Technical user manual SLC
A-control
www.cargofloor.com
www.cargofloor.com
Page 20
Version 01 / July 10
th
, 2017
TROUBLESHOOTING A-CONTROL VALVE
In the event of the failure of the Cargo Floor system to operate (in the correct manner) when used in
accordance with the operating instructions carry out the following checks:
Malfunction system
Concerns part
Cause
Solution
1.Does not operate
No oil flow control
valve
PTO
Not switched on
Switch on PTO
Quick coupling
Blockade
Check couplings / mount
correctly
2. Does not operate
There is oil flow
control valve
Pressure control
valve
Polluted
Clean / replace, attention:
do
not
open the pressure
control valve in parts
Operating handle
Is in the middle position
Move the handle in the
direction of
loading/unloading
3. Individual
movement is
difficult and/or
incorrect with a full
trailer
Pressure control
valve
Tipper valve
Turn tipper valve in correct
position
Pressure control valve
pulling vehicle max.
pressure too low
Measure max. pressure/
adjust pulling vehicle
Return oil has
restrictions
Measure pressure M2,
remove restrictions
Capacity of the
system is
insufficient.
Too much load
Unload part of load with
crane
Pollution between the
Floor profiles
Clean
Frost
Thaw
4. Individual
movement is
incorrect when
unloading
With a full and empty
trailer
Valve in cylinder
head 1 or 2
Pollution prevents a
good connection
Remove pollution
Broken valve spring
Replace spring
Valve seat in
cylinder head 1 or
2
Valve seat has loosened
*Replace / fasten valve seat
Common rail
cylinder rod side
Stop in the common rail
has loosened
Fasten stop / replace
common rail
Common rail mounted
the wrong way around
Mount common rail
correctly
5. Switching is
difficult or goes not
at all. 3 Cylinders
are fully retracted or
fully out.
a. Threaded rod
Adjustment incorrect
Adjust correctly, attention:
determine cause. See: b.
and c.
Switching spring broken
Replace spring, attention:
determine cause. See: b.
and c.
b. Switching
plunger
Stroke > 12 mm. [0.5”] -
> threaded rod loose,
spacer loose
Screw in threaded rod / bolt
fully.
c. moving cross
member
Slanting caused by loose
profiles
*Replace screws and
provide them with a thread
locking product and check
the rod bearing.
d. Switching choke
Polluted
* Clean choke
6. Other
malfunctions
Please contact your trailer builder or Cargo Floor, keep the system number at
hand.
*Contact your trailer builder or Cargo Floor B.V. for a repair advise.