WinGD RT-flex50DF, Maintenance Manual, Page: 181 / 586

Maintenance
2708 − 5/A1
Winterthur Gas & Diesel Ltd.
1/ 1
Sealing Face for Fuel Injection Valve Position − Grind
Tools:
1 Grinding device 94270 − 01
1 Stencil 94270 − 1D
1. Procedure
1) Make sure that the stop sleeve (3) is
attached to the spindle (2) of the device
(94270 − 01).
2) Make sure that the O − rings (4) are
serviceable.
3) Use the applicable grade of emery
cloth related to the quantity of metal
you want to remove.
4) Put the stencil (94270 − 1D) on the
emery cloth.
5) Use a pencil or a ball pen to make the
inner shape.
6) Cut out accurately the shape.
7) Attach the shape (5) to the device
(94270 − 01) with the clamp (6) and the
the Allen screw (7).
8) Torque the Allen screw (7) to 4.0 Nm.
9) Apply a thin layer of oil to the
O − rings (4).
10) Attach the device (94270 − 01) to the
cylinder cover as shown.
11) Attach an electric drill to the spindle (2).
12) Operate the electric drill at a maximum
of 500 rpm.
13) Apply a light pressure and start
grinding.
14) Regularly remove the unwanted
material from the device (94270 − 01)
and the bore (8).
15) Make sure that the circular marks
around the sealing face are concentric.
16) Change the emery cloth for a smoother
grade, then do step 3 ) to step 15 ) again
until you get a smooth finish.
17) Clean the bore (8).
Pilot Injection Valve
2018
Fig. 1
x
1
I
I
WCH00865
94270 − 1
94270 − 1
94270 − 1D
7
6
5
2
3
I - I
8
4