3,000 Cycle Maintenance Steps
2-8
990 APEX Service Manual
Inspect all Photo Eyes
Inspect all photo eyes secure and tight.Check Nut that attaches Photo Eye to Machine. Check
Connection to Photo Eye
Inspect Limit Switches
Inspect all limit switch arms for tightness or breaks.
Inspect the switch for cracks in the body and check that the switch arm actuates (clicking sound)
when moved to the extreme.
Depending on the model of limit switch, the amount of "pre-travel" (amount of movement from
the arms resting position) is either 5 or 20 degrees before the limit switch actuates.
Inspect Screw Receiver Parts
Inspect screw receiver parts on six shooters for cracks or breaks. Replace any parts that are bro
-
ken.
Inspect:
1.
Screw Receiver
2.
Spring
3.
Split Shell
4.
Steel Ring
5.
Rubber Ring
6.
Steel Ring
Summary of Contents for 990-APEX
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