Kohler COURAGE SV470-610 Manuale d'uso - Pagina 11

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Figure 11. Installing Air Cleaner Element.

Clean Air Intake/Cooling Areas

To ensure proper cooling, make sure the grass screen,

cooling fins, and other external surfaces of the engine

are kept clean at all times.

Annually or every 100 hours of operation (more often

under extremely dusty, dirty conditions), remove

the blower housing and any other cooling shrouds.

Clean the cooling fins and external surfaces as

necessary. Make sure the cooling shrouds are

reinstalled. Torque the blower housing screws to

7.5 N·m (65 in. lb.).

NOTE: Operating the engine with a blocked grass

screen, dirty or plugged cooling fins, and/or

cooling shrouds removed, will cause engine

damage due to overheating.

Ignition System

This engine is equipped with a dependable electronic

CD ignition system. Other than periodically checking/

replacing the spark plug, no maintenance, timing, or

adjustments are necessary or possible with this

system.

In the event starting problems should occur which are

not corrected by replacing the spark plug, see your

Kohler Engine Service Dealer for trouble analysis.

Check Spark Plug

Every 2 years or 200 hours of operation, remove the

spark plug, check condition, and reset the gap or

replace with a new plug as necessary. The standard

spark plug is a Champion

12 132 02-S). RFI compliant engines use a Champion

QC12YC (Kohler Part No. 20 132 02-S) spark plug. A

high-performance spark plug, Champion

3071 (Kohler Part No. 25 132 12-S) is also available.

Equivalent alternate brand plugs can also be used.

Spark plug replacement is recommended at 500 hours.

1. Before removing the spark plug, clean the area

around the base of the plug to keep dirt and

debris out of the engine.

RC12YC (Kohler Part No.

Platinum

Due to the deep recess around the spark plug,

blowing out the cavity with compressed air is

usually the most effective method for cleaning.

The spark plug is most accessible when the

blower housing is removed for cleaning.

2. Remove the plug and check its condition. Replace

the plug if worn or reuse is questionable.

NOTE: Do not clean the spark plug in a machine

using abrasive grit. Some grit could

remain in the spark plug and enter the

engine causing extensive wear and

damage.

3. Check the gap using a wire feeler gauge. Adjust

the gap by carefully bending the ground

electrode. See Figure 12. Gap plugs to 0.76 mm

(0.030 in.).

4. Reinstall the spark plug into the cylinder head.

Torque the spark plug to 24-30 N·m (18-22 ft. lb.).

5. Reconnect the spark plug lead and reinstall the

blower housing, if removed previously. Torque

the blower housing screws to 7.5 N·m (65 in. lb.).

Wire Gauge

Spark Plug

Ground

Electrode

Figure 12. Servicing Spark Plug.

Battery Charging

WARNING: Explosive Gas!

Batteries produce explosive hydrogen gas while being charged.

To prevent a fire or explosion, charge batteries only in well

ventilated areas. Keep sparks, open flames, and other sources of

ignition away from the battery at all times. Keep batteries out of

the reach of children. Remove all jewelry when servicing

batteries.

Before disconnecting the negative (-) ground cable, make sure all

switches are OFF. If ON, a spark will occur at the ground cable

terminal which could cause an explosion if hydrogen gas or

gasoline vapors are present.

0.76 mm

(0.030 in. )

Gap