WinGD RT-flex50DF, Maintenance Manual, Page: 493 / 586

Maintenance
8447 − 1/A1
Winterthur Gas & Diesel Ltd.
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6) Carefully remove the HP servo oil pipe
(3 and 4, Fig. 2 ).
7) Apply protection to the sealing
faces (SF) to prevent damage.
3. Sealing Faces − Grind
To get a smooth finish on the HP servo oil
pipe (1, Fig. 3 ), do step 1 ) to step 25 ).
1) Loosen the claw (3).
2) Apply protection to the opening of the
HP servo oil pipe (1).
3) Use the applicable grade of emery
cloth related to the quantity of metal
you want to remove.
4) Use a pencil or a ball pen to make the
inner shape.
5) Cut out accurately the shape.
6) Remove the four screws (T2) and the
grinding tool (94841).
7) Apply Molyslip Copaslip paste to the
threads and faces of the four
screws (T2).
8) Remove the cover (T1).
9) Put the emery cloth you cut out into the
grinding tool (94841).
10) Put the grinding tool (94841), emery
cloth and the cover (T1) in position on
the hydraulic pipe (1).
11) Torque symmetrically the the four
screws (T2) to 2.0 Nm.
12) Put the hydraulic pipe (1) in a vice, as
vertically as possible.
13) Adjust the speed of the hand drill to
between 200 rpm and 500 rpm.
14) Align the hand drill and the grinding
tool (94841) accurately with the
hydraulic pipe (1) as shown.
15) Torque symmetrically the the four
screws (T2) to 2Nm.
16) Put the hydraulic pipe (1) in a vice, as
horizontally as possible.
17) Adjust the speed of the hand drill to
between 200 rpm and 500 rpm.
2016
HP Servo Oil Pipe: Removal, Grind, Installation
3
2
1
WCH02974
WCH02974
Emery
Cloth
Template
SF
T2
94841
T1
1
1
94841
Hand Drill
Emery
Cloth
Fig. 3