Generac 04675-3 Benutzerhandbuch

Figure 4.7 — 12 kW and 15 kW Engine

Air Cleaner

Cover

Filter

Screw

4.6 SPARK PLUG(S)

Reset the spark plug(s) gap or replace the spark

plug(s) as necessary. See Section 4.13 for mainte-

nance requirements.
1. Clean the area around the base of the spark

plug(s) to keep dirt and debris out of the engine.

Clean by scraping or washing using a wire brush

and commercial solvent. Do not blast the spark

plug(s) to clean.

2. Remove the spark plug(s) and check the condi-

tion. Replace the spark plug(s) if worn or if reuse

is questionable. See Section 4.13 for recommend-

ed inspection.

3. Check the spark plug gap using a wire feeler

gauge. Adjust the gap to 0.76 mm (0.030 inch)

for 7 kW and 0.50 mm (0.020 inch) for 12/15 kW

by carefully bending the ground electrode (Figure

4.8).

Figure 4.8 – Setting the Spark Plug Gap

4.7 BATTERY MAINTENANCE

The battery should be inspected per the “Service

Schedule,” Section 4.13. The following procedure

should be followed for inspection:
1. Inspect the battery posts and cables for tightness

and corrosion. Tighten and clean as necessary.

2. Check the battery fluid level of unsealed batteries

and, if necessary, fill with DISTILLED WATER

ONLY. DO NOT USE TAP WATER IN BATTER-

IES.

3. Have the state of charge and condition checked.

This should be done with an automotive-type bat-

tery hydrometer.

DANGER

Do not dispose of the battery in a fire. The

battery is capable of exploding.

A battery presents a risk of electrical shock

and high short circuit current. The following pre-

cautions are to be observed when working on

batteries:

• Remove watches, rings or other metal objects;

• Use tools with insulated handles;

• Wear rubber gloves and boots;

• Do not lay tools or metal parts on top of the

battery; and

• Disconnect charging source prior to connecting or

disconnecting battery terminals.

Do not open or mutilate the battery. Released

electrolyte has been known to be harmful to the

skin and eyes, and to be toxic.

The electrolyte is a dilute sulfuric acid that is

harmful to the skin and eyes. It is electrically

conductive and corrosive. The following

procedures are to be observed:

• Wear full eye protection and protective clothing;

• Where electrolyte contacts the skin, wash it off

immediately with water;

• Where electrolyte contacts the eyes, immediately

flush thoroughly with water and seek medical

attention; and

• Spilled electrolyte is to be washed down with an

acid neutralizing agent. A common practice is to

use a solution of 1 pound (500 grams) bicarbonate

of soda to 1 gallon (4 liters) or water. The bicar-

bonate of soda solution is to be added until the

evidence of reaction (foaming) has ceased. The

resulting liquid is to be flushed with water and the

area dried.

Lead-acid batteries present a risk of fire because

they generate hydrogen gas. The

Section 4 — Maintenance

Air-cooled 7 kW, 12 kW and 15 kW Generators

SET PLUG GAP AT 0.76 mm/0.50 mm

(0.030 inch/0.020 inch)