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Instruction Book
IB182023EN March 2016 www.eaton.com
AMH-4.76-VR
Replacement Circuit Breaker
SECTION 3: RECEIVING, HANDLING, AND
STORAGE
Type AMH-4.76 VR-series circuit breakers are subjected to complete
factory production tests and inspection before being packed. They
are shipped in packages designed to provide maximum protection to
the equipment during shipment and storage and at the same time to
provide convenient handling. Accessories such as the maintenance
tool, cell code plate, (if applicable) etc. are shipped with the breaker
(Figure 3.1).
3.1 RECEIVING
Until the breaker is ready to be delivered to the switchgear site
for installation, DO NOT remove it from the shipping crate. If the
breaker is to be placed in storage, maximum protection can be
obtained by keeping it in its crate.
Upon receipt of the equipment, inspect the crates for any signs of
damage or rough handling. Open the crates carefully to avoid any
damage to the contents. Use a nail puller rather than a crow bar
when required.
When opening the crates, be careful that any loose items or
hardware are not discarded with the packing material. Check the
contents of each package against the packing list.
Examine the breaker for any signs of shipping damage such as
broken, missing or loose hardware, damaged or deformed insulation
and other components. File claims immediately with the carrier if
damaged or loss is detected and notify the nearest Eaton’s Electrical
Services & Systems office.
Tools and Accessories
Mainttnanct Tool / Manual Chargt Handlte:
This tool is used
to manually charge the closing spring. One maintenance tool is
provided with each vacuum unit replacement breaker. (Style#
94C9506G01)
Racking Handlte:
The racking handle is used to drive the racking
mechanism which moves the circuit breaker into and out of the cell.
The original OEM racking handle will interface with the VR-Series
replacement breaker racking mechanism and is therefore not
provided as part of the vacuum replacement breaker. A replacement
racking handle may be purchased directly from Eaton. (Style#
5D11330G01)
3.2 HANDLING
WARNING
DO NOT USE ANY LIFTING DEVICE AS A PLATFORM FOR PERFORMING
MAINTENANCE, REPAIR OR ADJUSTMENT OF THE BREAKER OR FOR
OPENING, CLOSING THE CONTACTS OR CHARGING THE SPRINGS. THE
BREAKER MAY SLIP OR FALL CAUSING SEVERE PERSONAL INJURY.
ALWAYS PERFORM MAINTENANCE, REPAIR AND ADJUSTMENTS ON A
WORKBENCH CAPABLE OF SUPPORTING THE BREAKER TYPE.
VR-Series breaker shipping containers are designed to be handled
either by use of an overhead lifting device or by a fork lift truck. If
containers must be skidded for any distance, it is preferable to use
roller conveyors or individual pipe rollers.
Once a breaker has been inspected for shipping damage, it is best
to return it to its original shipping crate until it is ready to be installed
in the Metal-Clad Switchgear.
When the breaker is ready for installation, a lifting harness in
conjunction with an overhead lift or portable floor lift can be used
to move the breaker. If the breaker is to be lifted, position the lifting
device over the breaker and insert the lifting harness hooks into the
breaker side lifting points and secure (lifting straps should have at
least a 500lbs lift capacity over the approximate breaker weight). Be
sure the hooks are firmly attached before lifting the breaker. Stand a
safe distance away from the breaker while lifting and moving.
Figurt 3.1.a. Typical Manual Chargt Handlt
Figurt 3.1.b. Rotary Racking Handlt
Figurt 3.2. Lifting AMH-4.76-VR
