(f) Check the tanks for evidence of leakage. To discover the source of
leakage remove a side panel from the tank area. Look for deposits or spotting under the
tanks. If a leak is occurring around a fitting, drain the tank to a point below the level of
the fitting. Remove the fitting and clean it. Inspect the seal and replace it if it is
damaged. Be sure to clean up any splashes below the tank. Inspect the wiring and the
components to make sure there is no damage.
(8) Check the drive motor, shaft, and chain. The drive motor is located on
the right side of the processor, beneath the developer tank. See figure 1-1. It drives the
entire transport system through a set of sprockets, a drive chain, and a main drive shaft.
The horizontal worm gears on the main drive shaft mesh with the main rack gears on
the developer, fix, wash, and dryer racks. This drives the rollers in the racks to advance
the film. Rollerless crossover assemblies between the developer/fix and fix/wash racks
minimize crossover time. The speed at which the film is advanced through the racks is
predetermined by the speed of the drive motor, the reducer gear ratio, and the size of
the drive sprockets. The manufacturer's specifications list the developer and dry-to-dry
times. The transport system on the AFP 14-X3 operates whenever the power switch on
the control panel is in the ON position. The drive motor normally has enough torque to
turn the drive shaft, even if one of the racks is struck. Motor failure would most likely
occur from an internal short or bind.
(a) Check the mesh with the rack gears.
(b) Check for the correct chain tension. The processor drive chain is
located inside the electrical compartment. Remove the front panel and the chain guard
to gain access to the drive chain. See figure 1-12. The drive chain may require periodic
adjustment to maintain the correct tension of the chain on the drive sprockets. Adjust
the drive chain tension spool until the chain deflection (or play) is about 1/8 to 1/4 inch
(0.3 to 0.6 centimeter [cm]). Do not over-tighten the chain, as this will cause excessive
sprocket wear. If you need to remove the chain (for example, when checking for a bind
in the drive shaft), remove the connecting link from the drive chain. Then remove the
drive chain from the sprockets.
Lubricate the drive chain.
(d) Lubricate the output shaft bearing on the drive motor reducer.
(e) Check and grease the plastic running gears on the shaft with a
moderate amount of AFP 8827 Grease. See figure 1-4.
(f) Lubricate the drive shaft thrust bearing by applying a moderate
amount of the same grease to the thrust bearing at the end of the main drive shaft.
Wipe off the old grease before adding the new grease.
(g) Check the amp draw and the motor operation. Refer to figure 1-13.