Instruction Manual

TROUBLESHOOTING CHART
PART NO. 70-299 (REV-C)
Low High Pump Motor Reason and remedy
Vacuum Pressure Vacuum Pressure Overheat Overload for problem.
GG G GFilter dirty.
Clean or replace.
GGGMuffler dirty.
Clean or replace.
GGGVacuum line collapsed.
Repair or replace.
GG GRelief valve set too high.
Inspect and adjust.
GG Relief valve set too low.
Inspect and adjust.
GG G GPlugged vacuum/pressure line.
Inspect and repair.
GG Vanes sticking.
Clean or replace.
GG Vanes worn.
Replace.
GG G GForeign material- in pump.
Inspect and clean.
GG G GMotor not wired correctly.
Check wiring diagram and line voltage.
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