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Caution
Caution
3-2 Warming-up Operation of Spindle
3-2-1 Warming-up at the Time of Starting Daily Operation
It is necessary to keep the bearing lubrication in a good condition for getting the normal
spindle revolution. If the spindle is suddenly rotated at a high speed without warming-
up, there is a danger of the oil film being cut and the bearing is burnt stuck. To have
the spindle operated correctly in full capacity, warming up operation is necessary of
which the following should always be practiced practice.
Warming-up before starting daily operation (30 minutes)
[1] 30% of maximum spindle revolution (10 minutes)
↓
[2] 50% of maximum spindle revolution (10 minutes)
↓
[3] 80% of maximum spindle revolution (10 minutes)
Practice warming in the order of [1] , [2] , [3] .
3-2-2 Warming-up When the Machine Was Not Operated for More Than One Week or
Longer
In case of starting the spindle of oil air lubrication, after it has not been used for more
than one week, warming-up must be practiced taking a longer time than usual, as oiling
into bearing is necessary. In this case, please make sure up practice warming-up
according to the following schedule.
1. #50 - Spindle of 10,000min
-1
specification (oil air lubrication)
Warming-up after the spindle has not been used for more than
one week (minimum warming-up time 4 hours)
[1] By 2,500min
-1
for 1 hour or longer
↓
[2] By 5,000min
-1
for 1 hour or longer
↓
[3] By 7,500min
-1
for 1 hour or longer
↓
[4] By 10,000min
-1
for 1 hour or longer
Practice warming in the order of [1] , [2] , [3] , [4] .
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