TM 5-4310-386-14
6-13. Compressor Crankshaft Assembly (Cont).
(5)
Install connecting rods (13), (14), (15), and (16) on crankshaft (12), while pushing crankshaft (12) into upper
crankcase (17).
(6)
Install counterweight (11) and secure with bolt (10), lockwasher (9), and nut (8).
(7)
Install ball bearings (6) and (7) on crankshaft (12).
(8)
Install roller bearing (5), seal (4), gasket (3), cover (2) and secure with four bolts (1).
b. Repair. (figure 6-13)
(1)
Remove crankshaft assembly (para. a. above).
WARNING
Cleanliness is imperative in maintaining and handling diving system components. All tools and
parts must be kept free of oil, grease, rust, or other contamination in accordance with Chapter 4,
Section VII of this manual. Foreign substances within an assembly could result in equipment
failure and possible injury or death to personnel .
(2)
Clean crankshaft (1) in accordance with Chapter 4, Section VII.
(3)
Inspect crankshaft (1) for scoring, pitting, cracks, bent or broken shaft and signs of excessive heat.
(4)
Inspect connecting rods (2), (3), (4), and (5) and counterweight (6) for damage.
(5)
Inspect ends of crankshaft for damage to keyway (7).
(6)
If crankshaft (1) is worn, bent, or cracked, replace crankshaft.
FOLLOW-ON MAINTENANCE
(1) Install 4th stage cylinder and piston (para. 6-10).
(2) Install 3rd stage cylinder and piston (para. 6-9).
(3) Install 2nd stage cylinder and piston (para. 6-8).
(4) Install 1st stage cylinder and piston (para. 6-7).
(5) Install tension pulley assembly, driving gear, and eccentric shaft driving gear (para. 5-25).
(6) Install compressor COG belt guard and belt (para. 4-25).
(7) Install compressor front cover assembly (para. 6-12).
(8) Install flywheel/fanwheel assembly (para. 4-24).
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