Spindle Warm-Up - Sharp SV-4328 Maintenance Manual

PRECISION MACHINE TOOLS

2-3 Spindle Warm-up

This is an aerosol lubrication design, and so before turning on the machine, follow the warm-up steps
below to extend the lifespan of the spindle and to avoid damaging the bearing by letting the oil
aerosol getting into the bearing ahead.
Item Condition
1 Routine operation
If the spindle has been
stopped for more than two
2
hours, warm-up is
compulsive.
Spindle stopped for more
3
than 72 hours
Spindle stopped for more
4
than 2 weeks
Spindle warm-up time
Spindle RPM
(Maximum RPM %)
Max Rpm 20%
20%
1. 20%
2. 50%
1. 500 RPM
2. 20%
3. 40%
4. 60%
5. 80%
6. Maximum RPM
Rotation Time
( min )
10
10
10
10
60
10
10
*10
*10
*10
17
Ver 2 Maintenance Manual
Check Contents
1. Less than 10°C
increase of
temperature
2. Shocks
3. Noises
1. Less than 10°C
increase of
temperature
Shocks
2. Noises
1. Less than 10°C
increase of
temperature
2. Shocks
3. Noises
Less than 10°C
increase of
temperatureShocks
Noises
4. Do not go onto the
next step until the
temperature has
become stable.