DR 16.5 Safety & Operating Instructions Manual page 27

Removing and Replacing the Engine Oil
Tools and Supplies Needed

SAE 30 HD Oil

12mm Wrench

Suitable container for used oil

Rags
Note: Drain the oil when the engine is warm. Warm oil drains quicker and more
completely.
1. Position a suitable oil receptacle under the engine oil Drain Plug and
remove the Engine Oil Check/Fill Cap (Figure 41a or 41b).
2. Remove the Oil Drain Plug from the Engine Block with a 12mm Wrench.
Allow the used oil to drain completely, and then replace the Oil Drain Plug.
3. Replace the engine oil using SAE 30 HD oil (see "Adding Engine Oil and
Gasoline" in Chapter 2 for instructions on adding oil).
4. Reattach the spark plug wire.
Note: Be sure to use environmentally safe procedures when disposing of the used oil.
Removing, Replacing and Adjusting the Drive Belt
Use only DR Belts on your machine. The belts have been thoroughly tested
and proven for many hours of use.
Note: The 16.5 Model has one Belt and the 21.0 has two.
Tools Needed:

Tape Measure

1/8" Allen Wrench

7/16" Wrench

1/2" Wrench

Two 9/16" Wrenches

Straightedge
REMOVING THE BELT
1. Remove the Bolt, Washer and Locknut that attaches the lower portion of the
Guard to the Base using two 1/2" Wrenches (Figure 42).
2. Remove the two Locknuts and Washers at the center area of the Guard
using a 1/2" Wrench.
3. Remove the Guard.
4. Loosen the four Engine Bolts (two on the left side and two on the right side)
using two 9/16" Wrenches (Figure 43).
5. Loosen the Adjusting Nut on the Belt Tensioner to create about a 1/2" gap,
then slide the Engine away from you until the belt is loose enough to
remove.
Figure 41a: 16.5 Model
Figure 41b: 21.0 Model
Locknut
and
Washer
Figure 42
Figure 43
CONTACT US AT www.DRpower.com
Oil Check/Fill
Oil Drain Plug
Oil Check/Fill
Oil Drain Plug
Bolt, Washer
and Locknut
Engine
Bolts
Belt Tensioner
27