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Makita HM1214C manual

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Table of contents for the manual

  • Page 1

    PR ODUCT P 1/ 2 0 T ECHNICAL INFORMA TION Model No. Description C ONCEPT AND MAIN APPLICA TIONS HM1214C Demolition Hammer Model HM1214C is a 10kg-class demolition hammer adapted for SDS-MAX bits. The main features are as follows: A VT (Active dynamic vibration absorber) for reduced vibration during chipping Suppression of motor speed during no-load[...]

  • Page 2

    P 2 / 2 0 R epair CA UTION: Remove the hammer bit fr om the machine and disconnect the Machine from power sour ce for safety bef ore r epair/ maintenance in accordance with the instruction manual! [1] NECESSAR Y REP AIRING TOOLS [2] LUBRICA TIONS [2] - 1 T ool holder section Fig. 1A Code No. Description Use for 1R003 Retaining ring S pliers ST-2N R[...]

  • Page 3

    P 3/ 20 R epair [2] LUBRICA TIONS [2]-2 Hammer section Apply Makita grease R.No.00 to the following portions designated with the black triangle to protect parts and product from unusual abrasion. Apply Makita grease N.No.1 and Makita grease R.No.00 to the follo wing portions designated with the black triangle to protect parts and product from unusu[...]

  • Page 4

    P 4 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-1. Chuck section DISASSEMBLING Controller cov er Handle section T ool holder cap Ring spring 26 Flat washer 30 Pressing down Flat W asher 30 with 1R363, remov e Ring spring 26. 1R363 Socket Wrench 13 Chuck cov er Release cov er slotted head screwdri ver Y ou can stand the Machine for easy repairing o[...]

  • Page 5

    P 5 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-1. Chuck section [3]-2. Barrel section DISASSEMBLING ASSEMBLING Fig. 5 Fig. 6 (1) Do the rev erse step of Disassembly . Refer to Figs. 4and 3 . Ho wever , assemble Handle section before mounting T ool holder cap. (2) Assemble T ool holder cap as illustrated in Fig.5 . Put T ool holder cap on ground, [...]

  • Page 6

    P 6 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-2. Barrel section (cont.) DISASSEMBLING ASSEMBLING Crank housing side Ring 45 O ring 36 (3pcs.) Slide slee ve Compression spring 58 T ool holder side Remov e O ring 36 and Ring 45 from Crank housing side of Cylinder 40 as illustrated belo w . Ring spring 43 still remains on the Cylinder as a stopper [...]

  • Page 7

    P 7 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-2. Barrel Section (cont.) ASSEMBLING X ring 21 O ring 23 Fluoride ring 28 (the worn one) Impact bolt In the following cases all the Rings on Impact bolt hav e to be replaced. * When carbon brush is replaced. * O ring 23 (orange) shows hrough the worn Fluoride ring 28. T aper slee ve (No.1R214) Correc[...]

  • Page 8

    P 8 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-3. T ool holder section DISASSEMBLING ASSEMBLING (1) Disassemble Chuck section as illustrated in Figs. 3 and 4 . (2) Disassemble T ool holder as illustrated in Fig . 15 . M8x30 Hex socket head bolt Separate Barrel section from Crank housing complete. And pull of f Barrel section from Barrel cover . R[...]

  • Page 9

    P 9 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-4. Bearing box section, Piston, Crank section DISASSEMBLING (1) Remov e Handle section and Controller cover to hold the machine upright. ( Fig . 2 ) (2) Separate Barrel section from Crank housing complete (the left illustration in Fig. 6 ) (3) Disassemble Cylinder section ( Fig. 7 ) (4) For repairing[...]

  • Page 10

    P 1 0 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-4. Bearing box section, Crank housing section (cont.) DISASSEMBLING Fig. 19 Even after remo ving Motor housing, Armature still remains in Crank housing complete. Disassemble Armature by striking the edge of Crank housing complete as illustrated below . Fig. 20 Fig. 21 Fig. 22 Armature (5) Disassemb[...]

