PASCOR ATLANTIC DR7, Manual, Page: 7 / 11

6 | P a g e
Step 10—Install Vertical Operating Pipe
For directly connected switch operating
mechanism, attach vertical operating pipe to switch
rotor bearing shaft. Or, In the case of offset-
torsional operating mechanism, attach vertical
operating pipe to offset rotor bearing shaft, with
coupling and pins supplied. For reference, see Figs.
7 and 8. At this point, check drawings for accessory
equipment (auxiliary switches, mechanical
interlocks, position indicators, ground straps, etc.)
which mounts on vertical operating pipe and install
before continuing installation. The vertical pipe is
predrilled at one end for a 5/8” diameter pin, two of
which are shipped, together with a coupling in a
bag, for connection to the offset bearing shaft (or
on the pole unit rotor bearing in the case of direct
connection switches)
Step 11—Install Pipe Splice and Guide Plate
When the length of the vertical operating
pipe exceeds 23 feet, a pipe splice and a
guide plate are furnished and should be
installed as shown in Fig. 8. The pipe spice
and both pieces of pipe are pre-drilled to
receive the 5/8” diameter pins. The guide
plate should not be solidly mounted until
after the vertical pipe has been completely
installed; then bolts holding the guide plate
on the structure should be tightened in order
that the holes In the guide plate line up with
the normal position of pipe. This assures that
there is no binding.
Step 12—Install Operating Mechanism
Two types of manual operating mechanisms
• Swing-handle operator
• Worm gear mechanism
Fig. 10 Geared Mechanism
Fig. 11 MO-10 Motor Operator
Fig 9. Operating Handle Lock Plate