Makita HR4002 Technical Information

Also see for HR4002: Instruction manual Specifications Parts Breakdown Instruction manual Instruction manual

Contents

Tool holder

Makita HR4002 Technical Information Manual pdf 4 page image

P 4 / 20[3] DISASSEMBLY/ASSEMBLY[3] -1. Chuck SectionRepairDISASSEMBLEASSEMBLEDo the reverse step of disassembling. Refer to the illustrations from Fig. 2 to Fig. 9.[3] -2. Tool Holder Section and Barrel CompletePull off Barrel complete, while pushing Impact boltwith Screwdriver toward Piston in Slide sleeveso that the Impact bolt remains in the Slide sleeve.1) In case of HR4002, it is not necessary to disassemble Chuck section, when repairing inside of Tool holder section.Remove Barrel complete together with Chuck section. (Fig. 10) Now Impact bolt comes into your sight.2) Check whether Fluoride ring 25 is worn out.When O ring 20 (orange color) under Fluoro carbon resin ring 25 can be seen, Fluoride ring 25 is worn out. (Fig. 11)Be sure to replace not only Fluoride ring 25 but also O ring 20 and X ring 18.3) Check whether there has been dust in the Tool holder. If yes, be sure to clean up Tool holder.4) For removing Flat washer 45 and Urethane ring 45 from Tool holder, chuck section has to be disassembled asillustrated in page 3.5) Disassemble Tool holder from Barrel complete, by striking it with plastic hammer. (Fig. 12)6) Remove Urethane ring 45 and Flat washer 45 by pushing them toward the Bit installing side of Tool holder. (Fig. 13)ScrewdriverHex socket headbolt M6x30: 4 pcs.Urethane ring 45Flat washer 45Tool holderBarrelImpact boltImpact boltSlide sleeveFig. 10 Fig. 11O ring 20(orange color) X ring 18Worn Fluoride ring 25Flat washer 45Flat washer 45Urethane ring 45Urethane ring 45 Tool holderTool holder Barrel completeFig. 12Fig. 13