Specifications

www.adamselevator.com • Int'l ([phone] • Canada: 800-268-5392
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Adams Safety Products
PD is the plunger diameter.
For this survey it must be measured to the thousandths using a decimal diameter tape.
BSD is the buffer spring diameter.
UFD is the diameter of the upper fl ange section of the head, if it is a stepped fl ange style head.
FD is the diameter of the widest fl ange section of the head, if it is a fl ange style head.
CD is the diameter of the cylinder or stuffi ng box at the top of the head.
BN is the number of Buffer Springs. Please provide a sketch of unusual buffer assemblies and return with survey.
RB is runby, a measurement from the top of the uncompressed buffer springs to the strike plates when the car is fl oor level.
BS is the buffer stroke and should be stamped on the buffer stand data tag, if not, measure the spring gaps and add.
SD is the strike distance between, from lowest point on the platen to the highest projection on the top of the head, when
the car is fl oor level at the bottom fl oor.
BB is the distance between buffers.
CHF is the distance from the highest point of the cylinder head to the top of the footer channel.
CHC is the distance from the highest point of the cylinder head, to the (concrete) pit fl oor.
Please note items below that may have cost ramifi cations:
1: The distance from the pit to the machine room, the LifeJacket requires two 4 Conductor shielded wires and three 18G
wires run to the pit from the LifeJacket Controller in the machine room, so allow wiring time.
2: If there is not a tapped hole in the cylinder you will have to add one. A drill and tap is provided. Takes about 1/2 hour.
3: The type of jack packing, you must replace it before installation. Extra time is saved later for repacks if it is done now.
4: If the buffers need rework, i.e. moving or shortening. The LifeJacket’s dimensions are 15.75” x 21”. If the BB dimension
is less than 15.75”, they will need to be moved.
5: If the pit fl oods; NEMA 3R conduit on the LifeJacket is provided, but not for the pit wiring, parts costs must be added.
6: The LifeJacket™ requires 6 inches of space. If your SD dimension is greater than 6 inches + the required RB + code
required, BS no variance will be necessary.
7: If buffers are multi-springed, please provide a sketch of the buffers with dimensions and return with the survey.
Additional strike extension kits may be required.
8: Local jurisdictional authorities may charge a fee for a permit, variance and/or inspection where required. Notifi cation of
Code concerns will be sent after survey is processed along with an elevation drawing of the pit dimensions after the Life-
Jacket is installed.
LifeJacket
™
Ordering Survey/Non OTIS
CHC
CHF