The fluid cylinder (34) is removed to inspect for internal damage or to be refurbished.

 

To make service easier, it is suggested that several gallons of clean water be pumped through the M14 before any service procedures that involve fluid end components are started. This action will remove a significant portion of contaminants left in the fluid cylinder by the normal pumpage and improve the ability to work with the parts or spot potential problem areas.

 

Bleed off all pressure inside pump fluid end before starting any service work. Shut the valve on the inlet piping if provided to prevent flow of liquid from the source into the pump during service. Check to insure that the power is locked out.

 

Unbolt the plunger clamps (14) and remove them from the plungers (42) and plunger rods (6). Slide all of the plungers forward as far as possible.

 

Disconnect the suction and discharge piping.

 

Remove the lock nuts (50) holding the fluid cylinder assembly on to the power frame (1). Support the weight of the fluid cylinder assembly and slide the assembly away from the power frame (1).

 

Installation will be the reverse of this procedure. Torque all fasteners as outlined in the Fastener Torque Requirements section of this manual. Please note that if the lock nuts (50) on the fluid cylinder studs (47) are not adequately torqued, a failure is highly likely.

Please click on the following graphic for a larger view.