It is supplied with lubricant for life, and as we only carry out a complete overhaul if there is a severe leakage, refilling will only be called for rarely. To rectify problems of lost motion, slackness and vibration of the Rack And Pinion, one need to: Unscrew the ground terminal of the car battery. Loosen the nut on the Pitman arm and place it aside, note the position of the pitman on the pitman shaft. Having issued these disclaimers, remove the Pitman arm using a suitable puller, then slacken the adjuster plug locknut on the Rack And Pinion and turn the adjusting plug a quarter turn. Pull out the horn button or horn shroud and with full turn to left followed by half a turn to right. With an accurately fitted socket tightened on the centre nut of the steering wheel and detent pin, and a beam or dial type torque wrench, rotate the steering shaft through 90 degrees of its travel, and note the bearing drag as an indication of the thrust bearing pre-load; the party drag should be within the range of 5-9 inch lbs for the earlier models up to 1972 and 4-6 inch lbs for the As a final step turn the plug in the desired position until the right amount of preload is attained, finally tighten the locknut. A irregular staccato feel when the steering wheel is being turned means that the bearings of the Rack And Pinion have worn or are damaged. After that, car's steering wheel from one stop to the other should be turned, with count the number of turn-from, lock to lock TURN, and then the Rack And Pinion is to be turned half of that number to get it to the center. Unscrew the lash adjuster screw locknut and rotate the screw clock wise until all the lash is released between the ball nut and the Pitman shaft sector teeth, tighten the locknut while driving the secrete with the screw. Measure the 'over-center' preload by noting the highest torque at the wheel's centered position; it should be at 4 to 10 in-lbs for models before 1973 and 5 to 9 in-lbs for models on or after 1973, but in any case not less than the value set above. If there are further modifications, which need to be made, the position of the lash adjuster screw can be altered as well. Last of all reconnect the battery ground cable and finally tighten the Pitman arm nut to the specified torque, then reassemble the horn shroud and Pitman arm.
