Makita HR4013C Technical Information page 12

R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-3. Crank housing, Cylinder, Counter weight (cont.)
(7) When Seal ring 8 is removed from Crank housing, be sure to fit Seal ring 8 into the groove of Crank housing before
setting Link plate in place.
Fit Seal ling 8 into the groove of Crank housing especially around Link plate, and pass Link plate through the slot in
Seal ring 8 from the opposite in advance to make space for the smooth installation of Link plate. Their ways will make
it easy to set Link plate in place later. (Fig. 26)
(8) Spiral bevel gear 26 must be installed straight. (Fig. 27) Do not fail to apply Makita grease No. R 00 to the gear teeth.
(9) Three pieces of O ring 30 on Cylinder must be lubricated with Makita grease No. R 00. (Fig. 2 of [2] LUBRICATION)
When Cylinder is pressfit into Crank housing, Put 1R032 under the four pins on handle side of Crank housing as drawn
in Fig. 28. Place Guide ring in Crank housing as drawn in Fig. 29. Be careful about the direction of Guide ring.
Insert the hooks of Link plate into the center groove of Driving sleeve, and install them into Crank housing. (Fig. 30)
At this time;
• engage the gear teeth of Spiral bevel gear 26 and the cam groove of Driving sleeve.
• pass Link plate through the slot of Seal ring 8.
Fig. 26
Slot of Seal ring 8
Link plate
Fig. 28
Two pins
Fig. 30
Arbor press
Cylinder section
Crank housing
Four pins
1R032
Center groove of
Driving sleeve
Hooks of Link plate
Fig. 27
Apply Makita grease No. R 00 to
the gear teeth of Spiral bevel gear 26.
Two pins
Four pins
Fig. 29
P 12/ 19
Wide notch of
Guide ring