(3) Lift screen assembly from the vibrator unit.
(2) Install the vibrating screen and screen
b. Screen Box Disassembly.
screen box assembly in the numerical sequence as
68. Vibrator Unit
c. Cleansing, Inspection, from Repair
Whenever the cause of bearing failure
(1) Clean all parts with an approved cleaning
is determined to be on one side of the
solvent and dry thoroughly.
vibrator unit only, the bearing can be
(2) Inspect for cracks, breaks, wear, or
extensive damage. Repair clacks and breaks by welding
vibrator unit from the screen box. For
if possible. Replace defective parts as necessary.
complete overhaul, the safest method
is to remove the vibrator unit .
(1) Reassemble the screen box assembly in
the reverse of the numerical sequence as illustrated on
a. Bearing Removal and Installation (Drive Side).
(1) Drive Shaft Bearing Removal.
Reassemble leaf or support springs
(d) Attach puller ring (Special Tool 1376-
(2) Adjust the coil springs to that the
036-02) to inner race of the drive shaft bearing (fig. 40-5).
compression is the same on springs opposite each other
(e) Attach bearing puller plate to puller
Never use an acetylene torch to heat
check far equal distance between base
will cause the housing bores to lose
and box on all four corners to make
sure the box is square in the base
make sure the box is square in the
(f) Lift the drive shaft slightly and
(g) Inspect seals (34 and 37) and seal
(49) that is bolted to the inside of housing (45). Replace
and disassemble the screen hopper
f. Cleaning, Inspection and Repair.
(h) Inspect the bearing housing bores for
ticks, burrs, out-of-round, or oversize. If bearing housing
(1) (glean the screen hopper with live steam or
is defective, it must be replaced.
an approved cleaning solvent.
(2) Drive Shaft Bearing Installation.
(2) Inspect the hopper for excessive near or
damage. Repair or replace a damage a damage or
(a) Clean all parts with an approved
cleaning solvent and dry thoroughly.
(3) Inspect hopper liner for wear or damage.
(b) Install inner rotating seal (37, fig. 40-
Replace worn or damaged liners as necessary.
3) onto shaft (50) until it seals firmly against the eccentric
part of the shaft.
(4) Inspect the flop gate and flop gate handle
for a bent or damaged condition. Repair or replace
Do not use oil or lubricant in the
g. Screen Hopper Reassembly. Refer to figure 40--
grooves of the seals as lubricant rill
4 and reassemble the screen hopper assembly.
prevent proper seating of the seals.
(c) Remove plug (1) and drain lubricant
unit to the screen box assembly.
from gear case.
housings, (44 and 45, fig, 40-3) to the screen base with
capscrews and nuts (38 and 40).