TM 5-3820-241-34
b. Disassembly. Disassemble the feed motor in
numerical sequence as illustrated in figure 5-2.
ME 3820-241-34/5-2
17
Piston
12
Roller
7 Plug valve
1 Plain hex nut
18
Piston ring
13
Valve and crankshaft assembly
8 Hex head capscrew
2 Lockwasher
19
Motor housing
14
Hex head capscrew
9 Lockwasher
3 Line up screw
20
Hearing
15
Lockwasher
10 Air motor cover
4 Steet elbow
21
Adapter
16
Cylinder head
11 Retaining ring
5 Air inlet bushing
22
Housing stud
6 90 degree elbow
Figure 5-2. Feed motor, disassembly and reassembly.
(3) Inspect the cylinder heads for scoring and
5-3. Feed Motor Cleaning, Inspection and Repair
excessive wear.
a. Cleaning. Wash all parts with cleaning
( 4 ) Inspect t h e valve and crankshaft,
solvent (Fed Spec PD 680) and dry thoroughly.
bearings and rollers for excessive wear or other
b. Inspection and Repair.
damage.
(1) Inspect the hoses fittings, hardware, and
(5) Repair by replacement of defective parts
threaded areas for damaged threads.
(2) Inspect the pistons and piston rings for
5-4. Feed Motor Reassembly and Installation
scoring or scratches. Remove minor scratches
a.. Reassembly.
with a fine abrasive cloth.