8.
Maintenance
8-2
CKRF
8. Maintenance
8-3
Daily inspection
8-4
Periodical inspection
z
Before operating the product, visually check any exterior damage or stain.
z
Check the grease state (stain, etc.). If the grease is significantly stained, wipe off the
grease, and then supply new grease. (Supply the new grease until it comes out from the
inner block, and exhaust the stained grease. )
z
Check whether abnormal noise or vibration occurs during operation. If abnormal noise
or vibration occurs, immediately stop the machine and inspect the state of the product.
Insufficient lubrication or loosening of a mounting bolt can be a cause of abnormal noise or
vibration. Check for insufficient lubrication or loosening of a mounting bolt.
z
Perform more detailed inspection approximately once every 3 to 6 months.
· Check the lubrication state, and then clean the product and replenish the grease.
· Inspect whether each mounting bolt has loosened, and if any of them has loosened, retighten it.
z
For the suction port, check the following and replace it as needed:
1) Scratch, dent, wear, and corrosion
2) Air leaks
3) Twist, crush, or distortion of a tube
4) Hardening, deterioration, or softness of a tube
Visually check abnormal wear, scratches, or cracks on the surface of the strip seal.
If you find any abnormalities, replace the strip seal.
For the replacement procedure, see "Replacement of the strip seal procedure".
8-5
Lubrication
z
The standard models are supplied with the following grease before shipment.
THK AFF grease
See the appendix for details of the greases.
z
Basically, this is the long-term maintenance-free product not requiring greasing, but
depending on your operating conditions and service environment, greasing may be
needed. We recommend you set up a greasing interval at the initial inspection. In
addition, if you use the product exceeding the travel distance of 10,000 km (horizontal
and wall mount), or 5,000 km (vertical mount), replenish grease approximately every six
months or 100 km travel distance, whichever comes first.
* Note that the greasing interval becomes shorter than usual in case of high-load use or under the
environment where oil content decreases.
z
CKRF does not have a grease nipple for lubrication, but apply grease to the inner block
from the grease inlet on the side face of the outer rail and directly to the ball screw shaft.
www.thk.ru
тел. +7(499) 703-39-86