![background image](http://html1.mh-extra.com/html/makita/hr4013c/hr4013c_technical-information_3993674009.webp)
(6) Put 1R400 on Flat washer 33 located on Chuck side of Cylinder. Assemble two pieces of 1R022 to 1R306.
Set 1R306 to Arbor press.
Then compress Compression spring 34 by pressing down 1R400 using Arbor press with 1R022 and 1R306 until
Retaining ring (EXT) WR-32.5 is revealed, and remove it with 1R003 with 1R212. (
Fig. 15
)
(7) Return Compression spring 34 back to the original shape gradually by reducing the pressure.
Cylinder section is disassembled as drawn in
Fig. 16
.
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Crank housing, Cylinder, Counter weight (cont.)
R
epair
P
9
/
19
Fig. 15
Fig. 16
Flat washer 33
Compression spring 34
Retaining ring (EXT)
WR-32.5
Flat washer 33
Retaining ring EXT WR-32.5
Cylinder 28.5
1R400
1R022
1R306
Arbor press
Retaining ring (EXT)
WR-32.5
Ring 33
O ring 30 (3 pcs.)
Chuck side
Crank housing
side
Retaining ring (EXT)
WR-32.5
1R003 with 1R212
Note
: Set two 1R022 to 1R306 while keeping the same
spaces between two 1R022 and Cylinder.
Otherwise, it will be extremely difficult to expand
Retaining ring (EXT) WR-32.5 due to the tight space.