WIM-HB-000_A
Page
13
of
21
6.3.10
Place cover plate over shaft and seat on top of bearing. Do not secure.
6.3.11
Calculate back side shim stack as follows:
6.3.11.1
Raise the rotor- shaft assembly inside the housing until the rotor face contacts the
above stator face and travel stops. Record indicator reading (
DISTANCE #1 ___
__).
Release any pull-on shaft and rest brake again on stands.
6.3.11.2
Temporarily bolt cover plate to bearing adapter insert eye bolt and position dial
indicator again.
6.3.11.3
Raise rotor shaft assembly until bearing contacts cover plate and travel stops. Record
indicated reading. (
DISTANCE #2 __
___). Release any pull-on shaft and rest brake again
on stands.
6.3.11.4
Divide
DISTANCE #1
by 2, then subtract
DISTANCE #2
, the result is the total shim
thickness.
6.3.12
Combine plastic shims and place an equal amount to the calculated value between the bearing
adapter and cover plate.
6.3.13
Rotate cover plate so bearing grease Zerk at edge of cover plate is aligned with 2-inch NPT outlet at
top of brake.
6.3.14
Pack the bearing by filling ½ of bore area with grease (Synxtreme HD-2/220) before installing
bearing. Wipe off excess grease after installing the bearing.
6.3.15
Fasten cover plate with socket head cap screws.
6.3.16
Turn brake over with unassembled side upward.
6.3.17
Repeat Steps 6.3.1 thru 6.3.5 for drive side bearing assembly.
6.3.18
Using feeler gauges measure the gap between the bearing adapter and cover plate.
DISTANCE #3 _____
6.3.19
To this measured value, add .005” to .007” for bearing end play then combine plastic shims and
place the total number between the bearing adapter and cover plate.
6.3.20
Drive side stator/rotor shim spacing calculation and record.
DISTANCE #3 _____ (+ .005/.007) = ______ DRIVE SIDE SHIM STACK
6.3.21
Rotate cover plate so bearing grease Zerk at edge of cover plate is aligned with 2-inch NPT outlet at
top of brake. Fasten cover plate with Socket head cap screws.
6.3.22
Check bearing end play by hammering on end of shaft with rubber hammer, then install dial
indicator and eye bolt in end of shaft and lift to record distance.
6.3.23
Bearing end play - distance = _____
6.3.24
Remove vent plugs & fill with grease (Synxtreme HD-2/220) until excess grease is seen escaping
from bearing grease relief and from seal weep holes.
6.3.25
Install plugs, grease Zerks, vents.
6.3.26
Pressure water test unit at 50 PSI for 30 minutes.
