FLENDER ARPEX ARS-6 - Fitting; Demounting

22
ARPEX 8704 en
Operating instructions 01/2019
6.7.1 Fitting
Before fitting, the halfshells must be removed from the hubs and the holes carefully cleaned and
degreased using a suitable degreasing agent.
Observe the manufacturer’s instructions for handling the solvent.
Do not interchange halfshells.
Check that the number markings (markingpunch number) at the side of the hub core
are identical (see Fig. 14).
Place the clamping hubs on the shaft ends. The tension screws in the halfshell must first be evenly
screwed up only handtight.
Ensure the halfshells are evenly seated. Check the gap size is even and, if necessary,
adjust.
Then, using a torque wrench, tighten the tension screws alternately in at least 3 passes (see table 4).
First pass: Tighten the clamping bolts to 30 % of the tightening torque (see table 4).
Second pass: Tighten the clamping bolts to 60 % of the tightening torque (see table 4).
Third pass: Tighten the clamping bolts to 100 % of the tightening torque (see table 4).
Table 4: Tightening torques for split clamping hubs with halfshell
Bolt
Quality
Tightening torque
ISO 4762 (DIN 912) 30% 60% 100%
Thread [Nm] [Nm] [Nm]
M6
10.9
4 8 12
M8 9 18 30
M10 18 36 60
M12 30 60 100
M14 48 96 160
M16 75 150 250
6.7.2 Demounting
Demounting is done in reverse order of fitting. Here the tension screws must be undone alternately in at
least 2 to 3 passes.
Risk of injury from falling coupling parts.
Secure all coupling parts before undoing the clamping bolts.