Makita GN900SE Technical Information page 4

Cordless clipped head framing nailer
Hide thumbs Also See for GN900SE:
R
epair
[3] DISASSEMBLY/ASSEMBLY
[3]-1. Driver, Front cushion (cont.)
DISASSEMBLING
(2) Separate Cylinder section from Housing. And then disassemble Front cushion. (Fig. 4)
Fig. 4
Separate Cylinder section from Housing after removing
M5x10 Hex socket
Arm plate, Contact top and Front plate.
head bolt (2pcs.)
Arm plate
Contact top
ASSEMBLING
(1) Assemble Front cushion to Cylinder as illustrated in Fig. 5.
(2) Mount two Piston rings to Driver complete. (Fig. 6)
Fig. 5
hammer
Front cushion
Cylinder
Push Front cushion into Cylinder
with hammer until it stops.
(3) Insert Driver complete into Cylinder as illustrated in Fig. 7.
Fig. 7
Set Driver complete in place
so that the flat tip faces
Contact top installation side.
Contact top
(4) Inserting Cylinder section into Housing, tighten Front plate with M5x16 Hex socket head bolt (3pcs.).
Assemble Contact top and Arm plate. (Fig. 4)
(5) Assemble Retaining ring (INT) R-58 to the groove in Cylinder. (Fig. 3)
(6) Assemble Handle set to Housing. (Fig. 2)
Front plate
M5x16 Hex socket
head bolt (3pcs.)
Use slotted screwdriver to prevent
Piston rings from being caught in
the groove of Cylinder for
Retaining ring (INT) R-58.
(Refer to Fig. 3.)
Cylinder
section
Housing
Fig. 6
Assemble Piston ring (2pcs.) to Driver complete
so that the angle of their slits is more than 90 degrees.
slit
slit
Driver complete
Note: Do not face the chamfered tip
of Driver complete to Contact top
installation side
Contact top
P 4/ 16
Insert slotted screwdriver
from the nail exit side,
and push Front cushion
out of Cylinder section.
Front cushion
slit
slit
more than
90 degrees
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Gn900sGn900zk