Husqvarna 7021CH1 Engine, Cleaning, TO CHANGE ENGINE OIL See Fig, AIR FILTER See Fig, Muffler

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ENGINE

MAINTENANCE

ENGINE

LUBRICATION

Use only high quality detergent oil rated with API service classifi cation SG–SL. Select the oil's SAE viscosity grade according to your expected operating temperature.

SAE VISCOSITY GRADES

 

 

 

 

 

 

 

 

 

 

SAE 30

 

 

 

 

 

 

5W-30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F

-20

0

 

 

30 32 40

 

60

80

100

C

-30

-20

-10

0

10

20

30

40

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE

NOTE: Multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, and you should check your engine oil level frequently to avoid possible engine damage from running low on oil.

Change the oil after every 25 hours of operation or at least once a year if the lawn mower is not used for 25 hours in one year.

Check the crankcase oil level before starting the engine and after each fi ve (5) hours of continuous use. Tighten oil plug securely each time you check the oil level.

TO CHANGE ENGINE OIL (See Fig. 11)

NOTE: Before tipping lawn mower to drain oil, empty fuel tank by running engine until fuel tank is empty.

1.Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.

2.Remove engine oil cap; lay aside on a clean surface.

3.Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to remove any oil trapped inside of engine.

CONTAINER

FIG. 11

4.Wipe off any spilled oil from mower or side of engine.

5.Slowly pour oil down the oil fi ll spout, stopping every few ounces to check the oil level with the dipstick.

6.Stop adding oil when you reach the FULL mark on the dipstick. Wait a minute to allow oil to settle.

7.Continue adding small amounts of oil, rechecking the dipstick until oil level settles at FULL. DO NOT over- fi ll, or engine will smoke heavily from the muffl er on startup.

8.Always be sure to retighten oil dipstick before starting engine.

9.Reconnect spark plug wire to spark plug.

AIR FILTER (See Fig. 12)

Your engine will not run properly using a dirty air fi lter. Replace paper cartridge every 100 hours of operation or every season, whichever occurs fi rst. Service air cleaner more often under dusty conditions.

1.Loosen screws and remove cover.

2.Carefully remove cartridge.

3.Clean by gently tapping on a fl at surface. If very dirty, replace cartridge.

CAUTION: Petroleum solvents,such as kerosene, are not to be used to clean cartridge.Theymaycausedeterioration of the cartridge. Do not oil cartridge. Do not use pressurized air to clean or dry cartridge.

4. Install cartridge, then replace cover.

SCREWS

COVER

CARTRIDIGE

BASE

FIG. 12

MUFFLER

Inspect and replace corroded muffl er as it could create a fi re hazard and/or damage.

SPARK PLUG

Replace spark plug at the beginning of each mowing season or after every 100 hours of operation, whichever occurs

rst. Spark plug type and gap setting are shown in the “PRODUCT SPECIFICATIONS” section of this manual.

CLEANING

IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER HOUSING FREE OF BUILT-UP GRASS AND TRASH. CLEAN THE UNDERSIDE OF YOUR MOWER AFTER EACH USE.

CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug.

Clean the underside of your lawn mower by scraping to remove build-up of grass and trash.

Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life.

Keep fi nished surfaces/wheels free of gasoline, oil, etc.

We do not recommend using a garden hose to clean lawn mower unless the electrical system, muffl er, air fi lter and carburetor are covered to keep water out. Water in engine can result in shortened engine life.

CLEAN UNDER DRIVE COVER

Clean under drive cover at least twice a season. Scrape un- derside of cover with putty knife or similar tool to remove any

11build-up of trash or grass on underside of drive cover.

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Contents 7021CH1 I. GENERAL OPERATION SAFETY RULESSafe Operation Practices for Walk-Behind Mowers II. SLOPE OPERATIONCUSTOMER RESPONSIBILITIES TABLE OF CONTENTSPRODUCT SPECIFICATIONS V. GENERAL SERVICETO REMOVE LAWN MOWER FROM CARTON ASSEMBLYHOW TO SET UP YOUR LAWN MOWER TO INSTALL ATTACHMENTSOPERATOR PRESENCE CONTROL BAR - must be held MEETS CPSC SAFETY REQUIREMENTSOPERATION KNOW YOUR LAWN MOWERENGINE ZONE CONTROL HOW TO USE YOUR LAWN MOWERTO ADJUST CUTTING HEIGHT See Fig ENGINE SPEEDADD OIL See Fig WHEN CONVERTING YOUR LAWN MOWERBEFORE STARTING ENGINE TO EMPTY GRASS CATCHER See FigMOWING TIPS ADD GASOLINE See FigTO STOP ENGINE TO START ENGINEBEFORE EACH USE MAINTENANCELUBRICATION CHART GENERAL RECOMMENDATIONSBLADE CARE LAWN MOWERTIRES DRIVE WHEELSTO CHANGE ENGINE OIL See Fig CLEANINGCLEAN UNDER DRIVE COVER ENGINEREAR DEFLECTOR SERVICE AND ADJUSTMENTSTO ADJUST CUTTING HEIGHT TO ADJUST HANDLE See Figs. 14 thruFUEL SYSTEM STORAGEOTHER HANDLE See Figs. 17 andCAUSE TROUBLESHOOTING POINTSPROBLEM Loss of powerSERVICE NOTES Page DESCRIPTION PARTPage DESCRIPTION ANR AVQ SUH RANTYWAR TEMENTSTA0220 SIEIT ILIBS ONPS ER REM OTS UC 5ON ITC ES