Makita EM4351UH, EM4350UH, EM4350LH specifications Gear case assembly

Repair

P 7/ 22

[4]DISASSEMBLY/ASSEMBLY

[4]-4. Gear case assembly

DISASSEMBLING

(1)According to the clause of [4]-3, Remove Gear case assembly. (Refer to Figs. 8, 9 and 10)

(2)Remove M8x10 + Hex bolt from the grease inlet of Gear case assembly. (Fig. 19)

(3)Remove Retaining ring R-26 with 1R006. (Fig. 20)

(4)Remove an assembled part of Spiral bevel gear 13*, Ball bearing 6000ZZ, Ball bearing 6000 and Retaining ring S-10 by tapping Gear case assembly with Plastic hammer. (Fig. 21)

Note: If the assembled part cannot be removed, use a heat gun or hair dryer to warm Gear case assembly.

(5)Remove Retaining ring S-10 with 1R291. (Fig. 21)

(6)Receive Ball bearing 6000 with 1R031, then press down the shaft end of Spiral bevel gear 13 using 1R282 with Arbor press. (Fig. 22) Refer to Fig. 23 for the components.

(7)Remove Retaining ring R-32 with 1R291. (Fig. 24)

(8)Preset Receive washer and 1R033 with M10-17 Hex nut to Cutter shaft complete* as drawn in Fig. 25, and give the impacts using the plastic hammer. An assembled part of Cutter shaft complete* and Ball bearing 6201LLU is removed. Refer to Fig. 26 for the components.

(9)Remove Ball bearing 6201LLU with 1R045.

*Neither Spiral bevel gear 13 or Cutter shaft set is supplied individually. It is supplied as a set “Cutter shaft set”.

Fig. 19 Fig. 21 Fig. 22

M8x10

+ Hex bolt

Fig. 20

Retaining ring R-26

Fig. 23

Assembled part

Retaining ring S-10

Arbor press

1R282

Ball bearing

6000ZZ

Ball bearing 6000

1R031

Spiral bevel gear 13*

Fig. 24

Ball bearing 6000

Ball bearing 6000ZZ

Retaining ring S-10

Retaining ring R-26

It was removed by the previous step (3).

M8x10

+ Hex bolt

Spiral bevel gear 13*

Retaining ring R-32

Fig. 25

1R033Receive washer

M10-17

Hex nut

Gear case assembly

Fig. 26

O ring 32

Cutter shaft complete*

Ball bearing 6201LLU Ball bearing 629ZZ Retaining ring R-32

It was removed by the previous step (7).