20 DR
®
TOW-BEHIND FIELD and BRUSH MOWER
Height Adjuster Threads
Tools and Supplies Needed:
Wire Brush and Rags
Super Lube
1. Raise the Deck to its highest position.
2. Clean any dirt or debris from the Height Adjuster threads with a Wire Brush
and Rags (Figure 29).
3. Apply Super Lube to the full length of threads.
4. Lower the Deck to distribute the lubrication.
Removing and Replacing the Engine Oil and Filter (some engines may not have
an oil filter)
Note: Refer to the Engine Owner’s manual for more detailed instructions for Engine
maintenance. Drain the oil when the Engine is warm. Warm oil drains quickly and
completely.
Tools and Supplies Needed:
Oil Filter Wrench (Pro and Pro XL Models)
Rags and an approved container for used oil
SAE 30 High Detergent Oil
1. Position an appropriate drain container near the Drain Hose.
2. Remove the Oil Fill Cap/Dipstick (Figure 30).
3. Turn the Oil Drain Cap a quarter turn counterclockwise and open the end of
the Drain Hose Assembly.
4. Remove the Oil Drain Hose Assembly from the Bracket and lower the Cap
end over the Container to drain.
5. Pro and Pro XL Models: The Engine Oil Filter is located on the side of the
Engine (Figure 31). Using an Oil Filter Wrench, or grasping the Oil Filter
firmly with your hand, unscrew the Oil Filter counterclockwise from the
Engine. BE SURE THAT THE OLD FILTER GASKET COMES OFF WITH THE
FILTER.
6. Pro and Pro XL Models: Wipe the mounting base for the Oil Filter with a
clean cloth.
7. Pro and Pro XL Models: Apply a thin coat of clean motor oil to the new Oil
Filter Gasket. DO NOT USE GREASE OR USED OIL.
8. Pro and Pro XL Models: Line up the threads carefully to avoid cross
threading and screw the new Oil Filter on until the Filter Gasket contacts the
base, and then tighten the Oil Filter 3/4 to 1 turn. DO NOT OVER
TIGHTEN.
9. Mount the Oil Drain Hose Assembly onto the Bracket and replace the Oil Fill
Cap.
10. Refill the oil by following the instructions in Chapter 2.
Note: Be sure to use environmentally safe disposal procedures in the disposing of the
used oil.