Brookfield BF35 - Manual (Page 22)

Brookfield Engineering Labs., Inc. Page 22 Manual No. M13-10000
Do not touch the bearing with bare hands. Dirt, oils, and other contaminants
can damage the bearing.
13. Replace the brass bearing mount back onto the two pins and tighten the two
screws.
14. Remove the Splash Guard, loosen the set screw on the lower brass bearing shield
(one turn counter-clockwise), and slide the lower bearing down the bob shaft to
remove all three components.
15. Use surgical gloves to apply a new lower bearing onto the bob shaft.
16. Install the lower brass bearing shield and tighten the set screw. Slide the splash
guard back up the bob until it touches the lower brass bearing shield.
The bearing should be able to free spin for up to two minutes. If it does not,
replace it with a new bearing.
Torsion Spring
Bob Shaft
Splash Guard
Brass Bearing
Mount
Bearing Shield
Lower Bearing
17. Slide the bob shaft up through the upper brass bearing mount. Turn the bob shaft
in the direction that allows the “Flat” located at the top of the bob shaft to be
positioned towards you.
18. Align the bottom set screw on the dial with the “Flat” on the bob shaft and tighten
firmly. Make sure the set screws are perpendicular to the tip of the bob shaft.
The bob shaft should rotate smoothly without any noise.
19. Replace the bridge being careful not to touch, or bend the encoder. Tighten the
four screws.