Makita HM1317C Technical Information page 9

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. AVT Mechanism of HM1317C, HM1317CB (cont.)
DISASSEMBLING
(3) Disassemble Ring spring 55 which secures the component parts for AVT mechanism as illustrated in Fig. 15.
Fig. 15
Set 1R306 to Arbor press.
Attach two pcs. of 1R024 or 1R356
to 1R306 keeping 67mm distance.
Arbor Press
1R024
or
1R356
Fig. 16
Remove the component parts for AVT as follows.
Weight guide (2pcs.) can be removed from
Counter weight in this step.
Counter weight
Shoulder
sleeve
Compression
spring 66
Weight guide
ASSEMBLING
(1) Assemble ring spring 15 and 2 pcs. of O ring 45 to Cylinder 52. And then, assemble the component parts for AVT
mechanism. Refer to Figs. 16 and 15.
(2) Insert Pin 6 into the position illustrated in Fig. 17.
Fig.17
Pin 6
Crank housing
Stand the Cylinder on the
O ring 45 assembled side.
1R306
1R024
or
1R356
Compression spring 66
Drive sleeve
Cylinder 52
Ring spring 55
Rear cover
(with AVT mark)
Pressing down Shoulder sleeve,
remove Ring spring 55.
O ring 45
(2pcs.)
Ring
spring 55
Shoulder
sleeve
Remove 2pcs. of O ring 45
from Cylinder 52.
Cylinder 52
1R003 with
1R212
And remove another
Ring spring 55
from Cylinder 52.
Ring spring 55
O ring 45
(2pcs.)
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