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Refer All Communications to the Nearest
Ingersoll–Rand Office or Distributor.

 Ingersoll–Rand Company 2000

Printed in U.S.A.

04576575

Form P7416
Edition 2
April, 2000

INSTRUCTIONS FOR

MODELS 2904P1, 2904P2 and 2904P4 IMPACTOOLS

Models 2904P1, 2904P2 and 2904P4 Impactools are designed for use in general
maintenance and production applications.
Ingersoll–Rand is not responsible for customer modification of tools for applications
on which Ingersoll–Rand was not consulted.

IMPORTANT SAFETY INFORMATION ENCLOSED.

READ THIS MANUAL BEFORE OPERATING TOOL.

IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PLACE THE INFORMATION

IN THIS MANUAL INTO THE HANDS OF THE OPERATOR.

FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.

PLACING TOOL IN SERVICE

Always operate, inspect and maintain this tool in
accordance with all regulations (local, state,
federal and country), that may apply to hand
held/hand operated pneumatic tools.

For safety, top performance, and maximum
durability of parts, operate this tool at 90 psig 
(6.2 bar/620 kPa) maximum air pressure at the
inlet with 3/8” (10 mm) inside diameter air supply
hose.

Always turn off the air supply and disconnect the
air supply hose before installing, removing or
adjusting any accessory on this tool, or before
performing any maintenance on this tool.

Do not use damaged, frayed or deteriorated air
hoses and fittings.

Be sure all hoses and fittings are the correct size
and are tightly secured. See Dwg. TPD905–1 for a
typical piping arrangement.

Always use clean, dry air at 90 psig maximum air
pressure.  Dust, corrosive fumes 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
label.

The use of a hose whip is recommended.  A coupler
connected directly to the air inlet increases tool
bulk and decreases tool maneuverability.

For maximum performance, the coupler on the
wall should be the next size larger than the coupler
used on the tool.  The coupler closest to the tool
should not be less than the proper air supply hose
size.

USING THE TOOL

Always wear eye protection when operating or
performing maintenance on this tool.

Always wear hearing protection when operating
this tool.

Keep hands, loose clothing and long hair away
from rotating end of tool.

Note the position of the reversing lever before
operating the tool so as to be aware of the direction
of rotation when operating the throttle.

Anticipate and be alert for sudden changes in
motion during start up and operation of any power
tool.

Keep body stance balanced and firm.  Do not
overreach when operating this tool.  High reaction
torques can occur at or below the recommended
air pressure.

Tool shaft may continue to rotate briefly after
throttle is released.

Air powered tools can vibrate in use.  Vibration,
repetitive motions or uncomfortable positions may
be harmful to your hands and arms.  Stop using
any tool if discomfort, tingling feeling or pain
occurs.  Seek medical advice before resuming use.

Use accessories recommended by Ingersoll–Rand.

Use only impact sockets and accessories.  Do not
use hand (chrome) sockets or accessories.

Impact wrenches are not torque wrenches.
Connections requiring specific torque must be
checked with a torque meter after fitting with an
impact wrench.

This tool is not designed for working in explosive
atmospheres.

This tool is not insulated against electric shock.

The use of other than genuine Ingersoll–Rand replacement parts may result in safety hazards, decreased tool
performance, and increased maintenance, and may invalidate all warranties.
Repairs should be made only by authorized trained personnel.  Consult your nearest Ingersoll–Rand Authorized
Servicenter.

GB

Summary of Contents for 2904P1

Page 1: ... The use of a hose whip is recommended A coupler connected directly to the air inlet increases tool bulk and decreases tool maneuverability For maximum performance the coupler on the wall should be the next size larger than the coupler used on the tool The coupler closest to the tool should not be less than the proper air supply hose size USING THE TOOL Always wear eye protection when operating or...

Page 2: ...orque control devices Fasteners with specific torque requirements must be checked with suitable torque measuring devices after installation with an air wrench MODEL 2904P POWER MANAGEMENT SYSTEM Dwg TPD1339 POWER SETTING INDICATORS MAXIMUM MINIMUM POWER MANAGEMENT DIAL Models 2904P1 2904P2 and 2904P4 Impactools incorporate a Power Management System that allows the operator to select four power out...

Page 3: ...gulator Unit For USA No C18 03 FKG0 28 For International C18 C3 FKG0 Do not mark any nonmetallic surface on this tool with customer identification codes Such actions could affect tool performance MAIN LINES 3 TIMES AIR TOOL INLET SIZE TO AIR SYSTEM TO AIR TOOL LUBRICATOR REGULATOR FILTER BRANCH LINE 2 TIMES AIR TOOL INLET SIZE DRAIN REGULARLY COMPRESSOR Dwg TPD905 1 Dwg TPD1674 2 AIR SUPPLY FROM C...

Page 4: ...grip 1 2 1 500 25 190 220 Max 34 258 298 Max 220 250 Max 298 339 Max 2904P4 pistol grip 1 4 hex Q C 1 500 25 200 230 Max 34 272 312 Max 230 260 Max 312 352 Max Model HSound Level dB A Vibrations Level Pressure Power m s2 2904P1 94 9 107 9 3 1 2904P2 93 7 106 7 3 1 2904P4 94 9 107 9 3 1 H Tested in accordance with PNEUROP PN8NTC1 2 Tested to ISO8662 7 loaded with frictionbrake to 9 RPM TPD2016 1 29...

