DeWalt D518005 Manual De Instrucciones

D518005 - O-Ring Replacement
Instructions
FOR USE WITH D WALT FRAMING NAILERS MODELS
E
D51823 TYPE 2, D51845 TYPE 2, D51822 AND D51844
NOTE: The model number and type number of your nailer is
stamped into the tool housing near the air fitting.
If you should have difficulty understanding the following
instructions, contact a D
E
D WALT service person, or call 1-800-4-D
E
Important Safety Instructions
• Read and understand tool instruction manual before attempting
repairs.
• Use only genuine D WALT Replacement Parts.
E
• Always wear ANSI compliant eye protection.
• Disconnect air from tool and remove all nails before servicing.
• Always point tool in safe direction when reconnecting air supply.
CAUTIONS:
• Do not allow dirt, dust or other foreign materials to enter the tool.
• Be careful not to scratch or damage the O-rings or any internal
surfaces.
O-ring desc. # in kit
Outer Exhaust 1
Inner Cylinder 1
Inner Exhaust 1
Outer Cylinder 1
Outer Bulkhead 2
Lower Cylinder 1
Other Included Parts
Cylinder Seal 1
Check Seal 1
Frame Seal 1
Grease Tube 2
Piston O-ring 1
Retainer band 1
1. Disconnect air from tool before servicing or repairing.
2. Remove all nails from the magazine and nosepiece before
servicing or repairing.
3. Remove the 4 top cap screws using a 5mm Allen wrench.
Remove the top cap.
4. Pull out the engine assembly and piston/driver blade assembly.
If necessary, pry the cylinder out of housing using the handle of
a hammer or other tool.
5. Place the engine assembly upside down on work surface so
that the spring is toward the top. Use one hand to compress the
collar (#395203) and spring (#603413) so that the lower cylin-
der O-ring (#390146 with 1 Blue Dot) is exposed.
WALT service center or an authorized
WALT.
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TABLE 1
part # Identifier
608615 White Dot
606640 Small White O-ring
608617 Orange Dot
612096 White Ring
390156 Green Dot
390146 Blue Dot
390140
390159
608610
606112
608611
603561
COLLAR
SPRING
6. With the free hand, remove the lower cylinder O-ring and gen-
tly release the collar and spring.
• Remove the spring by turning it slightly as it is pulled off.
• Remove the retainer band (#603561) from the spring retainer
(#395204).
603413
395204
390146
7. Remove the spring retainer (white plastic ring, #395204) by
spreading it enough to clear the body of the engine and pulling
it off.
8. Remove the bulkhead (#395215)
9. At this point, all the O-rings identified in the exploded view are
exposed on the tool.
10. Remove all O-rings and the cylinder seal (#390140) as identi-
fied in the parts drawing and in the O-ring identifier Table 1.
Replace all O-rings, coating each one with a layer of supplied
grease to insure proper seating when reinstalled. No grease is
needed on the check seal.
11. Reassemble the engine in reverse order.
CAUTION: The smaller white O-ring (#606640) must only be
used in the location indicated on the parts drawing. The use of any
other O-ring in this position could result in excessive wear over the
life of the tool and potential inadvertent firing.
12. Before installing engine into the housing, make sure that the
bumper is properly seated in the bottom of the frame.
13. Insert the engine assembly into frame and push it down as far
as possible.
14. Replace the piston O-ring (#608611) on the driver blade/piston
assembly. Insert the driver blade/piston assembly into cylinder.
15. Liberally apply supplied grease to the inner and outer exhaust
O-rings before assembling the top cap and gasket (#608610) to
the engine frame.
16. With a gentle turning motion, assemble the top cap onto the
engine and frame. The cap should slide easily. If not, remove
the cap and reassemble.
17. Push downward to fully seat cap of frame.
1
LOWER
CYLINDER
O-RING
603561