5.9 Connecting components.................................................................................................... 87
5.9.1 Gear units with mounted components ............................................................................... 87
5.9.2 Connecting the cooling coil................................................................................................ 88
5.9.3 Connecting the heating element........................................................................................ 88
5.9.4 Connecting the oil-level monitoring system........................................................................ 89
5.9.5 Connecting the Pt 100 resistance thermometer .................................................................. 89
5.9.6 Connecting a speed encoder .............................................................................................. 89
5.9.7 Electrical connections ........................................................................................................ 90
5.10 Tightening procedure......................................................................................................... 90
5.10.1 Introduction....................................................................................................................... 90
5.10.2 Bolt connection classes ...................................................................................................... 91
5.10.3 Tightening torques and preload forces................................................................................ 92
5.11 Final work.......................................................................................................................... 93
6 Commissioning .................................................................................................................................... 95
6.1 Measures prior to commissioning....................................................................................... 95
6.1.1 Gear unit with backstop ..................................................................................................... 95
6.1.2 Gear unit with auxiliary drive ............................................................................................. 96
6.1.3 Gear units with cooling coil................................................................................................ 96
6.2 Measures during commissioning ........................................................................................ 97
6.2.1 Heating ............................................................................................................................. 97
7 Operation............................................................................................................................................. 99
7.1 Operating data .................................................................................................................. 99
7.2 Irregularities in operation................................................................................................... 99
7.3 Taking the unit out of service ........................................................................................... 100
8 Servicing ............................................................................................................................................ 101
8.1 General maintenance information.................................................................................... 101
8.2 Maintenance schedule ..................................................................................................... 102
8.3 Maintenance and servicing work...................................................................................... 103
8.3.1 Cleaning the venting screw .............................................................................................. 103
8.3.2 Checking the oil temperature ........................................................................................... 104
8.3.3 Replacing the backstop .................................................................................................... 104
8.3.4 Filling the backstop with oil.............................................................................................. 105
8.3.5 Filling the overrunning clutch of the auxiliary drive with oil .............................................. 105
8.3.6 Checking the friction linings of the torque-limiting backstop............................................. 106
8.3.7 Checking the auxiliary drive ............................................................................................. 107
8.3.8 Checking the speed monitoring of the auxiliary drive........................................................ 107
8.3.9 Measuring the vibration levels of the rolling-contact bearings........................................... 107
8.3.10 Cleaning the fan and gear unit ......................................................................................... 108
8.3.11 Checking the cooling coil ................................................................................................. 108
8.3.12 Inspecting the shrink disk................................................................................................. 109
8.3.13 Check that all of the fastening bolts are tight.................................................................... 110
8.3.14 General inspection of the gear unit .................................................................................. 110
8.3.15 Final work........................................................................................................................ 110
8.4 Possible faults.................................................................................................................. 110
Table of contents
Assembly and operating instructions A5051en
Edition 06/2020 7
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