DE-STA-CO S/SM300A - Manual (Page 24)

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SECTION 7: Troubleshooting
TROUBLESHOOTING GUIDE
Symptom Cause Solution
Backlash at output shaft Worn/damaged followers Replace
(in dwell)
Tight Stations Bent cam followers Replace; inspect holes in roller
(torque required to rotate gear shaft
cam shaft through tight
station is more than 1 1 /
2
times the loose station)
Pitting of cam follower outer Incorrect oil Replace cam followers and fill
race/cam track surface unit with correct oil
Fine magnetic metallic particles Steel and iron worn from Normal-Flush
in oil; appear bronze color bearing roller ends and cages out when replacing oil
when in oil and cams surface (this is a
normal condition)
REDUCER:
Excessive Backlash A. End play in worm shaft Contact Technical Services at
due to improper pre-load 800-645-5207 or 847-459-5200.
of shaft bearings.
B. Loose gear on camshaft. Contact Technical Services at
800-645-5207 or 847-459-5200.
Overheating in Excess of 210°F A. Improper pre-load on Contact Technical Services at
worm-shaft bearings. 800-645-5207 or 847-459-5200.
B. Incorrect alignment of Contact Technical Services at
worm and gear. 800-645-5207 or 847-459-5200.
C. Excessive worm speed. Contact Technical Services at
800-645-5207 or 847-459-5200.