P 2 / 8
R
epair
[2] LUBRICATION
Put approx. 9g of Makita grease N No.1 in the gear room of Gear housing to protect parts and product from
unusual abrasion.
[3] DISASSEMBLY/ASSEMBLY
[1] NECESSARY REPAIRING TOOLS
CAUTION: Remove the drill bit from the machine for safety before repair/ maintenance !
Code No.
Description
Use for
[3] -1. Drill Chuck
Fig. 2
DISASSEMBLING
Fig. 1
Fig. 3
1R139
Drill Chuck Extractor
Removing Drill chuck
1R269
Bearing Extractor
Removing Ball bearing
1R291
Retaining Ring S and R Pliers
Removing Ball bearing
1R298
Hex Bar 10 with Square Socket
Modular use with No.1R223
1R316
Adjustable Bearing Retainer Wrench
Removing Bearing retainer
718024-2
Wrench 43
Removing broken Drill chuck
1R223
Torque Wrench Shaft 20-90 N.m
Removing Drill chuck
1R224
Ratchet Head 12.7
Modular use with No.1R223
Note: When removing broken Drill chuck; for instance,
the jaws do not function to tighten the bit, use Wrench 43
(No.781024-2) instead of No.1R223 and 1R224. (Fig. 3)
1) Fix Drill chuck extractor (No.1R139) in vise, and fix Hex bar with 12.7mm square shaft (No.1R298) securely in
Drill chuck. Then fix the machine in No.1R139 with the flat sides of Spindle fit in the notch of No.1R139. (Fig. 1)
2) Attach Ratchet head 12.7 (No.1R224) to Torque wrench shaft 20-90N.m (No.1R223), then fit the ratchet head in
No.1R298. Drill chuck can now be removed from Spindle by turning No.1R223 counterclockwise. (Fig. 2)
No.1R139
17mm
1) Fix the machine in No.1R139. (See Fig. 1.)
2) Preset the fastening torque of No.1R223 to 64 - 74 N.m
(650 - 750kgf.cm).
3) Tighten Drill chuck by turning clockwise with No.1R223
and 1R224. (Refer to Fig. 2.)
No.1R298
No.1R223
No.1R224
ASSEMBLING
No.781024-2
No.1R139
[large view of the circled portion A]
Fit the pin in the key hole.
