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58-92-5305 d1 

022005

Cat. No. 5339-20

SDS Max Demolition Hammer

Cat. No. 5342-20

SDS Max Rotary Hammer

MILWAUKEE ELECTRIC TOOL CORPORATION

13135 W. LISBON ROAD • BROOKFIELD, WISCONSIN 53005-2550

REPAIR

INSTRUCTIONS

Summary of Contents for 5339-20

Page 1: ...92 5305 d1 022005 Cat No 5339 20 SDS Max Demolition Hammer Cat No 5342 20 SDS Max Rotary Hammer MILWAUKEE ELECTRIC TOOL CORPORATION 13135 W LISBON ROAD BROOKFIELD WISCONSIN 53005 2550 REPAIR INSTRUCTI...

Page 2: ...he maintenance work perform an initial check with a high voltage test Before performing repair work disconnect the power cord from the electrical outlet Disassembly Removing the auxiliary handle 1 Rem...

Page 3: ...4 damping ring 5 interlock sleeve 6 Removing levering off damping ring 5 prior to removing retaining rings 3 will be an alternative method of spindle disassembly Removing the interlock elements 1 Depr...

Page 4: ...es light hammer blows at each of the four screw holes Striking seal re tainer with heavy blows can damage retainer Disassembling the seal retainer 1 Remove outer o ring 2 from seal retainer 1 2 Remove...

Page 5: ...pulling it from the front of the gear box in direction of arrow In case of stiffness lightly tap gear box 2 with a plastic face hammer Spindle assembly 1 will be released in direc tion of arrow Chise...

Page 6: ...owing parts from spindle D roller race 1 washer 2 o ring 3 attachment washer 4 2 Remove four rollers C with a magnetic screwdriver from spindle D In case of stiffness remove rollers C with light taps...

Page 7: ...embling the motor hous ing 1 Remove the two screws 1 from service cover 2 and remove service cover 2 in direction of arrow 2 Lift springs 3 on both sides of carbon brush cover and pull carbon brushes...

Page 8: ...cing discs A 6 Remove bearing cup D and press off bearing C If armature fan 9 requires removal use service fixture A 61 10 0011 as illustrated Follow fan reassembly pro cedure Removing the crank wheel...

Page 9: ...function Disassembling the electronic component 1 Remove the four screws 1 from the handle and remove handle half 2 2 To remove cord leads remove loosen two screws 4 from switch 3 3 Remove screws 5 fr...

Page 10: ...e the following parts of the anti vibration mechanism from motor housing 8 thrust piece 1 spring 2 vibration lever 3 Caution Screw 4 and vibration spring cover 1 are under spring pressure 3 Remove two...

Page 11: ...cation Each time carbon brushes wear out and loose contact with commutator it is recommended that the ma chine be fully disassembled and all old grease removed and replaced with new grease Service mai...

Page 12: ...12 PAGE INSTRUCTIONS REPAIR 58 92 5305 d1 Lubrication Combined drill chisel hammer 5342 20...

Page 13: ...13 PAGE INSTRUCTIONS REPAIR 58 92 5305 d1 Lubrication Chisel hammer 5339 20...

Page 14: ...14 PAGE INSTRUCTIONS REPAIR 58 92 5305 d1 Sequence and torques of the screws B A C D E F G H I J K L M N...

Page 15: ...flat spiral spring G into slot H in pin of carbon brush holder as indicated in enlargement of figure meaning hook flat spiral spring G into pin in 11 o clock position Tension flat spiral spring by 1 t...

Page 16: ...ated parts over the stationary axle inside gear box 2 thrust washer 4 thrust bearing 5 thrust washer 6 4 Install crank wheel assembly 7 over gear box axle assembly in direction of arrow The clutch is...

Page 17: ...g Adhesive around the entire base of fan 360 Allow the bonding agent to cure com pletely per manufacturers instructions 3 Press bearing 6 into bearing end plate 7 and install locking ring 5 4 Install...

Page 18: ...rque 1 3 Nm 12 in lbs Slant service lid 1 slightly when install ing and tighten screws torque 1 3 Nm 12 in lbs Note Carbon brush set consists of two brushes one brush has a secondary lead incorporated...

Page 19: ...r 8 and insert the assembly into striker guide 6 The short end of striker 8 must face the nosepiece The striker 8 must protrude the striker guide 6 approx 0 5 mm 4 Install striker guide assembly 6 7 8...

Page 20: ...do the following Run the tool at the highest speed G on the dial switch for 10 minutes Immediately re move gear box cover and insert recommend ed nylon plastic block into gear box to prevent gears fr...

Page 21: ...o gear box 2 Chisel hammer Installing the spindle 1 To prepare place o ring 1 washer 2 and locking ring 3 into gear box 5 2 Install complete spindle assembly 4 into gear box 5 and lead it through o ri...

Page 22: ...e top gear box cov er 1 Install gasket 3 into the gear box 4 Mind the right position Gasket 3 is in accordance with the gear box pre formed and fits the groove of the gear box 4 exactly 2 Install gear...

Page 23: ...ve been assembled incor rectly or is in a bind Assembling the seal retainer 1 Install outer o ring 2 on seal retainer 1 2 Press inner seal ring 3 into seal retainer 1 Inner seal ring 3 must be pressed...

Page 24: ...washer 4 2 Install retaining ring 3 if necessary use two screwdrivers for support Retaining ring 3 must lock into groove 7 of spindle 3 Install sleeve 2 in direction of arrow 4 Depress sleeve 2 and in...

Page 25: ...h sides and install handle 4 2 Insert screw 1 and screw down knob 3 Installing the auxiliary handle 1 Screw down the auxiliary handle 1 1 3 4 2 1 TEST RUN Run tool for a 5 minute run in period ELECTRI...

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