Cargo Floor B.V.
Byte 14
NL-7741 MK COEVORDEN
Phone:+31 (0)524-59 39 00
www.cargofloor.com
Replacing a cylinder CF500 SL-2 / CF500 SL-C
10-12-2013
/ NL 6 van 16
Pull in the cylinders
To prevent the piston rod getting damaged in the stroke area during the repair the all the cylinders should be
pulled in fully before starting (fig. 2). In order to achieve this it is necessary to block the switching of the control
valve. Let cylinder 1 (left cylinder) run out to the front and switch off the system. Then take out the roll pin or
bolt in the bottom of the front command lip. Next, the threaded rod can be bent slightly downwards and the steel
spring on the threaded rod can be removed from the end of the threaded rod (fig.1). Turn the system back on
and the cylinders will eventually pull in fully and at the end of the ingoing stroke the pressure relieve valve will
be activated. At that time the system must be turned off. For your safety it will be advisable to disconnect the
hoses between pump and system and disconnect the electrical connections.
Demounting the pipes
Place a drip tray under the coupling that should be loosened and collect the leaking oil.
Unscrew the coupling screws of all 4 the pipes of the two common rails, with an open-end spanner 36 mm (fig.
3 t/m 6). If the screw-in coupling is also turning, this can be prevented with an open-end spanner 32 mm. Put
marks on the common rails, so you know how the common rail must be re-assembled. The common rails are
identical but are mounted mirrored!!!!!
Fig. 1
Fig. 2
Fig. 3
Fig. 4
