Bosch EPS 708 - Tightening Torques; 8.1 Fastening Parts; 8.2 Coupling Halves; 8.3 Drive Coupling

1 689 989 067 2017-12-08| Robert Bosch GmbH
64 | EPS 708 | Tightening torquesen
8. Tightening torques
8.1 Fastening parts
Tightening torques based on strength class:
Thread 5.6 6.8 8.8 10.9
M 5 5 +2
M 8 14 +3 23 +3 32 +5
M 10 45 +8 65 +8
M 12 80 +8 125 +10
M 14 90 +10 135 +10
M 16 135 +10 210 +10
8.2 Coupling halves
On the common rail pump camshaft
Thread Bevel gear
diameter
Tightening torque
[Nm]
M 12 17 60 +10
M 14 x 1.5 20 80 +10
M 18 x 1.5 25 130 +10
M 20 x 1.5 30 200 +20
M 24 x 1.5 35 250 +50
M 30 x 1.5 40 300 +50
8.3 Drive coupling
8.3.1 Drive coupling 1 686 401 024
Tightening torques [Nm]
EPS side 95 +2
Pump side 35 +2
8.3.2 Tightening torques for clamping screws
Size Tightening torque [Nm]
M 8 x 65 DIN 912-12.9 15 +2
M 10 x 80 DIN 912-12.9 30 +2
M 12 x 80 DIN 912-12.9 60 +5
8.4 Permitted coupling torques
Speed Unit Specification
Coupling torque:
Briefly approx. 2 min.
Continuous operation
rpm
Nm
Nm
0 to 850
100
65
1500
68
44
2500
37.5
25