P 1
5
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3
[3] -7. Switches, Controller, Power Supply Cord
R
epair
DISASSEMBLY
5x25 Tapping
screw (6 pcs.)
4X18 Tapping screw
slotted screwdriver
Handle section
Handle cover
Handle
Main
switch
1) Main switch and Slide switch (for HR4501C and HR4510C only) can be disassembled as illustrated in Figs. 46 and 47.
4X14 Tapping
Screw (2 pcs.)
Handle
Connector
Disconnect Connector from Controller.
Unscrew 4x14 Tapping screw to remove Controller
in the next step.
Disassemble Handle section by
unscrewing 5x25 Tapping screws.
Main switch can be
replaced.
Disassemble Handle
cover by unscrewing
4x18 Tapping screw.
Controller
Fig. 46
Fig. 47 (HR4510C and HR4511C only)
Handle
Unscrew 4x14 Tapping screw and
separate Switch box from Handle.
Now Slide switch can be replaced.
Leaf spring
4x14 Tapping
screw
Slide switch
Switch box
Slide lever complete
Slide lever
complete
ASSEMBLY
1) Passing Connecting rod through Ring 38, connect Connecting rod to Crank shaft. Refer to Fig. 43.
2) Mount Ring spring 37 and O ring 35 (2 pcs.) on Cylinder 34 before assembling Cylinder 34 to Crank housing complete.
(Fig. 44)
3) Mount Ring 38 and Ring spring 36 to the Cylinder end which protrudes into Crank room.
Refer to Fig. 39 (right).
4) Regarding HR4510C and HR4511C, Seal plates have to be assembled to the position illustrated in Fig. 45.
5) Do the reverse step of disassembling.
O ring 35
Ring spring 37
Ring spring 37 functions
as a stopper to stop the
assembled Cylinder 34 at
the position as it was.
Fig. 44
Fig. 45 (HR4510C and HR4511C only)
Seal plate
[3] DISASSEMBLY/ASSEMBLY
[3] -6. Crank section, Cylinder, Piston
