John Crane A Series, Инструкции по установке и обслуживанию

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A##C & A##S
A SERIES ELASTOMERIC COUPLINGS
Fitting & Maintenance Instructions
3
Shaft Alignment
Because the fitting of coupling components might require one machine to be moved, shaft alignment must be done during assembly of the coupling,
when indicated.
Align the center lines of the driving and driven machine shafts as follows:
•
Move the equipment into position
•
Check for any soft foot and correct before commencing alignment.
Your local John Crane representative can offer alignment equipment. Generally, shaft alignment should be within one quarter of the maximum allowable
misalignments specified in Table 2. The following procedures are an alternate method to obtain the alignment requirements.
Radial or offset
Align the shafts so that a straight edge rests squarely and parallel with the lugs on each close-coupled hub (or close-coupled hub and spacer). Check
with feeler gauges insuring that any clearance does not exceed the offset limits specified in Table 2.
Axial and angular
Using a spacer bar and feeler gauge, measure the clearance between the hubs at 0, 90, 180 and 270 degrees. The difference in measurements must not
exceed values given for angular tolerance below. The average of the readings should be within the between lugs dimension 'E' as specified in Table 2.
As a further check, at the minimum gap location, install the insert and check the clearance between the insert and the hub; it should be approximately
the axial value given in Table 2.
FIGURE 3A. Check For Axial Alignment FIGURE 3B. Check For Angular Alignment
Tighten foundation bolts and recheck alignment. Equipment should be doweled after alignment.
TABLE 2. Maximum Allowable Misalignment
A00C
A01C
A01S A02C
A02S A03C
A03S A04C
A04S A05C
A05S A06C
A06S
A07C A08C
Between Lugs
(E)
mm
1.3 1.3 1.3 2.8 2.8 2.8 2.8 2.8 2.8
1.8 1.8 1.8 3.3 3.3 3.3 3.3 3.3 3.3
in
0.05 0.05 0.05 0.11 0.11 0.11 0.11 0.11 0.11
0.07 0.07 0.07 0.13 0.13 0.13 0.13 0.13 0.13
Axial
mm 0.5 1.0 1.0 1.5 1.5 2.0 2.0 2.0 2.0
in 0.02 0.04 0.04 0.058 0.058 0.078 0.078 0.078 0.078
Offset (Y)
mm 0.5 1.0 1.0 1.0 1.5 1.5 1.5 1.5 1.5
in 0.02 0.04 0.04 0.04 0.058 0.058 0.058 0.058 0.058
Angular (Z)
mm 1.8 2.3 3.0 4.0 3.4 4.3 5.3 4.6 5.6
in 0.071 0.089 0.118 0.159 0.134 0.169 0.208 0.183 0.223
0
90
180
E
X1
X2
Z = X1-X2
Y