Billy Goat GZ401H, GZ451S owner manual Periodic Maintenance

GZ Owner’s Manual

MAINTENANCE

PERIODIC MAINTENANCE

Periodic maintenance should be performed at the following intervals:

CHANGING BRUSH

1. Wait for engine to cool and disconnect spark plug.

2. Remove the brush guard (item 27) by removing the two screws (item 45) that secure it in place. Use gloves and a shop rag to hold the brush and prevent it from rotating.

3.Using a 3/4" wrench remove brush nut (item 15), and slide brush washer (item 16) off the bearing shaft.

4.Slide the brush (item 6) sideways off of the bearing shaft.

5.Install new brush over the shaft. NOTE: Be sure that to use the nylon bushing that comes with the Billy Goat replacement brush to insure proper fit between the brush and the shaft.

6.Replace the brush washer (item 16), and the brush nut (item 15). Use a 3/4" wrench to torque the nut to 45 ft.lbs to secure the brush in place. Be sure to wear gloves and use a shop rag to hold the brush while tightening. Reinstall the brush guard that was removed in step 2.

CHANGING BELT

1. Wait for engine to cool and disconnect spark plug.

2.Using two 1/2" wrenches, remove the bolt (item 45) and nut (item 52), one on each side, that secures the brush guard (item 27) and the front pulley guard (item 31). Set the two guards aside.

3.Using a 3/8" wrench, remove the three bolts (item 4) that secure the rear pulley guard in place. Set the guard aside.

4.Slide the belt off the engine pulley and over the end of the crankshaft, and discard the old belt.

5.Install the new belt in the reverse order of removal.

6.Replace the guards and secure in place with using the hardware you removed.

NOTE: Use only factory original belts for maximum service life. BGI #610420 Inspect the pulleys when replacing the belt and replace if worn or damaged.

CHANGING PULLEYS

NOTE: Pulleys should be replaced in pairs and not individually to obtain the maximum service life from you unit. 1. Wait for engine to cool and disconnect spark plug.

2. Remove the belt by following the Belt Replacement procedure on the preceding page.

3.Using a 5/32" allen wrench loosen the set screws, two per pulley that secure the pulleys in place.

4.Slide the pulleys off the shafts and slide the new pulleys in place.

5.Use a long straight edge to align the pulleys before tightening the setscrews in place.

6.Torque the setscrews to 15 ft.lbs to secure them.

7.Replace the belt and all guard by referring to the Belt Replacement procedure on the preceding page. NOTE: Use only factory original pulleys as replacement parts. Inspect the belt when replacing the pulleys and replace if worn or damaged.

TIRE AIR PRESSURE

Check at regular intervals and maintain.

Rear Tires - 24 Psi (17 kPa).