FX20 Operator’s Manual Service - 67
50 Hour
CMW
Check Blower Belt Tension
Check belt every 50 hours for correct tension,
damage or wear. Replace worn belt. Both ends of
tube must touch spring caps for belt to be
correctly tensioned. Tighten as needed. See
“Adjust Blower Belt Tension” on page 77.
Check Blower Relief Valve
Check relief valve for proper operation every 50
hours.
To check:
1. Ensure that vacuum inlet valve and drain
valve are both closed.
2. Start engine. Vacuum will start to build.
3. When vacuum goes over relief, check for
suction at the bottom of the relief air filter.
4. If suction is not present, stop engine and
check relief valve.
Lube Blower Bearings
Wipe two zerks clean and lube every 50 hours
with MPG. Inject grease into zerk until clean
grease comes out of relief fittings.
NOTICE: Do not inject grease too quickly.
Drive shaft seal damage could occur.
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