Patent No. 6,766,028 - OFI Testing Equipment, Inc.
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
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6. To replace the lower main shaft bearing, loosen the two set screws on the
side of the sprocket. The sprocket and the bearing may then be removed
from the main shaft.
7. Replace the lower bearing and sprocket, tighten the set screws, and
replace the assembly inside the main housing. Make sure the belt fits
around the teeth in the sprocket.
8. Replace the split ring on top of the main shaft bearing. It is easier to
replace the split ring if upward pressure is applied to the main shaft
assembly from below.
9. Again make sure the belt fits around the sprocket teeth, and then push
the motor toward the back of the viscometer. This will tighten the
belt. Turn the main shaft by hand to make sure the belt and main shaft
assembly are turning freely. Tighten the screws on the motor.
10. Reassemble the viscometer. Refer to steps 19 - 26 on page 43.
11. Adjust the P value (see page 49 for instructions). Then recalibrate the
viscometer (see page 14).
Split Ring
Groove
Gear
(#130-76-23)
Lower Main
Bearing
(#130-76-04)
Rotor Tube
(#130-76-22)
Split Ring
(#130-76-05)