SKF CMSS 60 - Page 26

Section 3 – Probe installation
3-6
Installation instructions for CMSS 912 Dual Axial Probe Adapter
1. Prepare the mounting surface as
shown in Figure 3-11.
2. Cut threaded extension (Part 2)
Figure 3-12 to desired length,
deburr, and chase the threads with
a tap.
3. Thread probe connector through
threaded extension (2) from small
end and screw probe into extension
to desired length. Lock in place with
lock nut (1).
4. Thread fitting (3) into 1/2”
(12.7 mm) NPT hole in machine
case.
5. Thread assembled unit through
fitting until the probe tip is gapped
at approximately 0.040” (1.0 mm)
or the driver output reads -8 Vdc.
Note: To oil-proof a CMSS 912
Probe Adapter, apply Loc-Tite
pipe thread sealant liberally
to both pipe threads and
machine threads of probe
holder during installation.
This is good for temperatures
from -65 to +300 °F (-18
to +149 °C). Cure time is
48 hours, but this can be
accelerated significantly using
Loc-Tite “Klean N’ Prime” or
Loc-Tite “Locquic Primer NF.”
6. Tighten the jam nut (1) on the
extension when probe is properly
gapped.
7. Install CMSS 912 housing on
machine.
1/2" NPT (2)
C
L
This Area 6" x 6"
Around to Be
Machined Flat
Within 0.010”, and
Finished to Be 125
Micro-Inches
C
L of Shaft Bearing
C
L
2.25”
(57mm)
2.25”
(57mm)
4.50”
(114mm)
2.25”
(57mm)
2.25”
(57mm)
4.50”
(114mm)
Drill and Tap
1/4”-20
Figure 3-12. CMSS 912 Dual Probe installation diagram.
1
2
3
6.62”
(166mm)
1.5”
(38mm)
Working
Range
4.62”
(116mm)
Conduit Hub 3/4”
Fitting Not Furnished
Shaft
Machine Surface
1/2” NPT (2 Places)
Probe (2) Not Included
Figure 3-11. Mounting surface requirements.