Pump Lubrication; Pump Maintenance - Black Max BM803300H Manual Del Operador

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CLEANING/REPLACING THE AIR FILTER

See Figure 21.

A dirty air filter will cause starting difficulty, loss of perfor-

mance, and shorten the life span of the engine. Check the

air filter monthly. For best performance, replace the paper

air filter at least once a year.

 Remove the wing nut from the air cleaner cover, then

remove the cover.

 Remove the wing nut from the air cleaner assembly, then

remove the air cleaner assembly.

 Separate the foam filter from the paper filter. Inspect both

filters and replace if damaged.

 To clean the paper filter, use compressed air or tap the

paper filter element several times on a hard surface to

remove dirt.

 Clean the foam filter with warm soapy water. Rinse and

let dry.

 Apply a light coat of engine lubricant to the foam filter

element, then squeeze it out.

 Reinstall the foam filter over the paper filter.

 Reinstall the air cleaner assembly, then reinstall the wing

nut to secure.

NOTE: Make sure the gasket is in place before reinstalling

the air cleaner assembly.

 Using a damp cloth, wipe the inside of the air cleaner

cover. Take care not to allow dust to enter the carburetor.

 Reinstall the air cleaner cover, then reinstall the wing nut

to secure.

NOTE: Do not run the pressure washer without the air cleaner

assembly in place. Rapid engine wear will result.

CHANGING ENGINE LUBRICANT

See Figure 22.

 Shut off the engine.

 Clean the area around the oil cap/dipstick, then remove

the oil cap/dipstick.

NOTE: Remove the dipstick to allow lubricant to drain

easier and more quickly.

 Disconnect the spark plug wire from the engine.

 To drain the lubricant, remove the drain plug from the

bottom of the engine. Drain lubricant into an approved

container, then reinstall drain plug and tighten securely.

NOTE: Drain the lubricant while the engine is still warm

but not hot. Warm lubricant will drain quickly and more

completely.

MAINTENANCE

WARNING:

Do not change engine lubricant while it is hot. Accidental

contact with hot engine lubricant could result in serious

burns.

 Fill with lubricant following the instructions in Adding/

Checking Engine Lubricant earlier in this manual. For

amount of lubricant needed to refill, see Product Speci-

fications earlier in this manual.

 Before using the pressure washer, check to ensure that

no lubricant is leaking from the engine.

NOTE: Consult hazardous waste management guidelines in

your area for the proper way to dispose of used lubricant.

CHECKING THE SPARK PLUG

See Figure 23.

 Clean the area around the base of the spark plug before

removing to keep dirt and debris out of the engine. Re-

move spark plug.

 Clean off carbon deposits on the spark plug electrode

using a plug cleaner or wire brush. Replace the plug if

worn or reuse is questionable. For replacement spark

plug, see Product Specifications earlier in this manual.

 Check electrode gap. The gap should be 0.7 – 0.8 mm

(0.028 – 0.031 in.). Adjust the gap, if necessary, by care-

fully bending the ground electrode.

 Check the condition of the spark plug gasket.

 Reinstall spark plug. Start the spark plug in its threads

by hand and finger-tighten.

 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.