Maintenance8733−1/A1
Winterthur Gas & Diesel Ltd.
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3. Sealing Faces − Grind
Use a medium to coarse grade emery cloth
(30 CAMI to 80 CAMI) to remove deep
notches of more than 0.1 mm.
Use a fine or ultra-fine grade emery cloth
(100 CAMI to 600 CAMI) to get a smooth
finish.
Do the procedure that follows:
1) Use the applicable grade of the emery
cloth related to the quantity of metal
you want to remove.
2) Put the template (94870D, Fig. 2) on
the back of the emery cloth.
3) Use a pencil or a ball pen to make the
the inner shape.
4) Cut out accurately the shape.
5) Make the shape into a cone. Make sure
that the graded surface is the inner
side.
6) Attach the emery cloth to the cone of
the grinding tool (94870B) with the
countersunk screw.
7) Put the HP injection pipe (1) in a vice.
8) Remove the claw (2) from the HP
injection pipe (1).
9) Attach the locknut (94870C) to the
threads on the end of the HP injection
pipe (1). Turn the locknut until it is fully
attached to the HP injection pipe.
10) Attach the screw-on sleeve (94870A) to
the locknut (94870C).
11) Lock the screw-on sleeve in position
with the locknut (94870C).
12) Attach the grinding tool (94870B) to the
hand drill.
13) Put the grinding tool (94870B) into the
screw-on sleeve (94870A). Make sure
that emery cloth touches the HP
injection pipe (1).
14) Adjust the speed of the hand drill to a
maximum of 1500 rpm.
15) Operate the hand drill for 3 seconds to 5 seconds.
16) Remove the grinding tool (94870B) from the screw-on sleeve (94870A).
17) Use a low-pressure air supply to remove unwanted material from the HP injection
pipe.
18) Do a quality check of the sealing surface (SF). If necessary, do step 1) to
step 17) again.
19) Replace the emery cloth with a smoother grade, then do step 1) to step 17)
again.
20) Replace the emery cloth with a polishing cloth as a last step to polish the HP
injection pipe.
2016
HP Injection Pipe: Removal, Grind, Install
Emery Cloth
94870B
016.739/08
2 94870C 94870A
1
016.739/08
94870B
Hand Drill
1
Graded Face
016.738/08
94871D
1
SF
94870B
Fig. 2
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