Feb. 11, 1972
Mar. 9, 1972 Update

Applies to: All 41B & 42B machine after 1963:

Be ABSOLUTELY sure that the head clamp block screws are properly torqued on each machine installation and/or on routine service calls.

Double-check the blocks on machines shipped with the head removed. On any machine shipped with the head removed, it is possible you will find the screws 'finger-tight'. The blocks will have been removed during shipping to allow the clamp gib to be removed.

Anytime the head clamp mounting bolts are disturbed, it is necessary to:

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