16
S&C Instruction Sheet 811-510
Assembling the Loadbuster Loadbreak Tool
Step 25
Install the stationary contact assembly in the inner tube
assembly. Use the
5/32
-inch Allen key to install a new socket
head set screw. Make sure that its point engages the locating
hole in the stationary contact assembly. Tighten the socket
head set screw firmly, but avoid overtightening that may
bend the stationary contact assembly. See Figure 29.
Align the holes
Set screw
Figure 29. Install the stationary contact assembly to the
inner tube assembly.
Step 26
To assemble the inner tube assembly: See Figure 30 and
Figure 31.
(a) Apply a thin coating of silicone oil to the surface of the
inner tube assembly.
(b) Slide the bearing retainer onto the inner tube assembly.
NOTICE
The inner tube seal will not perform properly unless it is
installed with its flared edge pointing toward the station-
ary contact end of the inner tube assembly .
(c) Slide the inner tube seal onto the assembly. If the seal is
difficult to put on the inner tube assembly, expand its
inner diameter somewhat by rotating it against a
thumbnail or other smooth object. Use care to avoid
damaging the seal. The seal material has a “memory”
and will soon return to its original shape. Immediately
place the flared edge of the inner tube seal squarely
against the metal insert on the lower end of the inner
tube assembly. Then, using a slight twisting motion,
work the inner tube seal onto the inner tube assembly,
taking care to avoid damaging or inverting the seal,
especially when sliding the seal past the flat area on the
inner tube assembly.
(d) Slide the bearing onto the inner tube assembly.
Figure 30. Apply a layer of silicone oil.
Bearing
retainer
Inner tube
seal
Stationary
contact
Bearing
Flared end towards
stationary contact end
Inner tube seal detail
Figure 31. Assemble the inner tube assembly. Detail view of
inner seal. Make sure the flared end is pointing toward the
stationary contact end of the inner tube assembly.
