Gasboy XU2A - Manual (Page 17)

MDE-4320 Gasboy UHF Pump, Blackmer® XU2A Rebuild Kit Installation Manual • June 2004 Page 17
Pump Maintenance
Greasing Procedure:
1 Remove the grease relief fittings (76A) from the bearing covers (27, 27A).
2 Slowly apply grease with a hand gun until the grease begins to escape from the grease relief
fitting port. Discard excess grease in accordance with the proper codes and regulations.
3 Replace the grease relief fittings (76A).
Do not over grease pump bearings. While it is normal for some grease to escape from the grease
tell-tail hole after lubrication, excessive grease on pumps equipped with mechanical seals can
cause seal failure. The tell-tall hole is located in the head between the bearing and the seal.
Vane Replacement
Note: Follow all hazard warnings and instructions provided in the "Pump Maintenance"
section of this manual.
1 Drain the pump and system as required.
2 Remove the head assembly from the outboard (non-driven) side of the pump according to
steps 5 - 8 in the "Pump Disassembly" section of this manual.
3 Turn the shaft by hand until a van (14) comes to the top (12 o’clock) position of the rotor.
Remove the vane.
4 Install a new van, ensuring that the rounded edge is up, and the relief grooves are facing
towards the direction of rotation. See
Figure 2:Vane Installation .
5 Repeat steps 2 and 3 until all vanes have been replaced.
6 Reassemble the pump according to steps 2 - 6 and 10 - 13 of the "Pump Assembly" section of
this manual.
Figure 2: Vane Installation
Note: Follow all hazard Warnings and Instructions provided in the "Pump Maintenance"
RELIEF GROOVES FACE IN
DIRECTION OF ROTATION
ROUNDED EDGE OUT