A##C & A##S
A SERIES ELASTOMERIC COUPLINGS
Fitting & Maintenance Instructions
1
Foreword
These instructions are provided to familiarize the user with the coupling and its designated use. These instructions must be read and applied whenever
work is carried out on the coupling and must be kept available for future reference.
ATTENTION
These instructions are for the fitting, operation and maintenance of the coupling as used in rotating equipment and will help to avoid
danger and increase reliability. The information required may change with other types of equipment or installation arrangements. These
instructions must be read in conjunction with the instruction manuals for both the driver and driven machinery.
If the coupling is to be used for an application other than that originally intended or outside the recommended performance limits, John Crane must be
contacted before its installation and use.
Any warranty may be affected by improper handling, installation or use of this coupling. Contact the company for information as to exclusive product
warranty and limitations of liability.
If questions or problems arise, contact your local John Crane sales/service engineer or the original equipment manufacturer as appropriate.
ATTENTION
John Crane couplings are precision products and must be handled appropriately. Take particular care to avoid damage to pilots, mating
faces, hub bores, keyways and insert.
These instructions are written for standard catalog products, generally designed in accordance with the drawing shown.
Safety Instructions
The following designations are used in the installation instructions to highlight instructions of particular importance.
IMPORTANT
is used for items of particular concern when using the coupling.
ATTENTION
where there is an obligation or prohibition concerning the avoidance of risk.
where there is an obligation or prohibition concerning harm to people or damage to the equipment.
0
90
180
E
X1
X2
Z = X1-X2
Y
FIGURE 1A. Close-coupled Option A##C
FIGURE 1B. Spacer Option A##S
0
90
180
E
X1
X2
Z = X1-X2
Y
1
– Flexible insert
2
– Close-coupled hub
3
– Retaining ring
4
– Retainer set screw
5
– Spacer (S option)
6
– Hub (S option)
7
– Stripper bolt (S option)
