Service - 66 FX20 Operator’s Manual
50 Hour
CMW
50 Hour
Vacuum System
Check Water Pump Belt Tension
Check belt every 50 hours for correct tension,
damage or wear. Replace worn belt. Tighten as
needed. See “Adjust Water Pump Belt Tension”
on page 78.
To check
1. Turn ignition to STOP and remove key.
2. Apply moderate thumb pressure to belt
between pulleys.
3. Belt is properly tensioned when deflection is
about 1/4” (5-8 mm).
Location Task Notes
Vacuum
System
Check water pump belt tension
Check blower belt tension
Check blower relief valve
Lube blower bearings MPG
Check water pressure hoses
Check vacuum air filter and hoses
Debris Tank Lube door handle screw