FLENDER RUPER RBS, Руководство по сборке и эксплуатации, Страница: 48 / 78

Servicing
8.3 Replacing wearing parts
48 Edition 09/2022 M3602-01en
WARNING
Risk of injury
When you are pressing out the bolts (4), grease can escape under high pressure. If bolt (4)
suddenly works loose, fragments can become detached and fly through the air at high
speed.
• Wear safety goggles.
Procedure
1. Remove the hexagon head screws (11) and the washers (8).
2. Clean the tapped holes of the bolts (4) until they are free of all residues.
3. Fill the tapped hole of a bolt (4) to 90 % with commercially available machine grease
(e.g. Fuchs Renolit H443-HD-88).
4. Wrap screw (11) in Teflon tape or Teflon sealing cord.
5. Place a washer (8) as an axial locking element over screw (11).
6. Insert the screw (11) with the washer (8) into the bolt (4) and tighten manually by two to
three turns.
7. Using a spanner, continue turning the screw (11) slowly into the thread so that the
grease is pressed evenly through the cross bore between the bolt (4) and the bolt fitting
hole of the coupling part 1 (1) and/or 3 (3).
The bolt (4) is released suddenly and makes a loud noise.
8. Repeat the process in the order specified for all the installed bolts (4).
8.3.4.3 Potential problems when pressing out bolts (4) with grease
8.3 Replacing wearing parts
Problem Cause Possible solutions
Bolt (4) is not released despite
the fact that the screw is fully in-
serted. Pressure is too low to release
the bolt (4). • Use a longer screw (11) (min-
imum strength class 8.8).
• Fill more grease into the
tapped hole of the bolt (4).
Bolts (4) are difficult or im-
possible to release. Liquid locking agent for screws
(11) has sealed the cross bore. Clean the tapped hole and the
cross bore of the bolt (4).
Grease is escaping. The bolt (4)
is not released. The tapped hole is not suffi-
ciently sealed. 1. Remove the screw (11).
2. Seal the screw (11) again
in Teflon tape or Teflon
sealing cord.
3. Press out the bolt (4)
again with grease.
8.4 Removing coupling part 1 (1) or 3 (3)
8.4 Removing coupling part 1 (1) or 3 (3)
The procedure to be followed depends on the existing shaft-hub connection: