Instruction/ maintenance manual of the product HM0871C Makita
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Models HM0871C and HM0870C are 5kg-class demolition hammers adapted for SDS-MAX bits, and dev eloped from HM0860C, featuring: Same high work ef ficienc y as HM0860C Higher durability achie ved by usin.
P 2 / 1 7 R epair [1] NECESSAR Y REP AIRING TOOLS [2] LUBRICA TIONS Fig. 1 Code No. 1R003 Retaining ring S pliers ST -2N 1R212 T ip for Retaining ring pliers 1R005 Retaining ring R pliers R T -2N 1R089 Bearing extractor 1R023 When it is diff icult to remov e Armature from Crank housing complete.
DISASSEMBLING (1) Remov e T ool holder cap as illustrated in Fig. 2 . Remov e Handle section by loosening four 5x25 T apping screws, and then disconnect Lead unit from Controller . Stand the machine upright. While pressing down Chuck co ver , remov e T ool holder cap.
P 4 / 1 7 R epair DISASSEMBLING (1) Disassemble Chuck section. ( Figs. 2 , 3 and 4 ) (2) Removing Retaining ring R-42, disassemble T ool holder section and take out Impact bolt. ( Fig . 5 ) (3) Remove Fluoride ring 28 and O ring 23 from Impact bolt when Fluoride ring 28 is worn out as illustrated in Fig.
(1) First, disassemble Chuck section as illustrated in Fig. 2 , 3 and 4 . (2) Remov e Housing cover as illustrated in Fig . 9 . Fig. 9 Fig. 10 [3] DISASSEMBL Y/ASSEMBL Y [3]-2 T ool holder section (cont.) Housing cov er Remov e Housing cover by unscre wing M5x25 Hex sock et Head bolt.
P 6 / 1 7 R epair Fig. 11 Fig. 12 Fig. 13 Fig. 14 DISASSEMBLING ASSEMBLING [3] DISASSEMBL Y/ASSEMBL Y [3]-3 Active dynamic vibration absorber (exclusi vely f or HM0871C) (cont.) (4) The remo ved Activ e dynamic vibration absorber can be disassembled as illustrated in Fig.
P 7 / 1 7 R epair Fig. 15 Fig. 16 DISASSEMBLING [3] DISASSEMBL Y/ASSEMBL Y [3]-4 Piston, Striker , Cylinder Remov e Barrel from Crank housing M6x25 Hex sock et head bolt (4pcs.) (1) Disassemble Chuck section as illustrated in Figs 2 , 3 and 4 . (2) Remov e Housing cover as illustrated in Fig .
P 8 / 1 7 Fig. 17 Fig. 18 DISASSEMBLING [3] DISASSEMBL Y/ASSEMBL Y [3]-4 Piston, Striker , Cylinder (cont.) Remov e Cylinder section by tapping Barrel using plastic hammer . Pay attention to the tapped position. Ring 20, Rubber ring 20, Flat washer 23, Guide ring, Slide sleev e are remov ed from Cylinder section.
1. Keeping Crank shaft in the condition Crank pin is at the closest position to Barrel side, hold Armature by inserting a bar into Armature fan. P 9 / 1 7 Fig.
Crank shaft can be remov ed as illustrated below . Remov e Retaining ring R-40 with 1R005. Loosening M8x40 Hex socket head bolt halfway , insert Crank shaft into the remaining Ball bearing 6203LLU by tapping the M8x40 Hex socket head bolt. P 1 0 / 1 7 Fig.
P 1 1 / 1 7 Assemble Cylinder guide to Cylinder 32 so that O ring 46 side of Cylinder guide faces Crank housing side. (1) Cylinder section can be assembled as illustrated in Fig.
P 1 2 / 1 7 DISASSEMBLING DISASSEMBLING [3] DISASSEMBL Y/ASSEMBL Y [3]-7 Controller Controller can be remov ed as illustrated in Fig. 29 . Fig. 29 Fig. 30 Disconnect Connector From Controller . Disassemble Handle section by unscrewing four 5x25 T apping screws.
P 1 3 / 1 7 R epair DISASSEMBLING [3] DISASSEMBL Y/ASSEMBL Y [3]-8 Armature (cont.) Fig. 32 Fig. 33 Fig. 32A (6) Disassemble Armature from Crank housing as illustrated in Fig. 32 . If it is dif ficult to remov e as illustrated in Fig. 32 , Crank shaft has to be remo ved in the follo wing process.
P 1 4 / 1 7 Fig. 34 [3]-9 Handle section (1) Disassemble Handle section as per the left illustration in Fig. 29 . (2) Remov e Handle cover by unscre wing 4x18 T apping scre w to replace the electrical parts in Handle. See Fig. 34 . Power supply cord Remov e 4x18 T apping screw and Handle co ver .
P 1 5 / 1 7 R epair [3] DISASSEMBL Y/ASSEMBL Y [3]-10. F astening torque [4] MAINTENANCE PR OGRAM Replacing the following parts is recommended when Carbon brush is replaced. Wipe off the old grease in the machine, and then apply the fresh grease in accordance with [2] LUBRICATIONS .
C ircuit diagram W iring diagram P 1 6/ 1 7 Blue Lead wire is used for some countries. Brown Lead wire is used for some countries. T erminal block Power supply cord Polyethylene tube White Color index of lead wires' sheath Black Fig. D-2 Fig. D-1 HM0870C without No Load Speed Suppression Note in wiring 6 3 1 9 2 9 - 5 LO T No.
W iring diagram P 1 7 / 1 7 Fig. D-3 Handle Lead Unit Fig. D-4 Polyethylene T ube Ø8-30 Connector for connecting to Switch for connecting to T erminal block Pass the Lead wires of Lead unit through Polyethylene tube illustrated belo w .
An important point after buying a device Makita HM0871C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Makita HM0871C yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Makita HM0871C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Makita HM0871C you will learn all the available features of the product, as well as information on its operation. The information that you get Makita HM0871C will certainly help you make a decision on the purchase.
If you already are a holder of Makita HM0871C, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Makita HM0871C.
However, one of the most important roles played by the user manual is to help in solving problems with Makita HM0871C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Makita HM0871C along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
