OPERATING INSTRUCTIONS 6015 / RH40E Inspection and servicing Track tensioner
Function
Design
The tensioning system is under permanent pressure of ca. 100 bar / 1450 psi which keeps both tracks permanently tensioned. Pressure losses are compensated as soon as the engine has been started. Retensioning is not required.
The tracks are tensioned with the help of the hydraulic pressure created during travelling. Fig. 3-90:and Fig. 3-91: show parts of the tracks and the tensioner:
For cleaning and servicing work, the tracks can be slackened. To do so: stop the engine open both pressure limiting valves (6, Fig. 3-91:) to slacken the tracks. After the work, screw down the pressure limiting valves (6) to the limit stop.
Fig. 3-90:
Pos. 4 5 6 9 10 11 12 13 14
Function Pressure accumulator Pressure cylinder Pressure limiting valve Mini- measuring port Support roller Drive sprocket Track roller Crawler track Idler
Techncal data Track tensioning pressure Pressure limiting valve Gas pressure in pressure accumulator (nitrogen filling pressure)
BA RH40E(3 725 069.00)-EN
Approx. 100 bar / 1450 psi 250 bar / 3626 psi
Fig. 3-91:
The pressure-limiting valves (6) are preset to a pressure of 250 bar / 3626 psi and sealed in this position. The lead seal must not be removed and the pressure setting of 250 bar / 3626 psi must not be changed. The track tensioners are maintenance-free.
80 bar / 1160 psi
3-85
