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Troubleshooting
PROBLEM
CAUSE
SOLUTION
Fluid in exhaust air. | Diaphragm ruptured. | Replace. See pages |
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| Loose fluid side diaphragm plate | Tighten or replace. See pages |
| (105). | |
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Pump exhausts excessive air at | Worn air valve block (7), | Inspect; replace. See pages |
stall. | plate (8), pilot block (18), |
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| (10), or pilot pin |
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| Worn shaft seals (402). | Replace. See pages |
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Pump leaks air externally. | Air valve cover (2) or air valve cover | Tighten screws. See page 17. |
| screws (3) are loose. |
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| Air valve gasket (4) or air cover | Inspect; replace. See pages |
| gasket (22) is damaged. | |
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| Air cover screws (25) are loose. | Tighten screws. See pages |
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Pump leaks fluid externally from ball | Loose manifolds (102, 103), dam- | Tighten manifold bolts (106 and |
check valves. | aged seal between manifold and | 112) or replace seats (201) or |
| seat (201), damaged | |
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