Claas RU 450, Руководство по ремонту

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RU 450 - 297 925.0
General information
Tapered ring connections are a secure connection
also during the transfer of power from the drive
mechanism to the shaft and the other way around
during
Disassembly:
After loosening the axial, loosen the tapered ring
connections with a powerful blow using a stroke
pipe.
ATTENTION! The inner diameter of the stroke
pipe must be wide enough to grip over the tapered
ring.
Assembly:
It is important during the assembly that the shaft,
hub, flat keys, and tapered rings are thoroughly
cleaned, treated with semi-fluid lubricant NLGI
Class 00 (Shell Retinax G, for example), and tigh-
tened with the stated torque in the correct order of
assembly.
ATTENTION! Do not assemble parts with
heavy grease.
6. Self-locking screws (with microencapsulated
adhesive)
Replace the self-locking screws, for example Ver-
bus Plus/Allen-Plus among others, during each
assembly. They can be used in exceptional cases
up to three times. Always use the stated torque.
Always quickly tighten the self-locking screws with
the microencapsulated adhesive to the stated tor-
que. Always completely unscrew the screws
quickly. The self-locking screws should
never
come in contact with sealing compound (such as
”Epple 33” or others).
Screws with liquid screw fastener may only be
used instead of self-locking screws in instances
where the connection can be heated to approx.
200
°
C when loosening the screws. Also pay atten-
tion here to the quality class of the screws (8.8/
10.9 among others).
Self-locking screws with microencapsulated adhe-
sive can only be used where the operating tempe-
rature does not 90
°
C.
The absolute capacity of these screws is reached
at +20
°
C after 24 hours. The complete hardening
can be lessened by heating them up (for example,
at +70
°
C for 15 minutes).
7. Liquid screw fastener (Delo-ML 187 / Loctite
242, for example).
Only use liquid screw fastener where the manu-
facturer allows.
Correct use:
Metal connections which are to be used with liquid
screw fastener must be absolutely grease-free.
Carry out the cleaning with the ”activator” which
belongs to the workshop set.
The metal surfaces must be dried by the activator
before applying the liquid screw fastener. Especi-
ally in the blind holes there should be no more
remains from the activator (cleaning material).
Apply a small amount of the liquid screw fastener
(drops) when possible only in the inner threads (of
the nut) when fastening. For blind holes, apply
only to the beginning of the thread approx. 1d (d=
nominal–
∅
of the screw). The same for all other
over-length screws.
Note : In the case that the liquid screw fastener is
applied to the bolt or on the beginning of the
threads, it will spread out when threaded out over
whole length of the thread and makes the torque
separation too high when loosened – danger of
breaking the screw.
Threaded connections which are secured with
liquid screw fastener are easier to separate when
heated to approx. 200
°
C.
8. Correct assembly of the lock collars
Lock collars are fastened by turning the eccentric
ring over the bearing inner ring on the shaft.
Before fitting, it is advisable to apply a semi-fluid
lubricant NLGI Class 00 (Shell Retinax G, for
example) to the inner ring and the shaft so that the
bearing can be easier disassembled at a later
time.
Always moderately strike the eccentric ring in the
shafts direction of rotation and fix with the set
screw. Strike in the opposite direction of the shafts
direction of rotation to loosen the bearing of the
eccentric ring.
9. Correct assembly of the adapter sleeve bea-
ring
Adapter sleeve bearing does not require a speci-
ally machined rolling bearing seat. They can be
assembled on every rifled or polished shaft. The
resulting advantage from this is that the shaft can
be shifted on any axis and therefore can be ali-
gned well.
Install the adapter sleeve bearing to the corre-
sponding cone-shaping inner ring. Clean the
expansion pin and shaft before fitting and test the
smooth running of the expansion pin nut so that
the expansion pin does not turn onto the shaft
during tightening.
Loosening:
First of all, loosen the unsecured expansion pin
nut with only a couple of turns (threads must com-