7
4. Check shaft -- remove surface nicks, burrs and grooves and look for spiral machine marks that
can damage the seal lip.
5. Check shaft end -- remove burrs or sharp edges. The shaft end should be chamfered.
6. Check splines and keyways -- smooth any sharp edges and when necessary protect the seal lip
with an assembly sleeve or shim stock. Round the edges of the spline or keyway as much as
possible and lubricate with a hard, fibrous grease.
7. Check seal direction -- make sure that the new seal faces in the same direction as the original.
Generally, the lip faces the lubricant or fluid to be sealed.
8. Pre-lubricate the sealing element -- before installation by wiping with lubricant being retained.
9. Use the correct installation tool -- press fitting tools should have outside diameter .010" smaller
than the bore size. If possible, the center of tool should be relieved so pressure is applied only at
the outer diameter of the seal.
10. Use proper driving force -- where possible, an arbor press; otherwise, a dead blow hammer to
avoid popping the spring out of the seal. NEVER HAMMER DIRECTLY ON THE SURFACE OF
THE SEAL.
11. Bottom out the tool or seal -- to avoid cocking of the seal in the bore. This also positions the seal
correctly on the shaft.
12.
Check for parts interference -- from other machine parts that might rub against the seal causing
friction and damaging heat.
Gear Reducer Service Data
CAMCO Index Drives use two basic makes of reducers. These are CAMCO (R180, R225, R260) and
Cone (7300C, 7350C, etc.). The service data list below is intended to cover both in a general manner.
For other types of reducers, consult the manual supplied with the reducer or contact DESTACO.
1. For reducers supplied with a sight glass, the oil level should be checked monthly and the
recommended oil added as required to maintain the proper oil level.
2. The oil should be changed as outlined in the lubrication section.
3. All grease fittings should be lubricated with the recommended grease once per month.
4. The reducer, particularly finned areas and fan covers. should be kept clean to allow maximum
heat dissipation. (Excessive accumulation of dirt and grease will effect proper cooling of the unit).
5. All reducer and foundation bolts should be checked for tightness after three months of service
and annually thereafter.
6. A change in sound level or excessive vibration can indicate low oil level, abnormal loading or worn
elements.
7. During operation, a worn gear may run hot. However, unless the temperature exceeds 200° F.
(93° C) there is no cause for alarm.
