Claas LEXION 480, Repair Manual

Page: 878 / 1018

9.5.12
RHB LEXION 480 - 188 678.1
Hydraulic cylinders – High-pressure hydraulic circuit
Installing the cutterbar hydraulic cylinders
1. Bolt the cylinder to the drive axle. Connect the
hydraulic line.
2. Connect the cable to the position indicator
potentiometer.
3. Insert the pins at the yokes. Hang in the cylinders
using the pins. Secure the pins with split pins.
4. Fill in hydraulic oil at the filler plug (S) of tank (T)
– see page 9.2.3, Filling instructions when
changing the hydraulic oil .
5. Operate the cylinders several times to ensure the
air has been expelled and that there are no leaks.
(Fig. 24)
Adjusting the cutterbar hydraulic cylinders
Adjust the compression springs of the re-fitted cylinder
with the cutterbar attached.
The reel should be in a middle position.
Lower the cutterbar until the skids are about 100 mm
from the floor.
Adjust the spring pre-tension on the cheese-head
screws (W).
Adjustment of screws (W):
Increasing the distance = turn in the screws
Reducing the distance = turn out the screws
The gap (Y) between the cylinder base plate and the
washer with the nut should be
5 – 10 mm .
This setting applies to cutterbar cylinders with a
mechanical lock (Fig. 25) and for cutterbar cylinders
with a hydraulic lock (Fig. 26).
CAUTION!
Ensure that all compression springs are
adjusted evenly!
(Fig. 25, 26)
24
25
W
Y
30291
26