Claas LEXION 480, Руководство по ремонту

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9.5.34
RHB LEXION 480 - 188 678.1
Hydraulic cylinders – High-pressure hydraulic circuit
Assembling the reverser drive hydraulic cylinder
1. Insert the seal (6) and the dirt scraper (7) into the
cylinder head (5).
2. From serial no. …:
Insert a dual seal ring into the ring groove of the
cylinder head (5).
Up to serial no. …:
Insert the oiled O-ring (2) and the back-up ring (3)
into the groove of the cylinder head (5).
3. Guide the complete cylinder head (2 to 7) on
the ram rod (9) and slide it into the hydraulic
cylinder (1).
4. Twist the complete cylinder head (2 to 7) until the
bore in the groove of the cylinder head lines up
with the slot in the cylinder.
Hang in the greased securing wire (4) with its
hook in the cylinder head bore and turn the
cylinder head. The securing wire is pulled into the
groove.
For every assembly of the cylinder, use a new
securing wire.
5. Screw the stop bolt M 12 x 30 and the lock nut to
the ram rod.
(Fig. 84)
Installing the reverser drive hydraulic cylinder
1. Using the M 8 x 65, the M 12 x 25 and the
M 12 x 45 hex. bolts with the eccentric, bolt the
cylinder to the support arm and the bracket.
2. Screw the M 12 x 45 bolt with the eccentric to the
cylinder and adjust so there is some play.
3. Adjust the spring tensioner:
Tighten the nut until the end of the bolt thread.
4. Setting the hydraulic cylinder:
– Press the drive motor down into the gear.
– Pull out the ram.
– Adjust and lock the bolt (B) so there is 0.5 mm
of play
(1/4 turns) up to the stop.
(Fig. 85)
84
85