Festo Амортизаторы YSRWJ - Manual (Page 19)

YSRWJ-...-A
Festo YSRWJ-...-A 0008NH English
19
At a temperature of 0 °C:
S note that the reset times of the YSRWJ-... are longer.
Low temperatures cause an increase in the viscosity of the hydraulic oil.
S Check the cushioning elements (type designation see “Accessories”) for the
following signs of wear:
Cushioning element Shock absorber 4 4 4 4 Rubber buffer 7 7 7 7
Test cycle Every 2 million strokes (approx. every 2 months)
*)
Sign of wear Oil leakage; hard knocking;
stop plunger
6
remains in
the retracted end position or
moves away from it only hesi-
tantly.
Loud noises
Replacement cycle Every 10 million strokes
(approx. 1 year)
*)
Every 5 million strokes
(approx. 1/2 year)
*)
*) At 0.5 Hz in dual operation mode
Fig. 14
The moveable mass should always reach the end position safely, but not strike
hard against it.
S Check whether more frequent tests are required. This may be the case:
– when subjected to high temperatures
– when very dirty
– when in the vicinity of solvent liquids or fumes.
7 Care and maintenance
S If the YSRWJ-... is dirty, clean it with a soft cloth.
Permitted cleaning agents are:
– soap suds (max. 60 °C)
– all non-abrasive agents.