Makita EM2650UH Technical Information page 5

R
epair
[4] DISASSEMBLY/ASSEMBLY
[4]-4. Gear case assembly
DISASSEMBLING
(1) According to the clause of [4]-3, Remove Gear case assembly.
(2) Remove M8x10 + Hex bolt that is the stopper of Grease inlet on Gear case set. (Fig. 13)
(3) Remove Retaining ring R-24 with 1R006. (Fig. 14)
(4) Remove an assembled part of Spiral bevel gear 14, Ball bearing 609ZZ and Retaining ring S-9 by striking Gear case
assembly against workbench as drawn in Fig. 15.
(5) Remove Retaining ring S-9 with 1R291.
(6) Receive Ball bearing 609ZZ with 1R031, then press down the top of Spiral bevel gear 14 using 1R282 with Arbor press
(Fig. 16) Refer to Fig. 17 for the components.
(7) Remove Retaining ring R-28 with 1R291. (Fig. 18)
(8) Pretighten Receive washer and 1R033 with
the impacts using the plastic hammer. An assembled part of Cutter shaft complete, Ball bearing 6001LLU is removed.
Refer to Fig. 20 for the components.
(9) Remove Ball bearing 6001LLU with 1R045.
Fig. 13
M8x10 + Hex bolt
Fig. 14
Retaining ring R-24
Fig. 17
Spiral bevel gear 14
(The component of Cutter shaft set)
Ball bearing 609ZZ
Retaining ring S-9
Retaining ring R-24
Fig. 19
Receive 1R033
washer
M10-17 Hex. nut
Gear case
ASSEMBLING
Take the disassembling step in reverse.
• Receive Gear case assembly with the U-shape table of Arbor press,
then press down Ball bearing 6001LLU using 1R028 with Arbor
press to insert Cutter shaft set in place.
M10-17 Hex. nut to Cutter shaft as drawn in Fig. 19, and give
Fig. 15
Workbench
M8x10 + Hex bolt
Fig. 20
Cutter shaft set
(Note: Spiral bevel bear 14 shown in Fig. 17 is also
the component.)
Fig. 16
Ball bearing 609ZZ
Fig. 18
Ball bearing 6001LLU
Retaining ring R-28
Fig. 21
Ball bearing 6001LLU
P 5/ 14
1R282
1R031
Retaining ring
S-28
1R028