Servicing The Spark Plug - Toro 2603 Operator's Manual

4. Remove the dipstick.
5. Tip the machine onto its side, with the dipstick down,
to drain the used oil out through the oil fill tube.
6. Return the machine to the operating position.
7. Slowly pour oil into the oil fill hole, wait 3 minutes,
and check the oil level on the dipstick by wiping the
dipstick clean and then inserting, but not screwing
in, the oil fill cap into the hole.
Note: Max. fill: 0.59 l (20 oz.), type: SAE 30 or
SAE 10W-30 detergent oil with an API service
classification of SF, SG, SH, SJ, SL, or higher.
Note: Fill the engine crankcase with oil until the
dipstick indicates that the engine oil level is correct
as shown in (Figure 20). If you overfill the engine
with oil, remove the excess oil as directed in 5.
2
1
g017332
1. The oil level is at its
maximum.
2. The oil level is too
high—remove oil from
the crankcase.
8. Install the dipstick and hand tighten it securely.
9. Dispose of the used oil properly at a local recycling
center.

Servicing the Spark Plug

Service Interval: Every 100 hours
Check the spark plug after every 100 operating hours.
Use an Champion RN9YC spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug.
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
3
Figure 20
3. The oil level is too
low—add oil to the
crankcase.
Important: Replace a cracked, fouled, or
dirty spark plug. Do not clean the electrodes
because grit entering the cylinder can damage
the engine.
5. Set the gap on the plug to 0.76 mm (0.030 inch)
(Figure 21).
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
6. Install the spark plug and the gasket seal.
7. Torque the plug to 20 N-m (15 ft-lb).
8. Connect the wire to the spark plug.
Replacing the Cutterbar
Service Interval: Yearly
Important: You will need a torque wrench to install
the blade properly . If you do not have a torque
wrench or are uncomfortable performing this
procedure, contact an Authorized Service Dealer.
Examine the blade whenever you run out of gasoline. If
the blade is damaged or cracked, replace it immediately.
If the blade edge is dull or nicked, have it sharpened or
replace it.
WARNING
The blade is sharp; contacting the blade can result
in serious personal injury.
• Disconnect the wire from the spark plug.
• Wear gloves when servicing the blade.
1. Disconnect the spark plug wire from the spark plug.
Refer to Preparing for Maintenance.
2. Tip the machine onto its side, with the air filter up.
3. Use a block of wood to hold the blade steady.
4. Remove the blade (turn the blade bolt
counterclockwise), saving all the mounting hardware.
14
Figure 21