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Maintenance Chart
* In dusty conditions or when airborne debris is
present, clean more often.
Flywheel Brake
Model Series 97700, 99700, 110000, 120000
Vertical Shaft
The flywheel brake is part of the safety control
system required for some applications. While
running at FAST speed position, the flywheel
brake MUST stop the engine within three
seconds, when the operator releases the
equipment safety control.
Test Brake Torque
1. Disconnect spark plug wire.
2. Unscrew and/or pry off static guard
(A, Figure 2).
3. Unscrew and remove fuel tank (B).
Figure 2
4. Remove dipstick and oil fill tube
(A, Figure 3).
5. Unscrew and remove blower housing/
rewind assembly (B).
First 5 Hours
• Change oil
Every 8 Hours or Daily
• Check engine oil level
• Clean area around muffler and
controls
• Clean finger guard
Every 25 Hours or Annually
• Clean air filter*
• Clean pre-cleaner*
Every 50 Hours or Annually
• Change engine oil
• Check muffler and spark arrester
Annually
• Replace air filter
• Replace pre-cleaner
• Replace spark plug
• Replace fuel filter
• Clean air cooling system*