RUTHMANN Steiger TB270 - Tightening Moments; Screw Connections

9 Maintenance
9-8
RUTHMANN-Steiger
®
TB270
BA.GB.12-27409-05-07-FTA-jr
9.2 Tightening Moments
Note
The indicated tightening moments are only valid for those
cases mentioned below; they are not valid in general.
9.2.1 Screw connections
Tightening moments depend on quality of screws, thread friction and on
screw head supporting surface. The values mentioned in the table „M
A
in
Nm“ are valid for a coefficient of friction of  tot = 0,14. This corresponds to
a slightly oiled screw.
All supporting surfaces must be even and free of paint, acid, dirt and rust.
The screws must not be mounted with MoS
2
-containing lubricants.
Tightening moments of the screw fittings ( tot = 0,14)
Fitting
Screw
Tightening moment
No.
Dimensions
Quality
M
A
(Nm)
1
Chassis (see operating instructions of chassis manufacturer)
Fixation of the base frame
2.1
Base frame - chassis
M 10
10.9
64
Plastic hydraulic oil tank
3.1
3.2
3.3
3.4
3.5
3.6
Threaded plug „connec-
tion hand pump“
Threaded plug „connec-
tion secondary drive“
(optional extra) or plug
screw
Screw plug
Oil draining screw
Return filter - hydraulic oil
tank
Connection flange suction
line - hydraulic oil tank
G 1/2 A
G 1/2 A
G 1/2 A
G 1/2 A
M 8
M 8
--
--
--
--
8.8
8.8
15
±2
15
±2
15
±2
15
±2
15
±2
15
±2