Corrosion Protection; Valve Clearance; Battery - Generac Power Systems 7 kW NG Repair Manual

Section 1.8
General Maintenance
 The exhaust from this product gets extremely hot and
remains hot after shutdown. High grass, weeds, brush
and leaves must remain clear of the exhaust. Such
materials may ignite and burn from the heat of the
exhaust system.
Figure 22. Cooling Vent Locations

CORROSION PROTECTION

Periodically wash and wax the enclosure using automotive type
products. Frequent washing is recommended in salt water/
coastal areas. Spray engine linkages with a light oil such as
WD-40.
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PART 1

VALVE CLEARANCE

Proper valve clearance is vital to ensuring longevity of the
engine. After the first 6 months of operation, check the engine
valve clearance and adjust as necessary. Checking of the
engine valve clearance thereafter periodically will increase
reliability of the Generator. Refer to Test 63 for Specification
and adjustment procedure.
Some symptoms of an engine with valves in need of adjustment
are:
• Hard starting
• Smoke out of the exhaust
• Rough running
• Lack of horse power

BATTERY

Performing proper battery maintenance at the required intervals
will allow for proper starting of the Generator during a power
outage. Some common things to look for and check during
maintenance are:
• Inspect the battery posts and cables for tightness and corro-
sion. Tighten and clean as necessary.
• Check the battery fluid level of unsealed batteries and, if
necessary, fill with Distilled Water only. Do not use tap water
in batteries.
• Have the state of charge and conditions checked. This
should be done with an automotive-type battery hydrometer.
Note: See Test 45 for further testing the state of a battery.
GENERAL INFORMATION