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

Models: 378 370 389 387

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DRIVE BELT REMOVAL AND REPLACEMENT (Model 380 Series)

If you need to replace a worn or broken drive belt, follow steps 1 through 30.

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

Step 10. Loosen hex lock nut holding idler bearing.

Step 11. Using a pair of pliers, pull back and rotate belt keeper bracket from the slot on idler pulley.

Step 12. Slide the belt out from between the Belt Keeper Bracket and the idler pulley.

Transmission

Pulley

Belt

Belt Keeper

 

 

 

 

 

 

Bracket

 

 

 

Idler Pulley

 

 

Transmission

Bracket

 

 

 

 

 

 

 

 

 

 

 

Idler Pulley

 

 

 

Bolt and

 

 

 

Locknut

 

 

 

Hex Head Screw

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