Makita GA4030 User Manual

Page of 13
P 4/ 13
R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -1. Armature, Ball bearing 629DDW, Spiral bevel gear 10 (cont.)
DISASSEMBLING
(5) Take out Ball bearing 629DDW as illustrated in Figs. 7 and 8. Remove Ball bearing 607LLB from Armature as 
      illustrated in Fig. 9.
Note: If difficult to remove the Ball bearing 629DDW in the way illustrated in Fig. 8, remove the Ball bearing
          as illustrated in Fig. 10.
Guide plate
After removing Guide plate,
remove Retaining ring R-26.
1R006
Retaining ring R-26
Strike the edge of Gear housing with a plastic hammer, . 
So Ball bearing 629DDW is removed together with 
the Armature.
Strike Gear housing against a worktable. 
Ball bearing 629DDW can be removed from
Gear housing.
Note
Put something soft on a worktable to avoid 
the damage on Gear housing in this step.
Ball bearing 629DDW
Ball bearing
629DDW
Fig. 7
Fig. 8
Spiral bevel gear 10
M6 Hex nut
Armature
1. Insert Armature into Gear housing.
2. Assemble Spiral bevel gear 10 to 
    the Armature in Gear housing.
3. Fasten Spiral bevel gear 10 with 
    M6 Hex nut.
Fig. 10
Fig. 9
1R269
Labyrinth rubber ring 19
Insulation Washer
After removing Labyrinth rubber ring 19, remove
Ball bearing 607LLB with 1R269.
Ball bearing 607LLB