  • Page 11

    Piston Connecting rod P 1 1 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-4. Bearing box section, Crank housing section DISASSEMBLING Fig. 23 Fig. 24 Filter case cov er and Filter case (Re: Fig. 20 ) can be disassembled. O ring 72 and O ring 14 can be remov ed from Bearing box complete and Grease cap Filter case Filter Filter case cover O ring 18 O [...]

  • Page 12

    P 1 2 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-4. Bearing box section, Crank housing section ASSEMBLING Lip portion of Oil seal 20 Facing the lip portion to the side of box for Ball bearing 6304LLU (large Bearing), assemble Oil seal 20 by pressing do wn until they stop. Side of box for Ball bearing 6304LLU (large bearing) Assemble Ball bearing [...]

  • Page 13

    P 1 3 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-4. Bearing box section, Crank housing section (cont.) ASSEMBLING (2) Assemble Piston together with Connecting rod to Crank shaft. Refer to the right illustration in Fig. 25 . (3) Assemble Bearing box complete as illustrated in Figs. 29 to 31 . Insert Needle bearing 1613 and Shoulder washer 8 o ver [...]

  • Page 14

    P 1 4 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-4. Bearing box section, Crank housing section (cont.) ASSEMBLING Fit the Notch of Counter shaft to the pin portion of Crank shaft by turning Counter shaft with Wrench 7. (Unless the notch of Counter shaft fits to the pin portion of Crank shaft, approx. 5mm g ap arises between Bearing box complete a[...]

  • Page 15

    1R023 1R024 P 1 5 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-5. Motor section DISASSEMBLING ASSEMBLING (1) Remov e Rear cover (with “ A VT” mark) from Crank housing complete (Re: the right illustration in Fig. 17 ) (2) Disconnecting Carbon brush from Armature’ s commutator, separate Motor housing from Crank housing complete. ( Fig. 18 ) (3)[...]

  • Page 16

    P 1 6 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-6. Electrical parts in Handle section DISASSEMBLING (1) Remov e Handle section from Crank housing and Motor housing. The following electrical P arts can be replaced as illustrated in Fig. 2 . * Switch * Controller * Power supply cord (2) Separate Handle cov er from Handle. The parts for switching m[...]

  • Page 17

    P 1 7 / 2 0 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-7. F astening torque 19 M6x30 Hex socket head bolt (1 pc.) <Note in Assembling> Applying ThreeBond 1342 or Loctite 242 to their thread, tighten Hex socket head bolts illustrated abo ve. Barrel complete Barrel cov er Gear cov er Handle Rear cov er Bearing box complete Crank housing complete M6[...]

  • Page 18

    P 18 / 2 0 R epair [4] MAINTENANCE PR OGRAM 20 22 Flat washer 39 Flat washer 30 Chuck cov er Ring spring 26 T ool holder Impact bolt Cylinder 40 1 24 25 26 29 Shoulder sleeve 32 Striker Piston 45 47 When replacing carbon brush, it is recommended to replace the following parts at the same time for longer service life of the machine. Refer to Fig. 39[...]

  • Page 19

    C ircuit diagram P 19 / 2 0 Color index of lead wires' sheath Blue Brown 3 1 T2 T1 Controller Fig. D-1 This Lead wire is white for some countries. This Lead wire is black for some countries. This Lead wire is white for some countries. This Lead wire is black for some countries. Switch T erminal Block built in Controller[...]

  • Page 20

    Brim side Brim of Brush Holder Unit W iring diagram w iring on Controller Co ver P 2 0 / 2 0 Do not protrude T erminals from the edge of Controller cov er when connecting them to Switch. Controller Cov er Sponge Pay attention not to pinch the Lead wires with the edge of Controller or Controller cov er (designated with hatching). Put Controller’ s[...]