Terex Series AL4000, Руководство по эксплуатации и обслуживанию

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Rear Bearing Inspection Requirements
Leroy-Somer 6 & 8 kw Generators
The rear bearing on all 6 & 8 kw generators should be inspected every two (2) years or 2000 hours, whichever occurs
first. The bearing should be replaced at three (3) years or 3000 hours. Careful attention to this inspection proeedure will
prevent total generator failure resulting from bearing or bearing carrier deterioration.
There are two areas to examine during the inspection. First is the clearance between the bearing outer case and
thegenerator bearing carrier (NDE Bracket). The bearing should fit snugly into the carrier so that it can be rotated only
with some resistance. Side to side movement should be less than .010". If the bearing can be moved easily inside the
carrier or if there is visible evidence of bearing carrier wear, the housing carrier should be replaced with End Kit #836835
(which includes the carrier, bearing and 0-Ring). The second area of concern is the bearing itself. If roughness can be felt
when rotating the outer race of the bearing, the bearing needs to be replaced (#836828). The other area to check is to see
if the outer race will rock back and forth along the bearing axis. If there is movement in this axis, replace the bearing. If
neither of these conditions exist, replace the bearing retaining 0-Ring (#836830) and reassemble. Note: These bearings are
sealed units and cannot be field serviced.
Follow the same procedure at three (3) years or 3000 hours. At this time replace both the bearing and O-Ring as well as
inspecting the bearing carrier.
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