Maintenance
Waukesha Cherry-Burrell
Page 60
95-03057
11/2012
Assembly of Secondary Seal Body (For Double
Mechanical Seal Only)
The secondary seal body has one O-ring that holds the insert
stationary in the body.
To install the insert in the seal body:
1.
Place O-ring in body (no lubrication).
2.
Push insert down evenly with both hands until it bottoms out.
3.
Place O-ring in seal body (lubrication should be applied to
this O-ring).
Seal Assembly Installation on Shaft
After the head insert and the body insert are installed, the
remaining components are installed as follows:
1.
The primary seal body is held in place on the mutator shaft by
two seal drive pins. Each one should be 5/32 inches (+/-
0.015") above the stub shaft surface. The secondary seal
body is held in place by one seal drive pin. It should be 3/32
inch (+/-0.015") above the stub shaft surface. It is extremely
important that these dimensions be maintained. If the pins
are too high, the seal will jam; if they are too low, the body will
rotate. See Figure 67 and Figure 70.
2.
Place wavy washer spring (See Figure 67, Item A) on shaft.
3.
Place seal body (Figure 68) or one piece seal on shaft,
aligning slots with seal drive pins.
4.
Install "keeper" O-ring (See Figure 69, Item E) on shaft to
keep rotating parts assembled.
5.
Inspect seal to insure that it moves freely with spring and that
drive pins keep it stationary with respect to the mutator shaft.
6.
Assemble Secondary Seal Wavy Washer on shaft, if required
(See Figure 70).
Figure 67 - Install Wavy Spring
Figure 68 - Install Seal Body
Figure 69 - Install Keeper O-ring
