Inspection of Drive Shafts -706880699

TM 5-4210-233-14&P-1

5-7. DRIVE SHAFTS, UNIVERSAL JOINTS AND YOKES - Continued

(9)

Support removed end of drive shaft using mechanics wire.

(10) Remove the bearing plates from the opposite end of the drive shaft similar to steps (3) through (9)

preceding.

(11) Carefully maneuver universal joint cross (5) out of the end yokes(4 or 7). Do not use force as this

can damage the bearing surfaces.

b. Inspection of Drive Shafts.

(1)

Using a clean, dry, lint free cloth (Item 42,

Appendix E) wipe exposed universal joint cross

journals.

(2)

Visually inspect exposed universal joint cross

journals and needle bearings in bearing plates.

Look for defects caused by lack of lubrication

and physical damage. If corrosion, pitting,

unusual wear or missing bearing needles is

evident, the universal joint must be replaced.

(3)

Check the remaining two universal joint

bearings. Grasp the universal joint cross as

shown, and oscillate the cross. Binding or

looseness indicates a defective bearing. If

damage is evident, the universal joint must be

replaced.

(4)

Apply a small amount of grease (Item 15,

Appendix E) to needle bearings of removed

bearing plates.

(5)

Install the bearing plates (3) to the universal

joint cross (5).

(6)

Turn and test each bearing plate on the cross

journals as shown. The movement must be

smooth and resistance free.

(7)

Install universal joint in a vise so the loose

bearing plates are clamped to the cross. Using

a grease gun, lubricate the universal joint until

grease (Item 15, Appendix E) is expelled from

all four bearing plates. If grease nipple is

blocked, remove and replace.

(8)

Remove universal joint from vise and tempor-

arily tape or wire bearing plates to cross.

(9)

Visually inspect drive shafts for dents,

excessive corrosion, cracked welds, or missing

balance weights.

(10) If a drive shaft is damaged it should be replaced

along with the universal joints.

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