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Corvair Chassis Shop Manual Supplement December 1966
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BATTERY 6Y 6 A fully charged Battery will have a specific gravity N AL NG BATTERIES reading of approximately 1 270 at an electrolyte tempera ture of 80OF If the electrolyte temperature is above or To install a Battery properly it is important to ob below 80OF additions or subtractions must be made in serve the following precautions order to obtain a hydrometer reading corrected to the Connect grounded terminal of Battery last to avoid 80OF standard For every 100 above 80 F add four spe short circuits which may damage the electrical cific gravity points 004 to the hydrometer reading system Example A hydrometer reading of 1 260 at ll0 F would Be sure there are not foreign objects in the carrier be 1 272 corrected to 80OF indicating a fully charged so that the new Battery will rest properly in the bot Battery For every 100 below BOOF subtract four points tom of the carrier 004 from the reading Example A hydrometer read Tighten the hold dovm evenly until snug 60 80 in ing of 1 272 at OOF would be 1 240 corrected to 80OF in lbs Do not draw down tight enough to distort or dicating a partially charged Battery crack the case or cover Be sure the cables are in good condition and the ter SPECIFIC GRAVITY CELL COMPARISON TEST minal clamps are clean and tight Make sure the This test may be used when a instrument tester is not 1 d cable IS clean and tlght at ngme block OIT available To perform this test measure the specific gravity of each cell regardless of state of charge and Check polarity to be sure the Battery is not reversed interpret the results as follows with respect to the generating system If specific gravity readings show a difference between the highest and lowest cell of 050 50 points or more the Battery is defective and should be replaced REPLACEMENT Fig 8b 1 Disconnect Battery negative and positive cables 2 Disconnect Battery vent covers from vent plugs 3 Remove Battery hold down clamp bolt and clamp 4 Remove Battery from tray and transfer vent cover to DO NOT SUCK HOLD replacement Battery TN TOO MUCH TUBE 5 Position new Battery which has been properly acti ELECTROLYTE VERTICAL vated in the Battery tray L 6 Install Battery clamp and bolt NOTE Recommended hold down bolt torque is FLOAT MUST it E 6O g0 m lbS BE FREE r A r 7 Connect Battery vent covers to vent plugs W i T y 8 Connect Battery positive and negative cables rf y E Q5 CAUTION To insure good contact the Battery A TT cables should be tight on the Battery posts Oil L the Battery terminal felt washer If the Battery T posts or cable terminals are corroded the ca Q Ml TAKE READING bles should be cleaned separately with a soda T i AT EYE LEVEL solution and a wire brush After cleaning and installing clamps apply a thin coating of petro Ti latum to the posts and cable clamps to help re tard corrosion See Figlure 8b for correct in Fig 7b Tesiing Specific Gravity stallation of cable terminal clamps CORVAIR SHOP MANUAL SUPPLEMENT