3-1 Disassembly of impact bolt and idler
As shown in the sketch, insert (-) driver (tip width 5mm
approx.)through the hole of tool holder and hook ring spring
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.
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.)
4-1 Disassembly of crank
Remove three screws from crank housing.
Applying driver on pin 8, tap it lightly by hammer since pin 8
in the bearing of bell crank is pressed in lightly.
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.
4-2 Assembly of crank
hole
Impact bolt
Idler
Ring spring
Flat washer 13.5
Ring spring
Bell crank
Pin 8
Gear housing cover
Pan-head screw(3)
Crank shaft
Crank joint
Crank housing
Washer
Needle cage 808
Washer
Shape
Pin 8
Bell crank
Piston cylinder
Window
Pin7
Crank joint
Bit side
Iimpact bolt
Idler
Face-R
Flat washer 13.5
Face-C
Motor side
grease
grease
