Brookfield BF35 - Manual (Page 21)

Brookfield Engineering Labs., Inc. Page 21 Manual No. M13-10000
If you are replacing only the torsion spring, discard the old spring, and skip to
step 20 to complete the process.
Aluminum Clamp Sleeve
Stop Block
Torsion Spring
Set Screw (Step 6)
Brass Bearing Mount
Dial
Bridge
Set Screw (Step 4)
Set Screws (Step 5)
8. Remove the four screws from the bridge and lay it gently to the right side.
Do not touch the encoder that encircles the flywheel.
9. Loosen the set screw (one turn counter-clockwise) on the bottom of the dial and
pull down on the bob shaft to remove them both.
10. Remove the two screws on the brass bearing mount (upper bearing). Hold the
upper brass bearing mount by the hand for easier access to the retainer ring and
bearing.
Be careful not to damage the pins.
Set Screw
Retainer Clip
Set Screw
Upper Bearing
Brass Bearing Mount
11. The upper bearing is located inside the brass bearing mount. Use the retainer
ring pliers to remove the retainer ring. Push the bearing upwards to remove the
upper bearing from the brass bearing mount.
12. Use surgical gloves to insert a new upper bearing into the brass bearing mount
and replace the retainer ring with the retaining ring pliers.