TM 5-3820-241-34
23 Hex head capscrew
1 Oil filler cap assembly 12 Exhaust cap deflector
24 Washer
2 Oil drain pipe plug
13 Valve assembly
14 Rotary valve housing 25 Counterbalance
3 Oil level pipe plug
26 Retaining ring
4 Oil level cock
15 Straight pin
5 Hex head capscrew
16 Piston pin
27 Connecting rod
17 Piston
28 Bushing
6 Lockwasher
29 Sleeve
7 Cylinder assembly
18 Compression ring
30 Retaining ring
8 Cylinder gasket
19 Oil ring
31 Ball bearing
9 Air orifice
20 Crankshaft assembly
32 Ball bearing
21 Headless setscrew
10 Hex head capscrew
33 Motor housing
11 Lockwasher
22 Taper pin
Tramming motor, disassembly and reassembly.
connecting rods (27) out of the motor housing (33)
(2) Wedge two screw drivers between the
b y shifting the connecting rods to clear the
valve housing (14) and motor housing (33) to pry
cylinder holes.
the valve housing loose.
(3) If cylinder (7) is tight in the housing, use
6-3. Tramming Motor, Cleaning, Inspection and
a rubber or plastic mallet to free them.
Repair
(4) Rotate the crankshaft (20) to bring each
a. Cleaning. Clean all parts except the
piston pin (16) above the motor housing (33), then
bearings and gasket in cleaning solvent (FED
push out the pin and remove the piston (17).
SPEC PD 680) and dry thoroughly.
(5) Pull the crankshaft (20) with attached