Allied 300, Technical Manual, Page: 40 / 66

Allied Construction Products, LLC Technical Manual Ho-Pac 300, 300B & 500, 500B
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10.8.1 Bearing Replacement
Bearing service shall be performed in a
properly equipped workshop. Use of a
manual arbor press is recommended.
NOTE: Bearings are interference press fit.
Apply contact pressure to the outer race
only. Do not hammer on the bearing rings.
IMPORTANT
Non-approved parts may cause loss of
performance or damage. Use only genuine
Allied replacement parts to protect total
warranty coverage.
10.8.2 Bearing Removal
CAUTION
Crush hazard. Be careful that
eccentric mass does not fall and
injure hands or fingers.
1. Remove hydraulic hoses from motor.
Properly dispose of any spilled oil as
required by governing regulations.
2. Remove the hydraulic motor.
3. Remove the motor side bearing housing
from the eccentric housing.
4. Remove the eccentric mass.
5. Remove the other bearing housing.
6. With the bearing housing properly
supported, press out bearing. Press only
against the bearing’s inner race.
NOTE : Do not pry out the outer bearing
race if it remains in the housing. Place a
small weld bead, 1/8 inch (3 mm) along the
inside diameter. Allow it to cool, then
remove the outer race.
10.8.3 Bearing Installation
IMPORTANT
Handle new bearings with care to prevent
the grease seal from becoming dislodged.
(300B & 500B models)
1. Clean the bearing housing.
2. Apply a light coating of oil to the
bearing’s outer race.
3. Slowly press bearing into housing.
NOTE: Interference press fit. Press only
against the outer race .
4. Clean the eccentric shaft. Slip
bearing/housing onto shaft.
NOTE :
Close tolerance slip fit.
5. Repeat steps 1-4 with other bearing
/housing.
6. Install the bearings and eccentric in to
the eccentric housing. Install bolts.
7. Install hydraulic motor and bolts.
IMPORTANT
Refer to Table 10.1 for bolt torque. Follow
special assembly instructions noted in
Section 10.12.
8. Install hydraulic hoses.
10.9 Spring Mounts - Replacement
CAUTION
Crush hazard. Do not place
hands or fingers between
mounting frame and
compaction plate during
removal of spring mounts.
Ensure all loads are adequately
supported before performing
any service work.