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4.4 Tightening torques
Adhere to the following tightening torques when installing or repairing the
pump.
Pump with base plate, machine, or vehicle
18 Nm ± 1 Nm
Metering device with QLS pump
9 Nm ± 1 Nm
Pump element with pump housing
25 Nm ± 2 Nm
Outlet fitting on metering device
screw-in type
17 Nm ± 1 Nm
plug-in type
12 Nm ± 1 Nm
Indicator pin fitting
18 Nm ± 1 Nm
Closure screw (outlet)
15 Nm ± 1 Nm
Closure screw (piston)
18 Nm ± 1 Nm
Coupling nut on outlet fitting
Plastic tube
10 Nm ± 1 Nm
Steel tube
11 Nm ± 1 Nm
Cover of pump housing
1.6 Nm + 0.8 Nm
Reservoir with pump housing
7 Nm + 1 Nm
4.5 Necessary lubricant consistencies in case of intermit-
tent low level signal
The following lubricant consistencies have to be complied with in
order to ensure correct functioning of the intermittent low level
indication.
NLGI class
Temperature
NLGI class
Temperature
0.5
≤ + 20 °C
1.5
≤ + 50 °C
1.0
≤ + 40 °C
2.0
≤ + 70 °C
* maximum admissible pump operating temperature
The intermittent low-level indication is not suitable for
lubricants ≤ NLGI class 0.
4. Technical data
