OPERATING INSTRUCTIONS RH 400 Inspection and servicing Techncal data
Track tensioning pressure
Pressure-accumulator inspection regulations ca. 90 bars
Pressure limiting valve
330 bars
Gas pressure in pressure accumulator (nitrogen filling pressure)
72 bars
The following regulations are applicable only in Germany. Please observe the relevant regulations in force in your own country.
Function
Extract from the German regulations
The tensioning system is under permanent pressure of ca. 90 bars which keeps both tracks permanently tensioned. Pressure losses are compensated as soon as the engines have been started. Retensioning is not required.
The accumulator vessel must not be subjected to welding, soldering or any other mechanical work. Work on systems containing accumulators (repairs, connection of pressure gauges or similar work) may be carried out only when the fluid pressure has been relieved.
For cleaning and servicing work, the tracks can be slackened. To do so: Ü stop the engines Ü open both pressure limiting valves (7, Fig. 3-121:) to slacken the tracks. Ü After the work, screw down the pressure limiting valves (7) to the limit stop.
Extract from the German acceptance regulations Hydraulic accumulators are pressure vessels and are therefore subject to the "Druckbehälterverordnung (DruckbehV)" [Pressure Vessel Regulations]. Their installation, equipment and operation are governed by the "Technische Regeln Druckbehälter (TRB)" [Technical Rules for Pressure Vessels]. The pressure vessels of hydraulic accumulators are classified by the admissible operating pressure p in bars, the capacity l in liters and the product of pressure and capacity p x l. Depending on the class to which the accumulator belongs, the following inspections are mandatory:
Fig. 3-121:
The pressure-limiting valves (7) are preset to a pressure of 330 bars and sealed in this position. The lead seal must not be removed and the pressure setting of 330 bars must not be changed. The track tensioners are maintenance-free.
3-95
BA RH400(3 659 450.00)-EN
