Specifications

BEARING REPLACEMENT Document No. DER05017
Effective Date 25 May 07 Page 11 of 12
b. Remove retaining ring securing seal within seal housing. Remove and discard seal and O-
ring from seal housing.
c. Extract bearing from bearing housing, and discard bearing.
d. Remove retaining ring securing seal within bearing housing, and remove and discard seal.
e. Remove wave spring from solid bowl head shaft.
Cleaning, Inspection, and Repair
1. Clean all components with a suitable cleaner/degreasing agent, and blow dry with filtered
compressed air. Remove any corrosion to facilitate inspection.
2. Inspect bowl head shafts for scratches, nicks, burrs, or deformation that may affect suitability
for returning to service. Blend out any minor surface defects. Replace bowl head if shaft is
obviously deformed or serious flaws are found that render the bowl head unserviceable.
3. Inspect bearing and seal housings for corrosion, distortion, nicks, cracks, burrs, fractures, or
other defects. Repair any minor defects.
4. Check that solid bowl head wave spring has retained its tension. Replace if damaged tension
is insufficient.
5. Replace any component found having damage that cannot be easily repaired. Replace all
seals, O-rings, and bearings.
6. Test fit a new bearing inner race in the bearing housing of both bowl heads. If the bore is
undersize, the outer race will slide easily into the bore. Replace the bearing housing(s) if bore
is found loose.
7. Place all cleaned components in clean plastic bags to prevent contamination.
Installation
Bearing installation is the reverse of removal. Parts must be clean, and the procedure must be
performed in a clean environment to prevent contamination of the new bearings. Be sure to
replace all conveyor bearings as a set. The liquid end thrust bearings are installed first, followed
installation of the solid end bearing.
1. To install the liquid end conveyor bearings, proceed as follows:
a. Insert new seal into liquid end seal housing (Figure 5017-4), and secure with retaining
ring. Install new O-rings in external grooves of seal housing.
b. Place one new thrust bearing on bore of bearing housing and, using a suitable tool, tap
bearing evenly into place against shoulder of bearing housing. Orient second thrust
bearing with part number up to facilitate identification, and install into housing on top of
previous bearing.
c. Install new O-rings into external grooves of seal housing.
d. Position seal housing on bearing housing, and secure with screws. Tighten screws in
accordance with
DER05018.