Twin Disc MG-5170DC, Service Manual

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157
Twin Disc, Incorporated
Assembly
Marine Transmission Service Manual #1020667
10. Install the thrust bearing and races (thrust washer on earlier units) over
the end of the stem.
11. Press the oil seal into the cover assembly until flush with the adjacent
cover surface.
12. Install the O-ring into the counterbore in the cover assembly.
13. Apply grease to the stem, O-ring, and oil seal lip.
14. Install cover assembly and gasket onto valve body. Be sure to align the
oil drain hole in the gasket with the hole in the valve body.
Figure 126. Holes in Gasket and Cover Must be Aligned
15. Install cover capscrews and torque to 23 Nm (17 lb-ft).
16. Install washer over stem and against oil seal.
17. Install spring over stem against washer.
18. Install lever onto the stem. It may be necessary to splay the lever to be
able to install it. DO NOT apply any impact force to the lever, as the
stem or dog-point setscrew may be damaged. Torque the lever’s
attaching screw to 9.5 Nm (7 lb-ft).
19. Install external retaining ring onto stem .
20. Install the steel balls and electrical switches into the bores in the sides
of the valve body (if equipped). Note that the small diameter ball is
inboard of the large diameter ball at each switch location.
21. Install the pressure regulating piston into valve body with spring pocket
out.