Application Assistance 1.800.234.8731 (847.662.6633)
Page 3
STEP 6: SLIDE ENCODER ON SHAFT
Carefully slide the encoder all the way down until the tether rests on
the motor face without any stress on the tether. Do not tighten the shaft
clamp on the encoder yet
STEP 7A: SECURE TETHER TO MOUNTING FACE (MOTOR MOUN
FLAT STEEL WASHER
FLAT NYLON WASHER
FLANGED NYLON WASHER
FLAT STEEL
WASHER
HEX BOLT
MOUNTING HOLE
MOUNTING FACE OF MOTOR
BACK COVER SCREWS
Rotate the tether arm until it is at the correct orientation and is aligned
with the mounting holes on the the motor or equipment. Install one
steel washer on both sides of the nylon washer. Refer figure above.
Fasten the tether arm to the motor or machine housing using the
supplied 3/8” bolt (4.5” C-face applications) or 1/2” bolt (8.5” C-face
applications). Ensure that there is no stress or flexing of the tether arm
when secured.
STEP 7B: SECURE TETHER TO MOUNTING FACE (FAN COVER
MOUNT)
T-BOLT
JAM NUT
STEEL WASHERS
NYLON WASHERS
FAN COVER (MOTOR)
TETHER ARM
INSERTED T-BOLT POSITION
T-BOLT AFTER 1/4 TURN
Slide and insert the T-bolt as shown in the figure into the fan cover. Use
the supplied insulating hardware and washers as shown. Tighten the
jamnut to firmly secure the tether.
STEP 8: TIGHTEN ENCODER CLAMP ONTO MATING SHAFT
Check to make sure that the tether is still in its "unstressed" condition.
Adjust position of encoder on shaft if necessary and then tighten the
shaft clamp on the encoder. Tighten clamp to stated torque value
provided on encoder datasheet (50-55 in-lbs.).
NOTE: ENCODER MODELS WITH SPLIT CLAMPS HAVE TWO SCREWS TO
TIGHTEN DOWN. PLEASE ENSURE THAT BOTH SCREWS ON THE CLAMP
ARE TIGHTENED DOWN SECURELY. YOU MAY HAVE TO ROTATE THE
SHAFT TO TIGHTEN BOTH SCREWS DOWN.
STEP 9: GOOD INSTALLATION CHECK POINT
1.75
44,5
[
]
.67
16.9
[
]
.20
5.1
[
]
MAXIMUM
SHAFT PROTRUSION
FROM MOUNTING FACE
FOR USE OF END CAP
2.60
66
[ ]
TYPICAL CLEARANCES
FROM MOUNTING FACE
RECOMMENDED 1.60" OR LONGER
MATING SHAFT ENGAGEMENT;
MINIMUM 1.25" REQUIRED
CHECK WOBBLE
ON THIS FACE
Follow the 3 step installation check to ensure a good installation thus
far. Refer to figure above for key reference dimensions
A. Check clearances from mounting face.
Ensure you have a
minimum clearance of 1/16" between the encoder shaft and any non-
rotating surface closest to the encoder shaft
B. Check tether installation.
Make sure that the tether is unstressed.
There should be no visible bending or deflection on any surface of the
tether. Visible tether deflections should be corrected immediately. If the
tether is bent or distorted, DO NOT USE, and call the factory for a
replacement tether. Tether installation is critical to the long life of the
bearings and improper tether installation will lead to excessive bearing
loads and encoder failure.
C. Check wobble of encoder housing.
Turn the shaft by hand and
make sure that the shaft turns freely and does not produce excessive
runout/wobble of the encoder. Most encoder installations will have
wobble arising from shaft tolerances. Measure the wobble on the
visible back face of the encoder. A wobble of less than 0.007" TIR will
not have any adverse effect on encoder performance. In general, the
lower the TIR of runout, the better.
STEP 10: BASKET GUARD INSTALLATION (optional)
GUARD
ENSURE
CLEARANCE
HERE
ENSURE
CLEARANCE HERE
After installation of the encoder place the accessory cover over the
encoder with the large opening over the connector or cable and shorter
opening positioned over the tether. Ensure the cover is fully seated on
the motor face and secure with bolts and washers provided. When
mounting to a fan cover instead of a 56C face cover, center cover and
drill 3 mounting holes(0.17") in diameter. Then use the 3 #10-24 self
tapping screws and washers provided. Install the warning label in the
most conspicious position. Snap guard is to be used as shown (use if
required).
