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3-1 Disassembly of impact bolt and idler
Impact bolt
Idler
Flat washer 13.5
Ring spring
3-2. Assembly of impact bolt and idler
Make sure of the direction of impact bolt, idler and flat washer 13.5 for assembly.
Assemble idler and flat washer facing R
and C to the unit inside.
Make sure of applying grease on O-ring of impact bolt.
Insert ring spring with finger to the depth and fit it in the groove using (-)driver as shown in the sketch.
(pipe or bar<Ø27-27.5> is recommended for pushing. It will make fitting to the groove easier.)
Ring spring
4-1 Disassembly of crank
Crank shaft
Crank joint
Pan-head screw(3)
Crank housing
4-2 Assembly of crank
Piston cylinder
As shown in the sketch, insert (-) driver (tip width 5mm
approx.)through the hole of tool holder and hook ring spring
hole
by driver tip . Then, push it up to remove from the groove.
Also follow the same procedure in the other hole as there are
two hole.
After taking off ring springs, push impact bolt by the driver
tip. Then, it will come out with idler and flat washer 13.5.
Bit side
Remove three screws from crank housing.
Applying driver on pin 8, tap it lightly by hammer since pin 8
Bell crank
in the bearing of bell crank is pressed in lightly.
Pin 8
Be cautious not to lose washers used on both sides of bell crank
at disassembly working.
As shown in the sketch, washer has a special shape.
Gear housing cover
Pin7
grease
Window
Crank joint
grease
Iimpact bolt
Idler
Needle cage 808
Washer
Washer
Pin 8
Bell crank
Face-R
Face-C
Flat washer 13.5
Motor side
Shape
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