Adjusting The Self-Propel Drive Cable; Lubricating The Self-Propel Drive; Changing The Engine Oil - Toro 20833 Operator's Manual

Important
Replace a cracked, fouled, or dirty spark
plug. Do not clean the electrodes because grit entering the
cylinder could damage the engine.
5. Set the gap on the new plug to 0.030 in. (0.76 mm)
(Fig. 19).
1
Figure 19
1. 0.030 in. (0.76 mm)
6. Install the spark plug and the gasket seal.
7. Torque the spark plug to 15 ft-lb (20 N m).
8. Connect the wire to the spark plug.
Adjusting the Self-propel Drive
Cable
If the top speed begins to slow on the lawn mower, adjust
the self-propel drive cable.
1. Stop the engine and wait for all moving parts to stop.
2. Pull the upper handle back as far as possible.
3. Loosen the cable support nut (Fig. 20).
4
3
Figure 20
1. Cable jacket
2. Cable support
4. Remove the belt cover.
5. Push the belt guide tab down until it contacts the lawn
mower, then hold it in place (Fig. 21).
986
1
2
m-4205
3. Nut
4. Upper handle
14
Figure 21
1. Belt guide tab
6. Pull the cable jacket down (toward the lawn mower) to
remove all the slack in the cable (Fig. 20).
7. While holding the cable jacket down, release the drive
bracket and tighten the nut on the cable support
(Fig. 20).
8. Install the belt cover.
Lubricating the Self-propel
Drive
After every 25 operating hours or at the end of the season,
lubricate the rear wheels.
1. Wipe the grease fittings with a clean rag (Fig. 22).
1
Figure 22
1. Grease fitting (2)
2. Install a grease gun onto each fitting and gently apply 2
or 3 pumps of #2 multi-purpose lithium base grease.
Important Applying grease using excess pressure may
damage the seals.

Changing the Engine Oil

Change the oil after the first 5 operating hours and then
after every 50 operating hours or every season. Run the
engine just before changing the oil to warm the oil. Warm
oil flows better and carries more contaminants.
Note: Change the oil after every 25 operating hours when
operating under a heavy load or in high temperatures.
1