Section XIV. UNIVERSAL JOINTS

Note. Readings above apply at electrolyte temperature

b. Cleaning.

of 80 F. At different temperatures, add 0.004 to reading for

( 1 ) Wash battery by flushing freely with

each 10 F. above 80 F; subtract 0.004 from actual reading

water. Use brush if necessary to remove crusted

for each 10 F. below 80 F. to obtain value for comparison

deposits. Brush terminal posts to bright finish

with figures given. In case of chronic low state of charge, refer

condition to higher maintenance for charging system service.

without removing metal.

(2) Wash battery cables in hot water to,

(2) With fully charged battery installed, test

remove dirt and corrosion, Wire brush inside of

cables and connections as follows:

battery terminals to bright finish.

(a) Contact positive battery post (do not

c. Installation. Reverse a above. Tighten battery

touch cable terminal) with positive lead of volt-

h o l d - d o w n nuts (2) only tight enough to hold

m e t e r calibrated in tenths of a volt. Contact

battery snugly. Do not over tighten.

n e g a t i v e voltmeter lead to starter terminal of

d. Test.

starter.

(1) Remove cell caps, and test specific gravity

(b) Crank engine. Note voltmeter reading

of electrolyte in each cell with battery hydrometer.

while cranking. Any reading in excess of 0.2 volt

All cells should read within 10 points of each other.

indicates electrical resistance due to a bad cable or

Reading of 1.275 to 1.300 indicates full charge;

connection.

1.220 to 1.225 indicates about 50 percent charged;

(c) R e p e a t ( a ) a n d ( b ) a b o v e , e x c e p t

1.160

indicates

practically

complete

discharge.

contact ground on engine with voltmeter positive

Variations in readings among cells indicate the low

lead, and voltmeter negative lead touching battery

negative post. Voltmeter reading greater than 0.2

reading cells are defective, and battery must be

replaced.

volt indicates bad cable or connection.

Section XIV. UNIVERSAL JOINTS

4-52. General

(2) S l i d e t w o s e c t i o n s o f p r o p e l l e r s h a f t

together along splined section and withdraw

A propeller shaft containing a universal joint is

p r o p e l l e r shaft with two crosses from between

used to connect the transmission to the input pinion

transmission and drop gear case.

on the drive axle, The propeller shaft has a slip

(3) Remove screws and lock plates securing

spline section which facilitates removal and in-

t r u n n i o n bearings to flanges on both ends of

stallation of the shaft.

propeller shaft, Separate trunnion bearings and

4-53. Replacement of Universal Joints

crosses from propeller shaft flanges.

a. Removal.

(4) Remove rollers from trunnion bearings.

(1) Remove screws and lock plates (fig. 4-35)

(5) Remove seals and seal retainers from both

securing trunnion bearings to flange at rear of

crosses.

transmission and at flange on rear axle drop gear

case.

4-42