Makita BTW074, BTW104 dimensions Hammer section

Page 9

P 9/ 15

Repair

[3]DISASSEMBLY/ASSEMBLY

[3]-5. Hammer section

DISASSEMBLING

(1)Loosen four M4x22 Pan head screws and separate Hammer case complete from Housing set. See the drawing on the upper left in Fig. 3.

(2)Remove Hammer section from Housing set. See Fig. 15.

Fig. 15

Hammer section

(3)Take out Steel ball 5.6 with 1R045 as drawn in Fig. 16.

Fig. 16

1.Pull Hammer downwards using 1R045 to align the opening for Steel ball insertion with the top of the cam grooving on Spindle, and then remove Steel balls 5.6 from Spindle.

2.Hold Hammer section as shown below in Fig. 16R, and then release it from 1R045.

Caution: Do not hold Hammer section as shown below in Fig. 16F when releasing Hammer section from 1R045. Failure to follow this instruction could cause Steel balls 3.5 to fall out from it.

Steel Ball 5.6

Fig. 16R

Fig. 16F

(2pcs.)

 

 

Top of

Spindle

 

Cam groove

 

 

on Spindle

 

 

Hammer

Opening for Steel ball

insertion

1R045

Handle

Image 9
Contents Specification Standard equipment Optional accessoriesBTW074, BTW104 Repair Necessary Repairing ToolsDISASSEMBLY/ASSEMBLY Disassembling ArmatureAssembling Assemble F/R change lever as drawn in Fig Ball bearing 6801LLB in Internal gear case Bit holder section, Anvil Hammer section DISASSEMBLY/ASSEMBLY Wiring diagram Circuit diagramFig. D-3 Fig. D-4 Equipped with Automatic Impact Stop System Rib a Boss