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ariel37Aug 13, 2025
Why is my Esco 10107 Power Tool pump not building maximum pressure and leaking through the exhaust muffler?
- SsarafosterAug 13, 2025
If your Esco Power Tool's pump extends the ram but doesn't reach maximum pressure, and there's visible leakage through the exhaust muffler, examine the piston sub-assembly. You may need to replace the copper gasket and reassemble it vertically, or replace the piston packing.