Blackmer Sliding Vane Pump XB1C

NOTICE: To avoid possible entanglement in moving parts do not lubricate pump bearings, gear reducer or any other parts while the pump is running

NOTICE: If pumps are repainted in the field, ensure that the grease relief fittings (76A) are functioning properly after painting. Do NOT paint them closed. Remove any excess paint from the fittings

Grease relief fittings removed from the bearing covers

Grease applied slowly with a hand gun until it begins to escape from the grease relief fitting port

Grease relief fittings replaced

DO NOT overgrease pump bearings. While it is normal for some grease to escape from the grease tell-tale hole after lubrication, excessive grease on pumps equipped with mechanical seals can cause seal failure

Strainers cleaned regularly to avoid pump starvation

Schedule for strainer cleaning depending on the application and conditions

Sign off on the pump bearing lubrication

NOTICE: Maintenance shall be performed by qualified technicians only. Follow the appropriate procedures and warnings as presented in manual

NOTE: The numbers in parentheses following individual parts indicate reference numbers on the Pump Parts List

Drain and relieve pressure from the pump and system as required

If the pump shaft is protruding through the cylinder, remove the head assembly from the pump. If the pump shaft is protruding through the head, remove the entire pump from the mounting bracket, then remove the head assembly from the pump

Turn the shaft by hand until a vane comes to the top position of the rotor. Remove the vane

Install a new vane, ensuring that the relief groove is facing toward the direction of rotation

Repeat steps 3 and 4 until all vanes have been replaced

Sign off on the vane replacement

NOTICE: Follow all hazard warnings and instructions provided in the “maintenance” section of this manual

Drain and relieve pressure from the pump and system as required

Loosen the coupling and remove the shaft key

Remove the four mounting screws and remove the entire pump assembly from the bracket mount

Remove the bearing cover capscrews, the bearing cover and gasket. Discard the bearing cover gasket

Remove the locknut and lockwasher from the shaft end protruding through the head

Clean the shaft portion protruding through the head thoroughly, making sure the shaft is free of nicks and burrs

Remove the head capscrews and carefully pry the head away from the cylinder

Slide the head off the shaft. The head O-ring, bearing, and mechanical seal will come off with the head assembly. Remove and discard the head O-ring