Twin Disc MG-5170DC, Service Manual

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Twin Disc, Incorporated
Disassembly
Marine Transmission Service Manual #1020667
6. Wrap the threads of T-18614-5 with teflon tape and install the tool into
one of the threaded output gear holes.
7. Wrap the threads of a 7/16-14 x 2.00 inch screw with teflon tape and
install into the other output gear hole.
8. Fill tool with oil, wrap screw with teflon tape, and tighten screw into T-
18614-5.
Note: If the gear does not come loose, rewrap the threads on
the screw with teflon tape, refill the cavity with oil and try
again.
Figure 49. Removing Output Gear from Output Shaft
9. When the output gear comes loose, remove T-18614-5 from the output
gear. Remove the output seal carrier.
10. Install two eyebolts into the output shaft and hoist out the shaft. Press
the rear bearing cone off of the output shaft.
11. Slide the output gear out of the housing on wood boards far enough to
install lifting eyebolts. Using a hoist, remove the output gear.
12. Remove the front output bearing cone.