WinGD X92 - HP Injection Pipe: Removal, Grinding and Installation

Maintenance8733−1/A1
Winterthur Gas & Diesel Ltd.
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3. Sealing Faces − Grind
To get a clean and smooth finish on the HP
injection pipe do the procedure that follows:
1) Put the template (94871A, Fig. 2) on
the back of emery cloth.
2) Use the applicable grade of the emery
cloth related to the quantity of metal
you want to remove.
3) Use a pencil or a ball pen to make the
the inner shape.
4) Cut out accurately the shape.
5) Remove the four screws (T2) and the
grinding tool (94871).
6) Apply Molyslip Copaslip paste to the
threads and faces of the four
screws (T2).
7) Remove the cover (T1).
8) Put the emery cloth you cut out into the
grinding tool (94841).
9) Put the grinding tool (94841), emery
cloth and the cover (T1) in position on
the HP injection pipe (1).
10) Torque symmetrically the four screws
(T2) to 2 Nm.
11) Put the HP injection pipe (1) in a vice,
as vertically as possible.
12) Adjust the speed of the hand drill
between 200 and 500 rpm.
13) Align the hand drill and the grinding
tool (94841) accurately with the HP
injection pipe (1) as shown.
14) Use light pressure and start grinding.
15) Regularly remove unwanted material
from the grinding tool (94871).
16) Make sure that the circular marks around the sealing face of the pipe are concentric.
17) Change the emery cloth for a smoother grade, then do step 1) to step 16) again until
you get a smooth finish.
18) Replace the emery cloth with a polishing cloth as a last step to polish the HP injection
pipe.
19) Clean the HP injection pipe (1).
20) If necessary, do step 1) to 19) for the other HP injection pipes.
HP injection Pipe: Removal, Grinding and Installation
2015
WCH02726
94871A
SF
T2
94871
T1
1
1
94871
Fig. 2
Emery Cloth
Emery Cloth
Hand Drill