S e c t i o n I I . RECI P R O C A T I N G FEEDER GEAR REDU C E R ASSEM B L Y
Se
b. Inspection and Repair.
121. General
(1) Inspect the bearings for pitted, scored,
The reciprocating feeder gear reducer assem-
overheated, or worn condition. Re-
bly is a double reduction unit with gear ratio
place defective bearings.
o f 15 to 1. The gear reducer transmits power
(2) Inspect the gears for chipped, cracked,
from the drive motor to the feeder drive shaft.
broken or excessively worn gear teeth.
F o r tabulated data, refer to TM 5-3820-205-
Replace defective gears.
10/l.
( 3 ) I n s p e c t the keyways for oversize or
122. Reciprocating Feeder Gear Reducer
r o u n d e d condition. R e p l a c e s h a f t s
Assembly Removal and Disassembly
w i t h defective keyways. Replace de-
fective keys.
a. Removal. Remove the reciprocating gear
(4) I n s p e c t t h e h o u s i n g a n d c o v e r f o r
r e d u c e r assembly (TM 5-3820-205-20/1).
c r a c k s , breaks, and other damage. Re-
b. Disassembly. Refer to figure 40, and dis-
place defective housing and cover.
a s s e m b l e the reciprocating feeder gear reducer
( 5 ) Replace all gaskets at reassembly.
assembly.
Note. Remove the shaft (19), bearing (20), spacer
124. Reciprocating Feeder Gear Reducer
(21), gear (22), and key (23) from the housing (36)
as an assembly and remove the bearing, spacer, gear,
Assembly Reassembly and Installation
a n d key from the shaft. Remove the shaft (24) and
bearing (26) from the housing (36) as an assembly
a. Reassembly. Refer to figure 40, and re-
and remove the bearing from the shaft. Remove the
assembly the reciprocating feeder gear reducer
shaft (26) and the bearing (27) from the housing
assembly in the reverse order.
(36) as an assembly and remove the bearing from the
Note. Press the bearing (27) on the shaft (26) and
shaft.
install in the housing (36) as an assembly. Press the
bearing (26) on the shaft (24) and install in the hous-
123. Reciprocating Feeder Gear Reducer
ing (36) as an assembly. Install the key (23) gear
Assembly, Cleaning, Inspection
(22) spacer (21) and bearing (20) on the shaft (19)
and install in the housing (36) as an assembly.
and Repair
b. Installation. I n s t a l l t h e r e c i p r o c a t i n g
a. Cleaning. Clean all parts with an ap-
feeder gear reducer assembly (TM 5-3820-
proved cleaning solvent and dry thoroughly.
205-20/l).
Note. Do not submerge rolier bearings in solvent.
AGO 8498A