(a) The election officials of each county shall cause the proper ballot labels to be placed on each vote recorder which is to be used in any election within such county and shall cause each vote recorder to be placed in proper order for voting.

(b) The election officials of each county shall appoint one custodian of vote recorders, and such deputy custodians as may be necessary, whose duty it shall be to prepare the vote recorders to be used in county elections. Each custodian and deputy custodian shall receive such compensation as provided for in the annual county appropriation. Such custodian shall, under the direction of the county election officials, have charge of and represent them during the preparation of the vote recorders as required by this article, and he and the deputy custodians, whose duty it shall be to assist him in the discharge of his duties, shall serve at the pleasure of the county election officials.

(c) On or before the third day preceding an election, the county election officials shall have the tabulating machines tested to ascertain that they will correctly count the votes cast for all offices and on all questions. Public notice of the time and place of the test shall be made at least five days prior thereto. Representatives of political parties and bodies, candidates, news media and the public shall be permitted to observe such tests. The test shall be conducted by processing a preaudited group of ballot cards clearly marked for such purpose, not to exceed fifty for each candidate or question, so punched or marked as to record a predetermined number of valid votes for each candidate and on each question, and shall include for each office one or more ballot cards which have votes in excess of or less than the number allowed by law in order to test the ability of the tabulating machine to reject such votes. The tabulating machine shall not be approved unless it produces an errorless counting. If any error is detected, the cause therefor shall be ascertained and corrected, and an errorless count shall be made before the machine is approved. The same test shall be repeated immediately before the start of the official count of the ballot cards and at the conclusion of such count. The county election officials or custodian shall also prepare the vote recorders for voting at the various polling places to be used in the election. In preparing the vote recorders, they shall arrange the recorders and the ballot labels so that they meet all requirements of voting and counting at such primary or election, thoroughly inspect and test the vote recorders, and file a certificate, as prescribed by the State Election Commission, in the office of the county election officials that the recorders are in proper order with correct ballot labels.

(d) Prior to the election, no county election officials, nor custodian, nor other employee shall in any way prevent free access to and examination of all voting machines which are to be used at the election under proper supervision and, at reasonable times, by any interested persons.