6
Inspection/maintenance
Maintenance of AR adapter with slip clutch
Assembly and Operating Instructions – Explosion-Proof Gear Units
115
The following figure shows the rough slip torque adjustment:
[9]
[10]
[11]
[14]
Z
Z
[15]
[12]
AR71 – 115
AR132 – 195
[13]
18014398528249355
[9]
Marking
[13] Z number of slots in the slotted nut
[10] Multi-tang washer (cams)
[14] Mark on the driving disk
[11] Slotted nut
[15] Slotted nut
[12] Z Number of cams of the lock
washer
Proceed as follows:
ü
The motor/variable-speed gearmotor is disconnected from the adapter.
1. Loosen the locking screw [1] and pull the friction hub [8] from the shaft end.
2. Clamp the friction hub [8] in a vise.
3. For AR 71 – 115 adapters, proceed as follows:
•
Loosen the lock washer [10].
•
Loosen the slotted nut until you can easily adjust the slip clutch manually.
•
Mark this position of the slotted nut [11].
4. For AR 132 – 195 adapters, proceed as follows:
•
Loosen the clamping screw at the slotted nut [15].
•
Loosen the slotted nut until you can easily adjust the slip clutch manually.
•
Mark this position of the driving disk [14].
5. Loosen the slotted nut and remove the cup springs [6]. Not the sequence of the
cup spring (see "Sequence of the cup springs" (→
NOTICE
Destruction of the friction lining surface by lubricants.
•
Prevent lubricants from getting on the friction surface.
6. Inspect the friction linings [5] (see
"
Inspecting the friction lining" (→
)). Re-
place them, if they are worn.
7. Inspect the cup springs [6]. Replace them, if cup springs are burned out.
8. Reassemble the cup springs [6] in the same sequence as you disassembled them.
9. Install the slotted nut up to the mark.
10. Measure the slip torque and adjust it. Proceed as follows to do so:
•
How to adjust the slip torque using a torque wrench:
– Connect the torque wrench with the hub bore.
24804134/EN – 05/2018