Use And Care Manual

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Owner’s Manual for Stump Grinder 21

Maintenance and Troubleshooting

1. See Figure 4-5. Place a waste oil container under

oil drain plug (C).

Figure 4-5. Oil Drain

2. Remove oil drain plug and let oil drain into the

container.

3. Replace oil drain plug and remove oil dipstick (D).

4. Add 16 oz (473 ml) of oil into the oil fill and wait one

minute for the oil to settle. See Adding Oil for

information on engine oil requirements.

5. Check the dipstick and continue adding a few

ounces of oil at a time, rechecking the dipstick until

the oil reaches the fill mark. Do not overfill

6. Replace battery bracket and reconnect battery.

Servicing Spark Plug

1. Clean area around spark plug.

2. Remove and inspect spark plug. See Figure 4-6.

Inspect electrode gap with wire feel gauge and

reset spark plug gap to .028-.032 in (0.7-0.8 mm). .

Figure 4-6. Spark Plug

3. Replace spark plug if electrodes are pitted, burned

or porcelain is cracked. Use only a TORCH F6RTC

or equivalent.

4. Install spark plug. If a new spark plug is used, turn

it 1/2 turn after compressing the gasket. If reinstall-

ing a used spark plug, turn it 1/8-1/4 turns after

compressing the gasket.

Lubricating Cables

1. Lubricate the upper ends of the throttle and brake

cables with SAE 30 oil where the cable enters the

sheathing.

2. Shift the cable levers to work the oil in between the

cable and sheathing.

Replacing Belt

1. See Figure 4-7. Remove the three bolts and

locknuts (A) from the belt guards with two

1/2" wrenches and remove the outer belt guard (B).

Figure 4-7. Belt Guard Bolts and Locknuts

See

Figure 4-8

. Place a 9/16" wrench onto idler pul-

ley bolt (A) and rotate belt tensioner away from belt.

3. Rotate the cutting head to roll the belt over the top

of the pulley (B) and remove the belt.

Figure 4-8. Belt Guard Bolts and Locknuts

4. Route the replacement belt around the clutch pul-

ley (C) and into the idler pulley.

5. Place a 9/16" wrench onto the idler pulley bolt (A)

and rotate the belt tensioner away from the belt.

Start the belt over the top of cutting head pulley then

rotate the cutting head to roll the belt onto the pulley.

7. Replace the outer blade guard and secure with the

three bolts and locknuts using two 1/2” wrenches

006067

000211

WARNING

(000472)

Personal injury. Use appropriate personal

protective equipment when working on unit.

Failure to do so could result in death or

serious injury.

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