Makita HR4501C Technical Information page 7

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Tool Holder Section (cont.)
DISASSEMBLY
3) Parts assembled to Cylinder 34 are removed. (Fig. 18)
Fig. 18
Lock sleeve
O ring 53
Ring 38
Compression
spring 39
Driving sleeve section
ASSEMBLY
1) Pay attention to the descriptions in Figs. 19 and 20.
2) Insert Striker into Cylinder 34. And to Crank housing, assemble Straight bevel gear 35, the Driving sleeve section
with Link arm, Compression spring 39 and Ring 38. Refer to Fig. 18.
Fig. 19
Facing O ring 27 installation side of Striker to Crank housing, insert Striker into Cylinder 34.
Impact bolt side
Fig. 20
Mount Lock sleeve
on Driving sleeve.
Driving sleeve
Lock sleeve
Driving sleeve
O ring 53 and Lock sleeve are
Driving sleeve
removed from Driving sleeve.
Link arm
Replace the old O ring 27
in this step.
O ring 27
Bulge portion
Fit O ring 53 into the
grooves on Driving
sleeve.
Grooves for O ring 53
O ring 53
Fix Driving sleeve to Crank housing
while engaging with Straight bevel gear 35.
Straight bevel gear 35
Striker
O ring 27
Crank housing side
Fit the rib of Link arm into the groove
on Driving sleeve.
Rib on Link arm
Groove on Driving sleeve
P 7/ 23
Cylinder 34
Straight bevel gear 35
(assembled in Crank
housing complete)