Page 5: ...product to which this declaration relates is in compliance with the provisions of Directives By using the following Principle Standards Serial No Range D Vose Kevin R Morey Name and signature of authorised persons Name and signature of authorised persons Date Date SAVE THESE INSTRUCTIONS DO NOT DESTROY When the life of the tool has expired it is recommended that the tool be disassembled degreased ...

Page 6: ...MAINTENANCE SECTION 6 TPA1714 ...

Page 7: ...4P4 2112 724 23 Inlet Retainer Clip 2131 57 for 2904P2 2904P 724 24 Trigger Assembly 2131 A93 12 Hammer Case Assembly 2112 727 25 Trigger O ring 13 Hammer Case 26 Reverse Valve Assembly 2131 A329 Bushing 2112 641 27 Reverse Valve O ring top 15 Grease Fitting D0F9 879 28 Reverse Valve O ring 16 Hammer Case Gasket 2112 36 bottom blue 17 Housing Assembly 2112 A40 29 Button Kit 2112 K75 18 Housing Lab...

Page 8: ...33 2112 K36 Anvil Assembly for 2904P4 Tune up Kit includes Quick Change 2112 A926 4 illustrated items 3 3A 4 6 7 16 41 Quick Change Anvil 2112 926 4 21 22 25 27 28 33 36 and 37 2904P TK2 42 Thrust Ring Lock 5C1 853 Hammer Kit for 2904P1 43 Thrust Ring I0A902A2 932 4 includes illustrated items 8 4 44 Retaining Sleeve Spring 2U 931 4 11 2 16 and Anvil Assembly part 45 Retaining Ball 2U 696 number 21...

Page 9: ...or or strike a hard or metallic surface since it might be damaged 4 Grasp the Hammer Frame 9 and carefully lift off the entire impact mechanism making certain not to drop the two Hammer Pins 10 Disassembly of the Square Drive Anvil Model 2904P1 and 2904P2 1 Use a hooked wire to pull the Socket Retainer Spring 37 or 40 out of the end of the Anvil 35 or 38 2 Remove the Socket Retainer 36 or 39 Disas...

Page 10: ...e the Front Rotor Bearing hold the Front End Plate with Front Rotor Bearing down and tap the Front End Plate on a flat nonmetallic surface such as a work bench This will loosen the Front Rotor Bearing so that it will drop out of the Front End Plate Refer to Dwg TPD1323 Dwg TPD1323 FRONT END PLATE FRONT ROTOR BEARING BENCH WITH NONMETALLIC SURFACE 4 Remove the Rear Rotor Bearing Retainer 6 from the...

Page 11: ...the Tilt Valve 25D and Tilt Valve Spring 25C if damaged 5 Remove the Inlet Bushing Seal 25B and Inlet Retainer Clip 23 if damaged Remove Washer 25A Do not remove the Inlet Bushing Screen 21 from the Inlet Bushing unless it is damaged Clean the Inlet Bushing Screen by using a suitable cleaning solution in a well ventilated area Disassembly of the Reverse Valve Mechanism The Reverse Valve Assembly c...

Page 12: ...amage to the exhaust diffuser never clamp only the bottom of the handle 2 Always clean every part and wipe every part with a thin film of oil before installation Do not remove grease from the impact mechanism or Hammer Case 12 If the impact mechanism has not been disassembled inject Ingersoll Rand No 115 1LB Grease through the Hammer Case Grease Fitting 15 When disassembling and assembling the imp...

Page 13: ...e Reverse Valve has been rotated to the left install the right Button in the Housing When one Button has been installed push the Button in This will rotate the Reverse Valve so that the other Button can be installed Refer to Dwg TPD1333 REVERSE VALVE FORWARD BUTTON REAR OF HOUSING TAB Dwg TPD1333 If the tab on the reverse Valve has been rotated to the right install the left Button Refer to Dwg TPD...

Page 14: ...erwise the Trigger will be damaged during installation 4 Install the Trigger by pushing it into the handle until a click is heard indicating that it is properly engaged Assembly of the Motor When disassembling assembling or pulling the Motor we recommend replacement of the Motor Gasket 7 1 Install the Motor Gasket in the Housing making sure that the grooves in the tab of the Motor Gasket fit aroun...

Page 15: ...ammer Refer to Dwg TPD1535 Assembly of the Air Wrench 1 Position the Motor Housing 17 in leather covered vise jaws with the splined shaft of the Rotor in a horizontal position 2 Place the assembled impact mechanism down onto the splined hub of the Rotor 3 Position the Hammer Case Gasket 16 against the face of the Motor Housing Be sure that the flat on the bottom of the Hammer Case Gasket is instal...

Page 16: ...place End Plates if they are scored Dirty motor parts Disassemble the Tool and clean in a clean suitable cleaning solution in a well ventilated area Assemble the Tool and inject 3 cc of the recommended oil into Inlet and run Tool to lubricate internal parts Damaged Reverse Valve Replace Reverse Valve Refer to Installation of Reverse Valve Motor will not run Incorrect assembly of motor Disassemble ...

Page 17: ... 2 95380169 Ingersoll Rand Camino de Rejas 1 2 18 B1S 28820 Cosiada Madrid España Tel 34 1 669 5850 Fax 34 1 669 6054 Ingersoll Rand Nederland Produktieweg 10 2382 PB Zoeterwoude Nederland Tel 31 71 45220 Fax 31 71 218671 Ingersoll Rand Company SA PO Box 3720 Airode 1451 South Africa Tel 27 11 864 3930 Fax 27 11 864 3954 Ingersoll Rand Scandinavian Operations Kastruplundgade 221 DK 2770 Kastrup Da...

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