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                                                                    EXHIBIT 31.2



                                  CERTIFICATION



I, Bruce C. Karsk, certify that:

       1.     I have reviewed this quarterly report on Form 10-Q/A of Lindsay
              Manufacturing Co.

       2.     Based on my knowledge, this quarterly report does not contain any
              untrue statement of a material fact or omit to state a material
              fact necessary to make the statements made, in light of the
              circumstances under which such statements were made, not
              misleading with respect to the period covered by this quarterly
              report;

       3.     Based on my knowledge, the financial statements, and other
              financial information included in this quarterly report, fairly
              present in all material respects the financial condition, results
              of operations and cash flows of the registrant as of, and for, the
              periods presented in this quarterly report;

       4.     The registrant's other certifying officer and I are responsible
              for establishing and maintaining disclosure controls and
              procedures (as defined in Exchange Act Rules 13a-15(e) and
              15d-15(e)) for the registrant and we have:

              (a)    Designed such disclosure controls and procedures, or caused
                     such disclosure controls and procedures to be designed
                     under our supervision, to ensure that the material
                     information relating to the registrant, including its
                     consolidated subsidiaries, is made known to us by others
                     within those entities, particularly during the period in
                     which this report is being prepared;

              (b)    Evaluated the effectiveness of the registrant's disclosure
                     controls and procedures and presented in this report our
                     conclusions about the effectiveness of the disclosure
                     controls and procedures, as of the end of the period
                     covered by this report based on such evaluation; and

              (c)    Disclosed in this report any change in the registrant's
                     internal control over financial reporting that occurred
                     during the registrant's most recent fiscal quarter (the
                     registrant's fourth fiscal quarter in the case of an annual
                     report) that has materially affected, or is reasonably
                     likely to materially affect, the registrant's internal
                     control over financial reporting; and

       5.     The registrant's other certifying officer and I have disclosed,
              based on our most recent evaluation of internal control over
              financial reporting, to the registrant's auditors and the audit
              committee of the registrant's board of directors (or persons
              performing the equivalent functions):

              (a)    All significant deficiencies and material weaknesses in the
                     design or operation of internal control over financial
                     reporting which are reasonably likely to adversely affect
                     the registrant's ability to record, process, summarize and
                     report financial information; and

              (b)    Any fraud, whether or not material, that involves
                     management or other employees who have a significant role
                     in the registrant's internal control over financial
                     reporting.


              /s/ BRUCE C. KARSK             Executive Vice President and Chief
              ----------------------         Financial Officer
              Bruce C. Karsk                 October 10, 2003