yellow jacket BULLET X Operation And Maintenance Manual page 9

Diagnostics Chart continued
Condition Pump Area
Motor areas
Unusually
Noisy
Pump cartridge
Motor
High
Temperature
Pump
Possible Problem
Worn motor
Losse motor bolts
Drive coupling
Dirt, low, improper oil
Air leaks:
1. Caps/connections
2. Gaskets/O-rings
3. Fittings
4. System leak
Low voltage
Dirty oil
Low oil
Parts friction
Too small for system
Air leaks
Solution
Replace motor
Tighten bolts
Adjust/replace coupling
Flush and replace oil
Tighten
Replace/put on oil
Replace/reseal
Isolate pump with blank-off
Value and repair system leak
Use properly sized extension
cord
Flush and replace
Add/replace
Replace oil/call factory
Size pump for system
Replace/repair
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