Dell 3115CN - Chapter 3 Removal and Replacement Procedures; Removal and Replacement Procedures (Rrps); Before Starting Service Procedure

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Chapter 3 Removal and Replacement Procedures (RRPs)
Version 2 2007.03.20
1. Removal and Replacement Procedures (RRPs)
1.1 Before starting service procedure
- Start the procedure after turning off the power and removing the power cord from the outlet.
- When performing the service operation around the FUSER ASSY, ensure that FUSER ASSY
and its surrounding area have cooled down sufficiently.
- Pay sufficient attention to the parts during the procedure because they may be broken or may
not perform their functions properly if unreasonable force is applied.
- Since various types of screws are used, ensure that the right screws are used in their right posi-
tions. Use special caution not to confuse the screws for plastic and the ones for sheet metal,
because using the wrong type of screw may result in damage to the screw threads or other trou-
bles.
No. Type Application Shape How to distinguish Points to be noted
Major
application
locations
1
Screw for
plastic
Silver, tap
Plastic
•Silver-colored
•Thread is
coarser than
that of the sheet
metal type.
•Screw tip is
thin.
Oblique screw-
ing damages the
thread because
this screw cuts
female threads in
the base material
as it goes in.
2
Screw for
plastic
Silver, with
flange, tap
Plastic
•Silver-colored
•With flange
•Thread is
coarser than
that of the sheet
metal type.
•Screw tip is
thin.
Oblique screw-
ing damages the
thread because
this screw cuts
female threads in
the base material
as it goes in.
•Chute
assy exit
out
3
Screw for
metal sheet
Silver
Sheet metal
•Silver-colored
•Diameter of the
thread section
is uniform.
4
Screw for
metal sheet
Silver, with
flange
Sheet metal
•Gold-colored
•With flange
•Diameter of the
thread section
is uniform.
•Rear
cover
5
Screw for
metal sheet
Silver, with
an external
tooth washer
Sheet metal
•Silver-colored
•Provided with
an external
tooth washer.
•Diameter of the
thread section
is uniform.
•Mounting
positions
of the
ground
wires.
Parts etc Plastic
Coarse
Parts etc Plastic
Coarse
Parts etc Sheet metal
Parts etc Sheet metal
Parts etc Sheet metal