CALL TOLL FREE 1-800-DR-OWNER 33
Removing and Replacing the Engine Oil and Filter
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION, STOP THE ENGINE, WAIT FIVE
(5) MINUTES TO ALLOW ALL MOVING PARTS TO COME TO A COMPLETE STOP AND COOL. DISCONNECT
THE SPARK PLUG WIRES, KEEPING THEM AWAY FROM THE SPARK PLUGS.
Tools and Supplies Needed:
• SAE 30 HD (see page 21)
• Oil Filter Wrench (obtainable from a local auto parts or hardware store)
• 1/2" Wrench (19HP Belt Guard Bolts)
• Suitable container for used oil
• Rags
NOTE 1: The engine is equipped with a Drain Valve for ease in changing the oil (Figure 12 on page 34).
NOTE 2: Drain the oil when the engine is warm. Warm oil drains quickly and completely.
1. Remove the Belt Guard (19HP engine) using a 1/2" wrench.
2. Position a suitable oil receptacle under the engine oil Drain Valve (located on the trailer hitch side of the
engine) and remove the engine oil Fill Cap (Figure 7, page 22).
3. Open the engine oil Drain Valve by pushing it in and turning counterclockwise (Figure 12 on page 34).
Allow the used oil to drain completely, and then close the Drain Valve.
4. Using an Oil Filter Wrench, or grasping the oil filter firmly with your hand, unscrew the oil filter
counterclockwise from the engine (Figure 12 on page 34). BE SURE THAT THE OLD FILTER GASKET
COMES OFF WITH THE FILTER.
5. Wipe the mounting base for the oil filter with a clean cloth.
6. Apply a thin coat of clean motor oil to the new oil filter gasket. DO NOT USE GREASE.
7. Line up the threads carefully to avoid cross threading and screw the new filter on until the filter gasket
contacts the base, then tighten the oil filter 3/4 to 1 turn. DO NOT OVER TIGHTEN.
8. Replace the engine oil using SAE 30 HD oil. See page 21.
9. Reattach the spark plug wires and the negative battery terminal cable.
10. Start the engine and check for oil leaks around the filter base. Correct any oil leaks by simply tightening
the oil filter 1/8 of a turn at a time.
NOTE: If you are not reusing the oil, be sure to use environmentally safe disposal procedures in the disposing of the
used oil.