Gear unit type Y
[mm] [inch]
QH.K3 1.4 0.055
QH.K4 1.4 0.055
QH.L3 1.4 0.055
QH.L4 1.4 0.055
QH.M3 1.4 0.055
QH.M4 1.4 0.055
Lubricants
General specifications for lubricants
Parameter Specification
Initial gear oil cleanliness -/15/12 (or better) according to ISO 4406
Gear oil: maximum allowable water content
(Karl Fischer) [%]
0,05
NLGI-Grade of grease 3
2 or 3, for labyrinth seals and lower bearing of
the LSS
Nominal temperature of the gear oil in the oil
bath, during operation [°C] ([°F])
60 - 80 (140 - 180)
Maximum volume concentration of corrosion in-
hibitor in the gear oil [%]
2
Working temperature range for corrosion inhibi-
tor [°C] ([°F])
4
15 - 70 (60 - 158)
General specifications for gear oil per viscosity grade
Viscosity grade AGMA SUS/100°F
ISO VG150 4 690
ISO VG220 5 1100
ISO VG320 6 1600
ISO VG460 7 2300
Additional gear oil specifications (heater)
Parameter
Specification
Minimum gear oil temperature for startup Refer to the type plate
Gear oil temperature at which the heater must
stop [°C] ([°F])
15 (60), unless the certified drawing shows an-
other specification. Then, refer to the certified
drawing.
13.14
13.14.1
13.14.2
4
Make sure to store the gearbox in this temperature range for at least 5 days after each fill of corrosion
inhibitor. Afterwards the conditions for storage apply. Refer to
Ambient conditions for storage
on page
53
Technical data
IM_405_002_EN
61
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