Gast DAA Series - Manual (Page 8)

8
Low High Pump Motor Excess Reason and remedy
Vacuum Pressure Vacuum Pressure Overheat Overload Noise for problem.
• • At Pump • • Filter dirty. Clean or replace.
• • At pump • • Muffler dirty. Clean or replace.
• • Valves dirty or valves bent.
Clean or replace.
• • Worn piston rings.
Repair or replace.
• • • Relief valve set too high.
Inspect and adjust.
• • Relief valve set too low.
Inspect and adjust.
• • At pump At pump • • Plugged vacuum/pressure line.
Inspect and repair.
• At pump Collapsed vacuum line.
Inspect and repair.
• • Low voltage, wonʼt start.
Check power source.
• • • Voltage wrong.
Check power source.
• • • Worn rings/piston hitting cylinder.
Replace.
• • Cylinder misadjustment.
Realign.
• • Leaky hose or check valve.
Replace.
• • • • • Dirt or liquid on top of piston.
Inspect and clean.
• • • • Motor not wired correctly.
Check wiring diagram/line voltage.
• • • Blown head gasket.
Replace.
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