Husqvarna ST 151 warranty Inch 76 mm

Page 15

MAINTENANCE

15. Disconnect the spark plug wire from the spark plug (Figure 31).

16. Clean around the spark plug.

17. Remove the spark plug from the cylinder head.

1

Figure 31

1. Spark plug wire

IMPORTANT: Replace a cracked, fouled, or dirty spark plug. Do not clean the electrodes because grit entering the cylinder can damage the engine.

18.Set the gap on the plug to 0.030 inch (0.76 mm) (Figure 32).

0.030 inch

(0.76 mm)

Figure 32

19.Install the spark plug and torque it to 20–22 ft-lb (27–30 N-m).

20.Connect the spark plug wire to the spark plug (Figure 31).

21.Reattach primer bulb tube to primer bulb and electri- cal wires on back ignition switch of rear upper cover (Figure 30).

22.Set rear upper cover in place so the two screw holes line up with the rear lower cover and side covers (Figure 33).

1

2

Figure 33

1.Rear upper cover

2.Screw

23.Reattach two screws through the rear covers and into the clip on the side cover (Figure 28).

24.Remove top oil fill cap.

25.Set top cover in place and snap three top cover clips into the rear upper cover (Figure 29).

26.Reinstall top oil fill cap.

27.Reinstall two screws in the side covers that attach to the clips on the top cover.

28.Reinstall two screws in the plenum that attach to the top cover (Figure 28).

29.Reinstall discharge chute with the hardware removed in step 5.

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Contents 115 68 Operator’s ManualSafe Operation Practices for Walk-Behind Snow Throwers TrainingPreparation Maintenance and Storage OperationClearing a Clogged Discharge Chute Know Your Snow Thrower Table of ContentsLoose Parts AssemblySetup Installing the HandleInstalling the Discharge Chute ProcedureFilling the Engine with Oil Product Overview Product OverviewChecking the Engine Oil Level OperationOperation Filling the Fuel TankStarting the Engine Electrical cord can become damaged, causing a shock or fireStopping the Engine Adjusting the Discharge Chute and Chute DeflectorEngaging the Auger Blades Disengaging the Auger BladesClearing a Clogged Discharge Chute Preventing Freeze-up After UseOperating Tips Adjusting the Control Cable Maintenance Maintenance Adjusting the Control CableChanging the Engine Oil Inspecting the Auger Blades/ Scraper BarServicing the Spark Plug Inch 76 mm Replacing the Drive Belt Storage StorageTroubleshooting TroubleshootingService Notes Consumer Wheeled Products Limited Warranty HOW to Obtain Service Consumer Wheeled Limited Warranty Chart Armor Protected Stamped Deck Shell Example Below 07/09/2014 TH/AP
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