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P 2/ 20
Repair
CAUTION: Remove the hammer bit from the machine and disconnect the Machine from
power source for safety before repair/ maintenance in accordance with the
instruction manual!
[1] NECESSARY REPAIRING TOOLS
[2] LUBRICATIONS
[2] - 1 Tool holder section
Fig. 1A
Code No. Description Use for
1R003 Retaining ring S pliers ST-2N Removing Ring spring 26
Pressing down Slide sleeve for easy removing of Ring spring 43
1R023
1R024
Pipe Ring (for Arbor press)
Press Tool (for Arbor press)
Assembling Helical gear 521R031
Bearing setting pipe 28-20.2
Removing Counter shaft1R045
Gear extractor (large)
Attaching to 1R045, when removing Counter shaft1R346
Center Attachment
Supporting Crank shaft for assembling Helical gear 521R165
Gear extractor (large)
Fitting Fluoride ring 28 on Impact bolt1R214
Taper sleeve
Removing / Assembling Crank shaft1R217
Ring 22
Removing M4 Hex socket head bolts1R228
1/4” Hex Shank bit for M4
Removing M6 Hex socket head bolts1R230
1/4” Hex Shank bit for M6
Removing M8 Hex socket head bolts1R231
1/4” Hex Shank bit for M8
Removing M8 Hex socket head bolts1R246
Round Bar for Arbor 18-100
Removing Retaining ring S-8 from Counter shaft1R291 Retaining ring S & R pliers
Disassembling AVT mechanism1R306
Ring spring removing Jig
Pressing down Flat washer 30 for easy removing Ring spring 261R363 Ring spring removing tool
Removing Ball bearing 6203LLB1R247
Round Bar for Arbor 20-100
Separating Cylinder 40 and Motor housing from Crank housing1R263
Bearing Extractor
Removing Ball bearing 6000DDW from Commutator end of Armature1R269
Bearing Extractor (small)
Removing Ball bearing
1R212 Tip for Retaining Ring Pliers Attaching to 1R003, when removing Ring spring 26
Item No.
Apply Makita grease N.No.2 to the following portions designated with the gray triangle to protect parts
and product from unusual abrasion.
Description Portion to lubricate
Chuck cover
Tool holder section
1
13
14
5
6
8
Release cover
Change ring cover
Tool holder
1 Tool holder cap
Rubber ring 30
Chuck ring
Change ring
Rock ring
Tool retainer
Rip portion
Inside where Tool holder contacts
Inside where 8 Tool retainers contact
Inside which 14 Lock ring accepts
Its inside where Tool holder contacts
The belly portion where Hammer bit contacts
5
6
8
13
14