Festo 8024918, Repair Instructions

Page: 51 / 54

51 / 54 Festo 7ELGA-BS-KFa_en
7.4 Relubricating the roller carriage and spindle assembly
The roller carriages and the spindle assembly should be relubricated after a load-dependent lubrication interval S
int
.
To determine the lubrication interval, the load comparison factor f
v
must be calculated using the formula for combined
loads, see operating instructions Spindle axis ELGA-BS-KF (

www.festo.com ).
Note
The lubrication interval S
int
depends on the load acting on the product.
Load factors:
– dusty and contaminated environment
– Nominal stroke, 2000 mm
– Speed, 2 m/s
–
Travel profile
Z
triangular operation (frequent acceleration and braking)
– Ambient temperature, 40 °C
– Service life of the product, 3 years
• If one of these factors applies, halve the lubrication interval S
int
.
• If several factors apply at the same time, divide the lubrication interval by four.
• We recommend that you lubricate the spindle assembly and the roller carriages at the same time. In this case
lubrication should take place according to the shorter lubrication interval.
Note
The slide module must be moved forwards and backwards on the roller track during relubrication so that the grease
can fill all the spaces in the roller carriages.
For notes and information on greasing, refer to the Spindle axis ELGA-BS-KF operating instructions (

www.festo.com ).
• Always insert the lubricant in all lubrication nipples; note the grease
quantity per lubrication nipple (see Table).
1
1
2
1
Lubrication nipple for the two
roller carriages
2
Lubrication nipple for the spindle
assembly
ELGA-BS-KF-70 ELGA-BS-KF-80 ELGA-BS-KF-120 ELGA-BS-KF-150
Roller carriage grease quantity
each
lubrication nipple 1
0.4 g 0.8 g 2.0 g 3.4 g
Spindle assembly grease quantity
in lubrication nipple
2
2.0 g 2.5 g 3.0 g 15 g
Festo offers a one-hand, high-pressure grease gun with a suitable pointed nozzle for greasing the lubrication nipples
(

Chapter 8.2 on page 52 ).