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17

MAINTENANCE SECTION

Assembly of the Impact Mechanism

1.

Coat Hammers (48) with grease and place the two
together so that the faces having the partial recess in
the central opening contact each other and the half
notch in the edge of one Hammer aligns with the wide
notch in edge of the other Hammer.

If you are installing new Hammers or want to
change the location of exisiting Hammers to utilize
both impacting surfaces, slide the Hammers in the
Hammer Frame  so that the half–round notch on
one Hammer is located on one side of the Frame
and the half–round notch on the other Hammer is
located on the other side of the Frame.

2.

Slide the two Hammers into Hammer Frame (46).

3.

Capture the Hammers inside Frame by installing two
Hammer Pins (47) in end of the Frame opposite the
hub with the internal spline.

4.

Insert Anvil (49) into end of Hammer Frame opposite
hub with  internal spline until it seats. It may be
necessary to rotate the Anvil while moving the
Hammers. Anvil is properly positioned when
Hammers are displaced whenever the Anvil is rotated.

5.

Set assembled hammer mechanism onto rotor shaft
spline.

6.

Place Hammer Case Gasket (41) over mechanism and
against face of Motor Housing.

7.

Grease Anvil and top of the Hammer Frame.

8.

Place the Hammer Case (39) over the mechanism
assembly against Gasket.

9.

Assemble Dead Handle (50) to Dead Handle Bracket
(51). Insert two Hammer Case Cap Screws (42) with
Lock Washers (43) through Bracket and install  two
Dead Handle Bracket Spacers (52) on the Screws.
Position the assembly against Hammer Case and
thread Screws into Housing.

10. Thread remaining two Cap Screws and Lock Washers

into Housing and using an alternating pattern for all
four fasteners, tighten Screws to between 20 and
25 ft–lb (27 and 34 Nm) torque.

11. Install a new Exhaust Silencer (30) in the Exhaust

Deflector (29) and then install Exhaust Baffle (31) in
Deflector.

12. Position a new Exhaust Gasket (32) against face of

Motor Housing. Position the assembled Deflector
against Gasket and secure it by tightening the two
Deflector Screws (33).

Summary of Contents for 2934B2SP

Page 1: ...s and or excessive moisture can ruin the motor of an air tool Do not lubricate tools with flammable or volatile liquids such as kerosene diesel or jet fuel Do not remove any labels Replace any damaged...

Page 2: ...advice before resum ing use WARNING Do not carry the tool by the hose WARNING WARNING Do not use damaged frayed or deteriorated air hoses and fittings WARNING Keep body stance balanced and firm Do no...

Page 3: ...3 SPECIFICATIONS Model Type of Grip Drive Impacts per min in 2934B2SP inside trigger 1 sq dr 750 2934B9SP inside trigger 1 sq dr 780 2940B2SP inside trigger 1 sq dr 850...

Page 4: ...volatiles tels que le k ros ne le gasol ou le carburant d aviation Ne retirer aucune tiquette Remplacer toute tiquette endommag e UTILISATION DE L OUTIL Porter toujours des lunettes de protection pen...

Page 5: ...rim et d brancher le flexible d alimentation avant d installer d poser ou ajuster tout accessoire sur cet outil ou d entreprendre une op ration d entretien quelconque sur l ou til ATTENTION ATTENTION...

Page 6: ...idos inflamables o vol tiles tales como queroseno gasoil o combustible para motores a reacci n No saque ninguna etiqueta Sustituya toda etiqueta da ada USO DE HERRAMIENTA Use siempre protecci n ocular...

Page 7: ...accesorios da ados des gastados ni deteriorados ADVERTENCIA ADVERTENCIA ADVERTENCIA ADVERTENCIA ADVERTENCIA ADVERTENCIA Use siempre protecci n para los o dos cuando utilice esta herramienta Use siemp...

Page 8: ...amenta pneum tica N o lubrifique as ferramentas com l quidos inflam veis ou vol teis tais como querosene diesel ou combust vel de jactos N o remova nenhum r tulo Reponha qualquer r tulo danificado USA...

Page 9: ...gastos ou deteriorados ADVERT NCIA Mantenha a posi o do corpo equilibrada e firme N o exag ere quando operar esta fer ramenta Torques de reac o elevados podem ocorrer sob a press o de ar recomendada A...

Page 10: ...MAINTENANCE SECTION 10 Dwg TPA1249 2...

Page 11: ...ndle Gasket 2934 283 Nameplate 16 Motor Clamp Washer 2934 207 for 2934 2934SP 301 17 Rear End Plate 2934 12 for 2940 2940SP 301 18 Rear Rotor Bearing 508 97 Nameplate Screw 4 C32 302 19 Rotor 34 Rever...

Page 12: ...racket 2934 364 46 Hammer Frame Assembly 52 Dead Handle Bracket Spacer 2 2934 140 for 2934 2934 A703 Side Spade Handle for Model 2934B9SP T15 41 for 2940 2940 A703 Side Spade Handle Stud for Model 293...

Page 13: ...bly 436A90 A600 103 Grease Fitting 130SR 188 104 Bevel Pinion Assembly 436A90 A602 105 Retainer Plunger 8U 715 106 Retainer Plunger Spring 5UHD 718 107 Bevel Pinion Bearing or Bevel Gear Bearing 2 436...

Page 14: ...any part which is a press fit in or on an assembly unless the removal of that part is necessary for repair or replacement 6 Whenever grasping a tool or part in a vise always use copper covered or lea...

Page 15: ...and the Valve Plunger 7 from Handle 4 If Trigger 5 must be removed use an arbor press to push Trigger Pin 6 from the Handle and slide Trigger out of slot in Handle ASSEMBLY General Instructions 1 Alwa...

Page 16: ...sing 11 Grease Rear Rotor Bearing 18 and install it in recess of Rear End Plate 12 Remove alignment pin from assembled motor and install Cylinder Dowel 24 The Dowel is properly seated when end of Dowe...

Page 17: ...ry to rotate the Anvil while moving the Hammers Anvil is properly positioned when Hammers are displaced whenever the Anvil is rotated 5 Set assembled hammer mechanism onto rotor shaft spline 6 Place H...

Page 18: ...ol and clean all parts with a suitable cleaning solution in a well ventilated area Reassemble tool as instructed in this manual Improper positioning of Reverse Valve Make certain that Reverse Valve is...

Page 19: ...19...

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