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-
b l y is a double reduction unit with gear ratio
place defective bearings.
o f 15 to 1. The gear reducer transmits power
from the drive motor to the feeder drive shaft.
( 2 ) Inspect the gears for chipped, cracked,
F o r tabulated data, refer to TM 5-3820-205-
broken or excessively worn gear teeth.
10/1.
Replace defective gears.
(3) I n s p e c t t h e k e y w a y s f o r o v e r s i z e o r
122. Reciprocating Feeder Gear Reducer
rounded condition. Replace shafts
Assembly Removal and Disassembly
w i t h defective keyways. Replace de-
fective keys.
a . Removal. Remove the reciprocating gear
r e d u c e r assembly (TM 5-3820-205-20/1).
(4) Inspect the housing and cover for
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
(21), gear (22), and key (23) from the housing (36)
124. Reciprocating Feeder Gear Reducer
as an assembly and remove the bearing, spacer, gear,
Assembly Reassembly and Installation
and key from the shaft. R e m o v e 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
shaft.
Note. Press the bearing (27) on the shaft (26) and
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 Repair
and install in the housing (36) as an assembly.
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.
206-20/1).
AGO 8498A