10
Z-Series Coro-Vane
®
Seal Replacement Instructions
Step 5
Seal retainer and carbon installation
Clean the pump and apply a generous amount of light oil.
Install the new seal assembly by aligning the seal retainer
slot with the seal drive pin on the shaft.
Step 6
Mechanical seal installation
Install the new case O-ring onto the head.
Apply a generous amount of light oil to each seal face and
carefully install the head assembly over the pump shaft.
Step 7
Completing installation
Torque the head bolts in a crossing pattern. There is no
need to disassemble or re-shim the bearing caps. Repeat
all of the above steps when replacing the seal assembly on
the opposite side.
Step 8
Lubrication & re-pressurizing
Note: Both sides of the pump are identical; duplicate
procedure to change the seal on the opposite side.
Lubrication
Regrease the bearing after thoroughly cleaning the grease
opening and fittings. If dirt is forced into the bearings, early
failure will result.
Special relief fittings have been provided to help prevent
over-greasing the bearings. Excessive grease may drip out
after lubrication. Over-greasing can damage the pump
bearings and cause seal leaks.
Use only a recommended ball bearing grease. If you use a
hand grease gun, put the grease in slowly and stop as soon
as the relief fitting opens.
Grease the U-joints and the spline of the drive shaft when
greasing the pump.
Re-pressurize
For best results, slowly pressurize with vapor pressure.
Please note: If you pressurize with liquid, it will sometimes
refrigerate even though it enters the pump slowly. As a
result, the seal elastomers will not seal properly thereby
causing them to leak.
Summary of Contents for 3193-X1
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