Siemens FLENDER K SH Series - Shutting Down the Gear Unit

83 / 109
BA 5846 en 05/2015
7.3 Shutting down
• Switch off the drive unit.
DANGER
Danger to life through switchedon installation
To carry out work, the gear unit and the separate oilsupply unit must always be stopped.
The drive unit must be secured against being switched on accidentally (e.g. by locking the key switch
or by removing the fuses from the power supply).
Attach a notice to the ON switch stating clearly that work is in progress on the gear unit.
• Close the stop valves in the coolant in and outflow pipes in case of gear units with water cooling coil.
If there is a risk of freezing, drain the water from the cooling coil.
• During a shutdown period no longer than 6 months, start the gear unit approximately every 3 weeks
and allow it to run for 5 to 10 minutes.
• During a shutdown period exceeding 6 months, the gear unit must be treated with preservative agent
as described in items 7.3.1 and 7.3.2.
7.3.1 Interior preservation for longer disuse
Depending on the type of lubrication and/or shaft sealing, the following types of interior preservation can
be applied.
7.3.1.1 Interior preservation with gearunit oil
Gear units with splashlubrication systems and contacting shaft seals can be filled with the type of oil
already filled in up to a point just below the air filter or wetair filter.
The duration of this preservation depends on the age of the shaftsealing rings and the oil.
Note
After a preservation period exceeding 36 months the radial shaftsealing rings must be replaced before
startup.
NOTICE
Material damage
Risk of damage through insufficient lubrication through undetected leakage.
The leaktightness of the gear unit must be checked regularly every 4 weeks.
• Remove any dirt in the area of the inspection and/or assembly cover or that of the marked oilfilling
point.
• Undo and remove the fastening screws of the inspection and/or assembly cover.
• Remove the cover with the seal from the housing (the seal must not be damaged, it will be used again).
• Unscrew the air filter with the reducing screw or the wetair filter.