TM 5-3820-233-35/1
Section IV. DELIVERY CONVEYOR
g. Snub Roll Idler and Tail Bearings Dis-
60. General
assembly. Disassemble the snub roll idler and
The primary delivery conveyor, the only con-
tail bearing assemblies as illustrated on figure
veyor on the primary plant, delivers aggregate
33-6.
from the jaw crusher to the overhead conveyor
h. Tail Pulley Bearing Assembly. Disas-
of the secondary crushing and screening plant
semble the tail pulley bearing assembly (100,
for further processing.
i. Cleaning, Inspection, and Repair
(1) Clean all parts with an approved
a. Remove the delivery conveyor (para 25).
cleaning solvent and dry thoroughly.
(2) Inspect pulleys for dents, cracks and
b. Disassembly. Disassemble the delivery
other damage. Repair or replace a damaged
conveyor in the numerical sequence as illus-
pulley.
trated on figure 33-l.
(3) Inspect bearings for scoring, pitting,
Note. The front support tie (158) front supports
and binding. Replace a defective bearing.
(162 and 163), and center support (153) are attached
to the truck frame.
(4) Inspect skirtboards and flashing for
wear or damage. Replace defective skirtboards
c. Head Pulley Bearing Disassembly. Dis-
and flashing.
assemble the head pulley bearing assembly
(5) Inspect conveyor belts for wear and
(18, fig. 33-l) as illustrated on figure 33-2.
fraying. Replace a defective belt (Operator's
d. Trough Roll Disassembly
Manual).
(1) Disassemble the trough roll assem-
(6) Inspect trough, return, and impact
bly (65, fig. 33-l) in the numerical sequence
roll assemblies to make sure they turn freely.
as illustrated on figure 33-3.
Replace defective component parts or the
whole assembly as required.
(Located in back of manual)
(7) Inspect the hopper for serious dam-
(2) To remove bearings (15 and 19, fig.
age. Repair or replace a defective hopper.
33-2), remove nut (13 and 14) from both
(8) Inspect the hopper liners for wear
ends of roll and shaft assembly. Tap lightly
or damage. Replace hopper liners as necessary.
on one end of the shaft until bearing (15),
(9) Inspect all parts for wear or damage,
O-ring (16), washer (17), snap ring (18),
and replace or repair defective parts.
and shaft (23) are free of the roll shell. In-
j. Tail Pulley Bearing Reassembly. Reas-
sert a suitable pusher tool in end of roll shell
semble the tail pulley bearing as illustrated
opposite bearing (19) and remove the bear-
on figure 33-7.
ing.
k. Snub-Roll Idler and Tail Bearing Re-
e. Return Roll Disassembly. Disassemble
assembly. Reassemble the snub roll idler and
the return roll assembly (71, fig. 33-l) in
tail bearing assemblies as illustrated on fig-
the numerical sequence as illustrated on fig-
ure 33-6.
ure 33-4. Remove bearings (5 and 9, fig. 33-
l. Impact Roll Reassembly. Reassemble the
impact roll assembly in the reverse of the nu-
removal (steps d. above).
merical sequence as illustrated on figure 33-5.
f. Impact Roll Disassembly. Disassemble
n. Return Roll Reassembly. Reassemble the
impact roll assembly (76, fig. 33-l) in the
return roll assembly in the reverse of the nu-
numerical sequence as illustrated on figure
merical sequence as illustrated on figure 33-4.
33-5.
o. Trough Roll Reassembly. Reassemble the
Note. The snub roll idler and tail bearing assem-
trough roll assembly in the reverse of the nu-
blies (88 and 94, fig. 33-l) are similar in construc-
tion and maintenance procedures.
merical sequence as illustrated on figure 33-3.
