The valve studs on pump HP80 must be torqued every 90 days. Failure to follow this procedure may void your warranty and cause serious damage to the pump.
- Remove the acorn nut from the top of the valve stud.
- Use a 6mm Allen wrench to torque the valve stud to 15-17 ft/lbs.
- Reattach the acorn nut and torque to 29-33 ft/lbs.
Note: The valve cover bolts must be kept tight during this procedure.