Maintenance and servicing
26
NEH 100600
Procedure:
1. Switch off NEG/NEH, secure against switching on again and ensure
that it is volt-free.
2. Loosen screw (24) and remove unbalance covers (23).
3.
Disassemble unbalances type XL and
type XLs:
Screw a long screw with the same thread
into a tapped hole for the fastening screws
(24) of the unbalance cover. Put a lever be-
tween the unbalance discs and this long
screw. After loosening the locking nut (21),
the unbalances can be removed from the
shaft.
4. Remove bearing (10):
up to housing size 120: Remove circlip (40).
Starting from housing size 130: loosen screws (4) and remove
flange (3). Remove circlip (40) from flange (3).
5. Replace both bearings (10) or remove old grease (e. g. with benzine)
and smear the specified amount (see table) of new grease (according
to the maintenance plan) evenly.
6. Assembly is carried out in the reverse order.
7. Tighten locking nuts (21) and screws (4, 16) to the specified tightening
torque.