ProMinent DULCOMETER PH-501 Assembly And Operating Instructions Manual page 861

5. If timing gears appear to be reusable, match marktiming gear toothmesh by making small punch marks on
the ends of meshing gear teeth with a pin punch and hammer (see FIGURE 6-2, page 27). The impeller tip
to valley (throat) and the case to headplates should also be matchmarked to facilitate blower reassembly.
6. Remove all cap screws from both gear locking assemblies (see FIGURE 6-3). Thread 3 of these cap screws
into the threaded holes in the outer ring of each locking assembly. Tighten the screws evenly to remove the
locking assembly from each gear. Remove the gears (9) from both rotor shafts.
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