use the 77H–950 Controller Wrench to tighten the Controller between 7.5 and 8.0 ft–lb (10.1 and 10.8 Nm) torque. Do not exceed 8 ft–lb (10.8 Nm) torque because it could damage the Controller. Allow the thread locking compound to cure for six hours before putting the Grinder back in service.

Always check the free speed of the Grinder after it has been reassembled and before it is put back into service. Never use a Grinder with a free speed that exceeds the maximum speed listed on the Nameplate.

11.Remove the Rotor from the vise.

12.Insert the Cylinder Dowel (30) so it is flush with the face of the Front End Plate and protrudes from the back of the Rear End Plate Assembly.

13.Install a new End Plate Gasket (24) into the Throttle Handle (1).

14.Install the assembled motor into the Throttle Handle (1), making sure the Cylinder Dowel (30) aligns with the pin hole inside the Throttle Handle.

Assembly of the Bevel Pinion Driver

1.For GRP15A Models:

a.Install the Planet Gear Bearings (37) into the Planet Gears (36).

b.Install an assembled Planet Gear into one of the slots in the gear head. Make sure the shaft hole aligns in both the Planet Gear and the gear head.

c.Press the Planet Gear Shaft (34) into the hole opposite the tapered shaft hole in the gear head until it is flush with the face of the gear head.

d.Install the Rotor Pinion (35), making sure the teeth of the Planet Gear and Rotor Pinion mesh. Install the other assembled Planet Gear into the remaining slot of the gearhead. Make sure the teeth of the Planet Gear and the Rotor Pinion mesh and the shaft hole aligns in both the Planet Gear and gear head.

e.Press the other Planet Gear Shaft (34) into the hole opposite the tapered shaft hole in the gear head until it is flush with the face of the gear head. Lubricate the Gearing liberally with IRAX

No. 68–1LB Grease.

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Contents Using the Tool OPERATOR’S ManualGrinder Specific Warnings Placing Tool in Service SANDER/POLISHER Specific WarningsLubrication Model Type 27 and 28 Wheel Spindle and GuardModel Free Speed, rpm Back up Pad Spindle Manuel DE L’OPERATEUR Utilisation DE L’OUTILSignification DES Étiquettes D’AVERTISSEMENT Avertissements Spécifiques AUX MeuleusesMise EN Service DE L’OUTIL Avertissements Particuliers AUX PONCEUSES/POLISSEUSESLubrification SPÉ Cifications Modèle Vitesse à vide Plateau-support Broche Tr/mn PoucesPara Poner LA Herramienta EN SERVI- CIO Utilizació N DE LA HerramientaEtiquetas DE Aviso Avisos Específicos Sobre LAS AmoladorasAvisos Especificos DE LIJADORA/PULIDORA Para Poner LA Herramienta EN ServicioLubricació N Irax N P Irax N 1LBEspecificaciones Modelo Velocidad Placa de Reserva Eje Constante Rpm PulgadasColocando a Ferramenta EM Funcionamento Usando a FerramentaIdentificaçã O do RÓ Tulo DE Advertê Ncia Advertê Ncias Específicas Sobre a EsmeriladoraAdvertê Ncia Colocando a Ferramenta EM Funcionamento Lubrificaçã OEspecificaçõ ES Modelo Velocidade Livre Almofada Veio Rpm PolSection Maintenance Section Part Number for OrderingMaintenance Section 77H-KVLT Disassembly of the Angle Head General InstructionsFor GRG15A or GRG15M Models Disassembly of the Throttle Lever and Inlet Disassembly of the Motor and ThrottleFor GRP15A or GRS15A Models Disassembly of the Bevel Pinion Driver For GRP15A-02P-7 ModelsFor GRG15A, GRG15M or GRS15A Models Assembly of the Motor and Throttle Assembly of the Bevel Pinion DriverFor GRP15A Models Assembly of the Throttle Lever and Inlet Locking Lever AssemblyAssembly of the Angle Head For Type 27 Mounted WheelsFor Type 28 Mounted Wheels For GRP15A, GRS15A ModelsProbable Cause Solution Never operate a Grinder without an InletBushing Screen. Ingestion of dirt into Grinder can, in some cases, cause an unsafeTrouble Probable Cause Solution Rear End Plate Assembly is a matched set. SeeDisassembly and assembly instructions Do not exceed 52.5 ft-lb 71.5 Nm torque