Service Manual

2-9

WPM Drive Systems Manual

WORMDRIVETRANSMISSION

9. Fill the transmission with gear oil AFTER it is

installed in the mower. The top of this transmission is

not sealed. It will leak if tipped on its side (Fig. 020).

6. Install worm shaft in bearing.

7. Use a new gasket. Install the cover on the bottom

case and start the 4 self-tapping screws. Do not fully

tighten them.

8. Install the front and rear roll pins to align the cover

and case. Then secure the 4 self-tapping screws.

5. If the bearing in the cover is being replaced, use tool

P/N 27-0490 to press it in place. This bearing only

has one seal. Install the bearing such that the seal

is visible from the top of the cover and the open side

faces the gears. Press the bearing in until it is fully

seated in the case (Fig. 019).

Fig019 3428-0159

A. Tool P/N 27-0490

Fig020 3428-0166

A. Fill/Check B. Plug