Simplicity 300 Series, 1600 Series, 2600 Series Operator's Manual page 31

Regular Maintenance
Figure 40. Internal Transmission Filter Service
A. Filter Access Cap
5. Remove and replace the internal transmission filter
(B, Figure 40).
6. Reinstall the filter access cap (A, Figure 40) and the
two 14mm drain plugs (A, Figure 41).
7. Using a long funnel, add 2 quarts of oil to the differ-
ential fill (See Figure 37). The differential fill cap
should have been removed earlier).
8. Reinstall the differential fill cap (A, Figure 37).
9. Remove the expansion chamber access plug (A,
Figure 42) and expansion chamber cover. Add 2
quarts (1.9L) of oil to the expansion chamber a few
ounces at a time.
10. Reinstall the expansion chamber cover and access
plug (Figure 42).
11. Test run the tractor for 10 minutes. Drive forward
and backward; raise and lower the attachment lift
several times.
12. Recheck the transmission oil level. There should be
7/16" (1 cm) of oil visible in expansion chamber. DO
NOT OVERFILL. Empty space is required for heat
expansion.
B
A
B. Internal Filter
30
A
Figure 41. Transmission Drain Plugs
A. 14mm Drain Plugs
B. Filter Access Cap
A
Figure 42. Seat Deck Access Plug
A. Expansion Chamber Access Plug
B