4
Mechanical installation
Accessory equipment
Assembly and Operating Instructions – Gear unit series R..7, F..7, K..7, K..9, S..7, SPIROPLAN
®
W
77
4.13.3
Gear unit heater for gear unit series R..7, F..7, and K..7
An oil heating can be required in order to allow for a smooth startup in the event of a
cold start at low ambient temperatures. An oil heating is available with an external or
an integrated thermostat depending on the gear unit design.
The heater is screwed into the gear unit housing and is controlled via a thermostat.
The limit temperature of the thermostat below which the oil must be heated, is set de-
pending on the respective lubricant.
The following figure shows a gear unit with heater and external thermostat:
[1]
[2]
2060553483
[1]
Thermostat
[2]
Heater
INFORMATION
For further information regarding gear unit heaters, refer to the addendum "Gear unit
heaters for gear unit series R..7, F..7 and K..7" to the operating instructions "Gear
unit series R..7, F..7, K..7, K..9, S..7, SPIROPLAN
®
W".
21932786/EN – 05/2015