Panasonic EY6812 Service Manual page 4

Model EY6812
ASSEMBLY INSTRUCTIONS
B HOW TO ASSEMBLE THE INTERNAL MECHANISM BLOCK.
(Assembly should be done block by block, in order of intermediate shaft block, output shaft block
and hammer w/piston block.
(g) Use specific grease (SHELL ASG-7) supplied by the part number (EY6811X5517) for mechanism part.
Ref. No. lA Procedure lA
Ref. No. 2A Procedure lA -► 2A
Universal coupling
Piston and hammer block
Assembly of the output shaft block.
1. Check the direction of the chuck spring with
setting (B) part upward.
Press and screw the spring into the chuck
ring.
2. Insert the chuck ring block into the output
shaft block with adjusting (A) part of spring
to (A') part of the output shaft block.
3. Put the transmission keys into the right and
left side of the output shaft block.
4. Assemble the chuck cam with setting (B') part
downward to the output shaft block.
NOTE: After inserting the chuck cam into the
output shaft block, slightly turn the
chuck cam clockwise direction; and turn
the chuck ring counterclockwise direction
to adjust the (B) part of spring to (S')
part of chuck cam.
5. Insert the chuck key (C) into the output
shaft block (C) part.
6. Set the snap ring.
7. Assemble the chuck cover with fitting the (D)
part of chuck cover and (O') part of chuck
cam.
Assembly of the piston and hammer block.
1. When inserting the hammer into piston,
clean around the exhaust holes.
2. When inserting the hammer into the piston,
make sure that its orientation is correct.
NOTE : In particular, hammer 0-ring, inside of
the piston and cylinder of output shaft
block require adequate greasing as they
are subject to heating from compressed
air.
i
1