Hello Kendall,
 I saw your post when I noticed that the fluid was low on my transmission, couldn’t find my manual so I went to the trusty internet. It let me down so after a couple of hour of looking, I found my manual. This comes directly from the manual for Model 917.255460, a Sears LT4000 Hydro with a 14HP OHV Kohler, 42†cut that I bought in 7/1993.Â
TRANSAXLE PUMP FLUID LEVEL
Check fluid level after every 25 hours of use. Rear drawbar must be removed to check fluid level.
- Remove the four fasteners to remove the drawbar.
- Clean reservoir thoroughly before removing cap.
- Check for proper fluid level in reservoir (should be above the “OIL LEVEL COLD†line).
- If oil is needed, remove cap on reservoir (with a clockwise rotation), and fill to “OIL LEVEL COLD†line with SAE 10W30 oil (API – SG).
- Replace cap securely (do not overtighten).
- Reassemble drawbar and tighten fasteners securely.
 Let me know if you need additional information.
 Mike
