7.
Lubricate the O-ring on the outside of the new stationary seat.
Lubricate with petroleum or silicone grease. Install the stationary
portion into the seal holder cavity. Make sure the stationary portion is
fully seated. Lightly lubricate the ground surface of the stationary
seat with grease or oil.
8.
Examine the rubber O-ring on the mechanical seal holder and, if the
O-ring is damaged, replace it with a new one. A new O-ring is included
with the factory-supplied mechanical seal replacement kit. Lubricate
with grease before installing.
9.
Place the mechanical seal holder containing the new stationary seat
onto the pump shaft and slide it down the shaft until fully engaged
with the inlet casting.
CAUTION:
Care must be taken not to damage the new stationary
seat when sliding the assembly over the pump shaft.
10.
Install the liquid end assembly onto the bearing frame (Section 6.2.2).
6.4
High-Pressure Mechanical Seal Replacement
High-pressure mechanical seals have the same basic design as standard mechanical
seals. Replace them using the same procedure as denoted in Section 6.3 (Mechanical
Seal Replacement).
6.5
Bearing Frame Maintenance on E-Bearing Frame Tonkaflo Pumps
6.5.1
Disassembly of Pumps with Type E-Bearing Frame
STEPS
1.
Remove the liquid end assembly (Section 6.2.1, Removal of Liquid End
Assembly).
2.
Drain the oil from the bearing frame by removing the oil drain plug on
the lower portion of the bearing frame and then remove the bearing
frame from the bedplate or other mounting.
3.
Bearing frame overhaul. Refer to Figure 6.10 (Bearing Frame
Overhaul) for the construction of Type E-Bearing frame.
STEPS
1.
Remove the three bolts and lock washers that fasten the bearing
frame cap to the motor side of the bearing frame. Separate the cap
from the bearing frame.
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