5. Install the dipstick securely.
6. Dispose of the used oil properly at a local recycling
center.
Lubricating the Wheel Gears
Service Interval: Yearly
1. Remove the wheel bolt in the center of each rear
wheel and remove the rear wheels.
2. Apply a lubricating oil to the inner and outer sides
of the gear as shown in Figure 45.
3. Install the rear wheels.
Figure 44
Figure 45
Lubricating the Upper Handle
Service Interval: Yearly
Model 20996 only
Lubricate the left and right sides of the upper handle
with a low-viscosity silicone spray lubricant yearly or
as needed.
1. Spray the outer plastic end of the inner handle
(Figure 46).
Note: Use the straw that comes with the spray can
to direct the spray.
2. Push the upper handle fully down and spray the
inner plastic surface of the outer handle (Figure 47).
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Figure 46
Figure 47