R11 2x2
27
5. SHIMMING
Variation in components can affect the number of shims necessary to properly pre-load
the bearings and correctly compress the mechanical seal.
Referring to figure 4.0, the distance between the seal mating ring face and the pedestal
flange face is indicated by "C". In a properly shimmed pump, the distance should
measure between 0.864" (21.95 mm) and 0.900" (22.86 mm). The following instructions
are to determine the required number of shims.
WARNING:
Before lifting the pump into the vertical position first remove the lifting eye
and install the swivel hoist. When tightening the swivel hoist ring, torque to 100ft-lbs.
Once the pump is re-assembled and in the horizontal position remove the swivel hoist
and re-install the lifting eye. Reference APPENDIX A Drawing.
5.1. For proper bearing and seal location, dimension "C" (as shown in Figure 4.0) must be controlled.
Use the shimming bar (P/N 060580635) and a depth micrometer to measure the seal height.
The seal height measurement is then subtracted from the number stamped on the measuring
bar. This will give you dimension "C."
5.2. Referring to the shim chart below, find the line in which the measured value "C" falls. Follow the
line across and identify the number of shims required. (The shim chart is based on shims .010"
thick, actual thickness may vary.)
5.3. Tilt the pump from its vertical position to a horizontal position. Remove the capscrews and
bearing cap. Install the required number of shims (as shown in figure 4.0).
5.4. Reassemble the bearing cap and four capscrews and torque to 35 ft. lbs. Be sure the drain port
is downward.
5.5. Recheck by measuring the distance "C" and checking the shim chart to insure that no additional
shims are required.
5.6. Complete assembly per Section 2.7.6.25 - 2.7.6.36.
SHIMMING CHART
SHIMMING CHART
Measured Reading "C"
Number
of Shims
Required
Measured Reading "C"
Number of
Shims
Required
Inches
Millimeters
Inches
Millimeters
.864 - .900
21.95 - 22.86
0
.814 - .823
20.68 - 20.92
5
.854 - .863
21.69 - 21.94
1
.804 - .813
20.42 - 20.67
6
.844 - .853
21.44 - 21.68
2
.794 - .803
20.17 - 20.41
7
.834 - .843
21.18 - 21.43
3
.784 - .793
19.91 - 20.16
8
.824 - .833
20.93 - 21.17
4
Summary of Contents for Roto-Jet R11
Page 1: ...Disassembly Assembly Manual R11 2x2 RJ DA 3 11 19 ...
Page 9: ...R11 2x2 6 2 3 1 Model R11 Dimensional Drawing ...
Page 29: ...R11 2x2 26 Figure 4 0 ...
Page 33: ...R11 2x2 30 7 MAINTENANCE RECORD DATE SERIAL NO MAINTENANCE RECORD BY ...
Page 34: ...R11 2x2 31 8 APPENDIX A When using the swivel hoist use in place of this lifting eye ...
