Wartsila RT-flex50-D - Page 435

Maintenance
8752−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
5/ 5
G
H
I
016.739/08
016.739/08
016.739/08
1
x
DF
94870g 94870e
1. 2.
HD
94870f
⇒ Remove claw 15 (Fig. ’D’).
⇒ Fix fuel pressure piping 1, e.g. in a vice.
⇒ Screw on counter nut 94870g until it reaches th
e
thread end of the fuel pressure piping.
⇒ Turn screw-on sleeve 94870e up to the counter nu
t.
⇒ Lock the screw-on sleeve with the counter nut.
⇒ Clamp grinding tool 94870f in hand drill ’HD
’.
⇒ Slide grinding tool into the screw-on sleev
e
until it slightly touches the fuel pressu
re
piping.
⇒ Let the grinding tool rotate with a max. spee
d
of 1500 rpm and grind for 3 to 5 seconds.
⇒ Withdraw the grinding tool from the screw-on sleev
e
and blow out both parts with pressurized air.
⇒ Verify the surface quality of sealing face ’DF’ and
if
necessary repeat the regrinding process using
a
fresh emery cloth ’EC’.
Remark: In case of big notches the tube has to be shor
t-
ened in order to restitute a clearance of ’x’ = min. 0.5 m
m
between the countersunk screw and the end face.
⇒ Remove counter nut and screw-on sleeve.
⇒ After grinding thoroughly clean the fuel pressu
re
piping.
F
uel Pressure Piping: Removing, Fitting and Regrinding 5 and 6 Cylinder Engine
s
2010