Makita Essential Repair Tools and Lubrication for HM0871C Power Hammer

P 2/ 17

Repair

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.

[1] NECESSARY REPAIRING TOOLS

Code No.	Description	Use for
1R003	Retaining ring S pliers ST-2N	Removing Ring springs
1R005	Retaining ring R pliers RT-2N	Removing Retaining ring (INT) round R-42
1R023	Pipe ring ( for Arbor press)	When it is difficult to remove Armature from Crank housing complete.
1R089	Bearing extractor	When it is difficult to remove Ball bearing 6203LLU.
1R132	Nose 15-20	Attachment for 1R089 to remove Ball bearing 6203LLU
1R139	Drill chuck extractor
	M8x40 Hex socket head bolt	Removing Crank shaft
	Flat washer 8
1R212	Tip for Retaining ring pliers	Attachment for 1R003 to remove Ring springs
1R214	Taper sleeve	Fitting Fluoride ring on Impact bolt
1R229	1/4” Hex shank bit for M5	Unscrewing/ screwing M5 size Hex socket head bolt
1R230	1/4” Hex shank bit for M6	Unscrewing/ screwing M6 size Hex socket head bolt
1R239	Round bar for Arbor 10-100	When it is difficult to remove Armature from Crank housing complete.
1R269	Bearing extractor	Removing Ball bearing 608DDW from Armature’s commutator end
1R288	Screwdriver magnetizer	Magnetizing screwdriver when removing Steel balls
1R291	Retaining ring S and R pliers	Removing Ring spring 34 when disassembling Barrel section
1R306	Ring spring removing jig	When it is difficult to remove Armature from Crank housing complete.
1R363	Ring spring removing tool	Removing Ring spring 25

[2] LUBRICATIONS

Apply the following lubricants to the portions to protect the parts and product from unusual abrasion.

Item No.	Description		Portion to lubricate			Lubricant	Amount
1	Tool holder cap		Lip portion			Makita grease	a little
7	Tool retainer		Belly portion where Hammer bit contacts			N.No.2
16	Steel ball 4.8 (4pcs.)		Whole portion
19	Fluoride ring 28		The surface where Tool holder contacts
21	Impact bolt		Cylindrical portion of Striker side
22	Ring 20						a little
23	Rubber ring 20		Whole portion
27	Flat washer 23					Makita grease
31	O ring 24		The surface where 32	Cylinder contacts.		R.No.00
32	Cylinder 32		Inside between Striker and Piston.				7g
38	O ring 46
49	Pin 8		Whole portion				a little
51	O ring 26
53	Connecting rod		The hole in which Crank shaft’s pin is inserted
58	Crank housing complete Crank room						20g
Fig. 1					O ring 23 between Fluoride ring
		Change ring			28 and Impact bolt
					Note: Do not apply any grease
				19
			Tool holder			to O ring 23 attached to
1	Striker		7			Fluoride ring 28.
16	31			21
						Guide ring
	Lock ring	32
			49	22
	Cylinder guide			23	27
			38	Piston
				53
			50			58
			51
			Pin of Crank shaft