What is the correct torque specification for the throat seal packing nuts on the pumps?
All pump sizes require the packing nut to be torqued to 25-30 ft-lb (34-41 N•m). Before tightening seals, always follow the Pressure Relief Procedure, as there must be zero pressure on the pumps when adjusting. (Page 42)
From the official Graco Tranzitions XP Proportioner manual, page 42
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