DE-STA-CO INDEX DRIVES GENERAL SERVICE MANUAL - Manual (Page 11)

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3. Long Term Storage (Outdoors) for Periods up to One Year.
Proceed as in (2) above with the following additions.
(a) After filling the unit with oil, plug the breather hole with a pipe plug and wire the breather
to the unit.
(b) Coat all exposed shafting with long term rust preventative.
4. Extended Storage periods Exceeding One Year.
(a) Coat all exposed shafts with a long term rust preventative.
(b) Place the unit in a heavy plastic bag and put approximately 1/2 oz. #260 "VPI" powder in
the bag. Seal the bag air tight.
(c) Crate the unit and cover the crate to keep out water.
(d) Purchase a spare set of oil seals to have on hand at start-up.
Troubleshooting Guide
IMC recommends that only technicians experienced in index drives maintenance make repairs. A
full year warranty is given on any unit rebuilt by IMC.
If the customer must rebuild the unit themselves, they should refer to the individual service manual
that applies to theirs model index drive. They should follow step-by-step procedures for isassembly
and assembly as described in theses manuals. Cautions and warnings should also be followed.
NOTE: IMC will not warrant any unit rebuilt by the customer.
SYMPTOM: INDEXER APPEARS INACCURATE
1. Check if unit stops in dwell. See the assembly drawing for your unit for keyway position in
dwell. Also refer to cycle cam and limit switch function in this manual.
2. Is the output shaft backlash-free in dwell? Be sure to disconnect all other devices from the
indexer output including an overload clutch. All indexers must be backlash-free in dwell (see
Symptom: Looseness in Dwell).
3. How is the unit being checked? IMC uses a computer controlled checking machine to check
each index against a theoretical perfect index. Contact the factory for assistance. IMC keeps
inspection reports for units with special accuracy (units required to be within closer
tolerances than standard).
SYMPTOM: LOOSENESS IN ONE DWELL
1. Followers are worn and need replacing.
2. Follower wheel is damaged and needs rework or replacement.
SYMPTOM: LOOSENESS IN EACH DWELL
1. Camshaft is loose in bearings. Check for end play in input shaft. Adjust shims on bearing
caps. See individual service manual for preload setting procedures.
2. Cam is loose on shaft. Usually repaired at the factory.
3. Cam is broken. (This rarely happens and is an indication of an overload application or a
jam).
4. Unit was very heavily overloaded and all bearings loosened up. Factory rework required.