9
Maintenance
9-46
RUTHMANN-Steiger
®
TB270
BA.GB.12-27409-05-07-FTA-jr
9.4.5.10
Hydraulic system
Check free spaces for movement sequences of hydraulic cylinder, es-
pecially of installed hydraulic cylinders. Remove impurities immediately.
Check fastenings of constructional components. Check tube- and hose
connections for firm hold.
Check tube- and hose connections for damage like e.g. bends, fissures,
porose surfaces or corrosion.
Check tightness.
Check tightness of safety valves at the hydraulic cylinders with per-
missible load acc. to BGG 945:
extend stabilizing jacks,
lift boom,
extend telescope.
Keep Ruthmann-Steiger in this position. There must be no change in
the position for a period of 5 minutes. If a change of the position oc-
curs, the reason must be found out and the fault must immediately be
rectified!
Check hydraulic cylinder and scraper for tightness and damage.
Check surface of piston rod of hydraulic cylinder for damage.
Check well-running of ball-cock by actuating it several times.
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