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Milwaukee Kango 840S Service & Repair Manual

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840S
Date Code
0011L2001

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Summary of Contents for Milwaukee Kango 840S

  • Page 1 840S Date Code 0011L2001...

  • Page 2: Warranty And Liability Statement

    Service and Repair Manual Model 840S General For best performance hammers should be serviced at regular intervals, any indication that the hammer is not performing as specified should be investigated to prevent any adverse damage occuring. ALL SEALS, GASKETS, GREASE OR OTHER PARTS DEEMED NECESSARY FOR SERVICING ARE IN THE SERVICE KIT. ALL NEEDLE ROLLER BEARINGS SHOULD BE PRESSED WITH THE ROUNDED EDGE ENTERING THE BORE FIRST, AND THE PRESS TOOL PRESSING AGAINST THE FLAT SURFACE OF THE BEARING.
  • Page 3 Service and Repair Manual Model 840S EXAMPLE: Component Parts (Small #) Are Included When Ordering The Assembly (Large #). % % % % % SEE PAGE 5 FOR ADDITIONAL LUBRICATION AND SERVICE NOTES FIG. PART NO. DESCRIPTION OF PART NO. REQ. 9170 4650 00 Ball Bearing 9170 4672 80...
  • Page 4 Service and Repair Manual Model 840S % % % % % SEE PAGE 5 FOR ADDITIONAL LUBRICATION AND SERVICE NOTES NOTE: Do not wash clutch gear assembly (57). If needed, wipe off with a dry rag. Coat gearcase seal (62) with lubrication prior to placement in the gearcase (38).
  • Page 5 Service and Repair Manual Model 840S Press Needle Bearing (7) FIG. PART NO. DESCRIPTION OF PART NO. REQ. in Connecting Rod (109) 9170 3254 90 Ball Bearing so that the same amount 9170 4650 40 Ball Bearing sticks out on both sides 9170 4672 80 Vent Kit of the Rod.
  • Page 6 Service and Repair Manual Model 840S Press metal insert of fan to here. Press fan (3) onto armature (30) such that the metal insert of the fan bottoms against the fan journal shoulder of the armature shaft. After the armature assembly (30) is installed into the tool, the bearing cup (86) is to be placed on the rear armature bearing (1), (already pressed onto the...

  • Page 7: Wiring Specifications

    Service and Repair Manual Model 840S NOTE: Module wires #3 and #4 are not polarity sensitive. WIRING SPECIFICATIONS TERMINAL DESCRIPTION Code Part No. Qnty. Wire Wire Origin or Color Gauge Length Terminals, Connectors and 1 or 2 End Wire Preparation Black Blade Hsg.

  • Page 8: Electrical Testing

    Service and Repair Manual Model 840S ELECTRICAL TESTING Electrical test Before assemby all electrical parts MUST be checked for safety, and that they conform to specification. Testing the Armature (Flash Testing) Armature shaft to lamination pack 1500 Volts (min) Lamination pack to commutator 1200 Volts (min) Armatuure shaft to commutator 3000 Volts (min)

  • Page 9: Fault Finding

    Service and Repair Manual Model 840S WARNING LETHAL VOLTAGES PRESENT!! IMPORTANT On completion of the assembly, the unit must be flash tested at 4000 volts. Flash Test With the breaker completely assembled and with the switch "ON", apply 2000 volts initially and increase rapidly to 4000 volts between the main casting and one of the pins of the plug on the power supply cord.
  • Page 10 Atlas Copco Berema AB, Sickla Industriväg 1A, S-105 23 Nacka Sweden Telephone: +46 (0) 8 743 9600 Fax: +46 (0) 8 743 9650 9800 0331 01 a 54-24-1075 Drwg. 4 09/02...

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