RIDGID RD903600 Operator's Manual download pdf (Page 15)

15 — English

MAINTENANCE

WARNING:

When servicing, use only identical replacement

parts. Use of any other parts could create a hazard

or cause product damage.

Only the parts shown on the parts list are intended to be

repaired or replaced by the customer. All other parts should

be replaced at an authorized service center.

GENERAL MAINTENANCE

Keep the generator in a clean and dry environment where it

is not exposed to dust, dirt, moisture, or corrosive vapors.

Do not allow the cooling air slots in the generator to become

clogged with foreign material such as leaves, etc.

Do not use a garden hose to clean the generator. Water

entering the fuel system or other internal parts of the unit can

cause problems that will decrease the life of the generator.

To clean the unit:

Use a soft bristle brush and/or vacuum cleaner to loosen

and remove dirt and debris.

Clean air vents with low pressure air that does not exceed

25 psi.

Wipe the exterior surfaces of the generator with a damp

cloth.

CHECKING/CLEANING AIR FILTER

See Figure 15.

For proper performance and long life, keep air filter clean.

Remove the screws from the air filter cover. Remove cover

and set aside.

Remove the filter element.

If the filter element is dirty, clean with warm, soapy water.

Rinse and let dry.

Apply a light coat of engine lubricant to the element, then

squeeze it out.

Replace the element in the air filter unit.

Replace the air filter cover and latch to secure.

NOTE: Do not run the generator without the air filter. Rapid

engine wear will result.

CHANGING ENGINE LUBRICANT

See Figure 16.

Remove the oil cap/dipstick.

Place a container underneath the oil drain plug to collect

used lubricant as it drains.

Unscrew the oil drain plug and remove.

Allow lubricant to drain completely.

Reinstall the oil drain plug and tighten securely.

Refill with lubricant following the instructions in the

Checking/Adding Lubricant section.

Reinstall the oil cap/dipstick.

NOTE: Used lubricant should be disposed of at an approved

disposal site. See your local oil retailer for more information.

SPARK PLUG MAINTENANCE

See Figure 17.

The spark plug must be properly gapped and free of deposits

in order to ensure proper engine operation. To check:

Remove the spark plug cap.

Clean any dirt from around base of spark plug.

Remove spark plug using wrench (not included).

Inspect spark plug for damage, and clean with a wire

brush before reinstalling. If insulator is cracked or chipped,

spark plug should be replaced.

NOTE: If replacing, use the following recommended spark

plugs or equivalent: NGK BR-6HS or Champion RL86C.

Measure plug gap. The correct gap is 0.028−0.031 in.

(0.7-0.8 mm). To widen gap, if necessary, carefully bend

the ground (top) electrode. To lessen gap, gently tap

ground electrode on a hard surface.

Seat spark plug in position; thread in by hand to prevent

cross-threading.

Tighten with wrench to compress washer. If spark plug

is new, use 1/2 turn to compress washer appropriate

amount. If reusing old spark plug, use 1/8 to 1/4 turn for

proper washer compression.

NOTE: An improperly tightened spark plug will become

very hot and could damage the engine.

CLEANING THE EXHAUST PORT AND MUFFLER

Depending on the type of fuel used, the type and amount of

lubricant used, and/or your operating conditions, the exhaust

port and muffler may become blocked with carbon deposits.

If you notice a power loss with your gas-powered products,

you may need to remove these deposits to restore perfor-

mance. We highly recommend that only qualified service

technicians perform this service.

SPARK ARRESTOR

See Figure 18.

Inspect the spark arrestor for breaks or holes. Replace

if necessary. To purchase a replacement spark arrestor

contact RIDGID customer service at 1-866-539-1710.

Use a brush to remove carbon deposits from the spark

arrestor screen as needed.

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RIDGID RD903600 Operator's Manual Page 15

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