Installation; General; Receiving; Handling - GE CR194 Installation Instructions Manual

INSTALLATION

General

This section con tains information on receiving,
handling, disassembly, motor cable termination,
groun ding and reassembly to make the equipment
ready for operation.

Receiving

CR194 two-high vacuum Limitamp® controllers are
rigid, self supporting steel enclosures that require
no floor sills. They are placed on skids and shipped in
an upright position and, when received, should be
kep t upright.
Some components such as top-mounted potential
transformers may be shipped separately. These
components are iden tified by a catalog number
coinciding with that of the section on which they are
to be mounted.
Plastic film wrap is normally used for domestic
packing, with the steel enclosure sections bolted to
a wooden skid. Mter receiving, the packing may be
removed and the equipment handled on the
wooden skid.
The equipment should be inspected for damage
that may have occurred during shipment, and any
such damage should be noted to the carrier if a claim
is to be made.

Handling

It is always preferable to handle Limitamp® con trollers
by the lifting means provided. A single section should
be lifted by connecting directly to the two lifting lugs
on top. However, an equal izing bar should be used for
a lineup as shown in Figure 16. A lineup should be
supported at as many points as possible.
If there is not enough head room to lift the panel
by its lifting means, then a track jack can be used. The
controller can be raised by placing a track jack
under the shipping skid. Rollers can then be placed
under the skid for rolling the equipment to its final
location. The panel should then be raised by its lifting
means, the shipping skid removed, and the panel
set into place.
The use of fork lift trucks is not recommended, since
the forks may damage the enclosure or interior parts
of the equipment, and the equipment becomes very
unstable when lifted from the bottom. If no other
method of handling is available, the forks must go un­
der the skid bo ttom to avoid damaging the equipment,
and the assembly lifted only slightly to allow the skid
to be slid along a flat, level surface.

Placement of Enclosure

It is essen tial that the controller be securely fastened in
an upright position on a level surface to allow proper
functioning of the internal devices. Access will be im­
proved if the controller is located at floor level with
CR194 Two-High Vacuum Limitamp® Control
Figure 16. Recommended method of lifting a
vacuum Limitamp• line-up.
Note that the line-up is suspended from an equalizing bar
plenty of room allowed for doors to swing fully open
shown on the drawings as supplied with the equipment.
Mter the controller has been placed in position,
floor mounting anchor bolts may be installed and
tigh tened. The location for these bolts for the CR194
two-high is shown in Figure 50, and on the Outline
Details section of the drawings furnished with
the equipment. Use IA!-inch bolts as indicated
in Figure 50.

Disassembly

Mter the equipment has been set in place where it is
to be perman en tly connected, some internal disassem­
bly is required to make the necessary horizontal main
bus and ground bus connections. Further disassembly
is required if it is desired to view the horizon tal-to-ver­
tical bus connection. Disassembly should be done in a
definite sequence as indicated below.
NOTE:
Other than the removal of external cover plates as re­
quired, and/ or the rearrangement of the incoming motor
cable barriers if required, disassembly is not required to run
motor cable and control wire into the enclosure. Under nor­
mal circumstances, disassembly need only be done to the ex­
tent necessary to make the horizontal bus splice connection.
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