Break-In Procedure - Nakanishi EMA - 3020K Operation Manual

11.

BREAK-IN PROCEDURE

During transportation, storage or installation, the grease inside the bearings will settle. If the Brushless Motor
Spindle is suddenly run at high-speed, the grease will be ejected from the bearings, causing excessive heat that
will cause bearing damage.
After installation, repair, initial operation, or long periods of non operation, please follow the break-in procedure
detailed in Table. 2.
Table. 2
Steps
Rotation Speed
-1
(min ) (rpm)
Rotation Time (min)
Items to Check No Abnormal
Noises
12. GREASE INJECTION
CAUTION
・ Be sure to use our speci¿ed grease. The other type grease may cause damage to Brushless Motor
Spindle.
・ When the thread on the side of the Brushless Motor Spindle is removed, need to stop the air supply.
Failure to stop the air Àow will cause grease to spray out of the grease inlet.
To extend the durability of the reduction gear, inject grease at every 70 - 100 hours in the manner described below.
Grease injection prevents the friction of the parts assembled inside as well as heat generation. It also prevents the
degradation of grease inside.
Periodic grease injection is an important part of routine maintenance.
12 - 1 Grease Injection
① Turn OFF the power switch of the
CONTROLLER and stop the air supply.
② Remove the Grease Inlet Screw on the
Brushless Motor Spindle with a screw driver
(Fig. 20).
③ Mount the Grease Nipple on the top of the
provided Grease Dispenser. And attach the
Grease Nipple on the topped hole removed the
thread in the step.
10
1
5,000 10,000
15 10
The Brushless Motor Spindle housing temperature
during the break-in process should not exceed
20 degrees C (36 degrees F) above ambient
temperature. Should the Brushless Motor Spindle
exceed this limit, rest the Brushless Motor Spindle
for at least 20 minutes and re-start the break
in procedure from the beginning. If the housing
temperature rises again and exceeds 20 degrees C
(36 degrees F) above ambient temperature, check
the Brushless Motor Spindle for proper installation.
2
Screw
Grease Nipple
3
20,000
10
The Brushless Motor
Spindle housing
temperature during
the break-in process
should not exceed
20 degrees C (36
degrees F) above
ambient temperature.
Fig. 20
Grease Dispenser
Fig. 21
4
32,000
15
Injection bar