Recalibrate Acroprint 125/150 Print Alignment

This procedure is used when an Acroprint Model 125 or Model 150 keeps correct time but the printed punch does not match the dial (misaligned imprint). It is not the standard method for setting time. After recalibration, verify punch accuracy to reduce payroll errors and recordkeeping risk.

Recalibration Steps for Models 125 and 150

1. Stage the print position: Punch a test and set the printed time so it reads 4:30 (or 16:50). Then unplug the clock.
2. Correct the hour hand position: Carefully push the hour hand to the correct position, approximately halfway between 4 and 5.
3. Drop the minute hand to “6”: Using a screwdriver, slightly loosen the minute-hand screw, allow the minute hand to drop to the 6, then tighten the screw.
4. Power and verify: Plug the clock back in and punch multiple test prints. Confirm the printed time aligns with the dial before returning the unit to daily use.

Operational Notes for Timecard Integrity

• Document the change: Keep a dated test punch before and after recalibration for payroll record continuity.
• Train supervisors: Require a quick verification punch after any adjustments to prevent downstream corrections.
• Historical handling: Older mechanical recorders can drift in print alignment over time; recalibration restores alignment without changing the clock’s basic timekeeping function.

If your unit still prints inconsistently after recalibration, treat it as a print mechanism or component issue rather than a calibration issue.