b. Disassembly. Disassemble the feed motor in
7 Plug valve
1 Plain hex nut
Valve and crankshaft assembly
8 Hex head capscrew
Hex head capscrew
3 Line up screw
10 Air motor cover
4 Steet elbow
11 Retaining ring
5 Air inlet bushing
6 90 degree elbow
(3) Inspect the cylinder heads for scoring and
5-3. Feed Motor Cleaning, Inspection and Repair
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.
(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
with a fine abrasive cloth.