Yard Machines 378, 387, 389, 370 manual Disconnect the spark plug and ground it

Models: 378 370 389 387

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Step 1. Disconnect the spark plug and ground it.

DRIVE BELT REMOVAL AND REPLACEMENT (Model 370 Series)

If you need to replace a worn or broken drive belt, follow steps 1 through 22.

Step 1. Disconnect the spark plug and ground it.

Step 2. Drain the fuel tank.

Step 3. Remove rear hub caps and wheels.

Step 4. Remove eight phillips head screws.

5

6

7

4

(Behind Wheel)

8

1

2

3

Step 5. Tip mower back on its handle and block securely.

Step 6. Remove blade and blade adapter.

Step 7. Remove three hex head screws holding small baffle.

Step 8. Remove small baffle.

Step 9. Remove large baffle.

Small Baffle

Manual backgroundBlade Adapter

Blade

Large Baffle

Hex Head Screw

Step 10. Loosen hex lock nut holding idler bearing.

Step 11. Push back and rotate belt keeper.

Step 12. Remove and replace belt.

Step 13. Replace belt keeper to its original position. Tighten the hex lock nut.

Belt Keeper

Hex Lock Nut

Mower shown tipped on engine for clarity. Remember, only tip mower back on its handle with the spark plug facing up. Otherwise, oil will spill if turned upside down.

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Yard Machines 378, 387, 389, 370 manual Disconnect the spark plug and ground it