Technical
111
C2500CB-OM-EN-16
Note
The main relief pressure is set at: 262 Bar / 3800 PSI
7.2 Valve Chest Pressure Settings
In order to check the valve chest pressure settings, the following steps should be taken:
1. Park the truck in an area with
adequate space and headroom to
operate all mast functions through the
full extent of their range.
2. Lower the mast fully and tilt the mast
fully forward.
3. Switch off the engine and remove the
key from the ignition.
4. Open the bonnet from the right hand
side of the truck to gain access to the
valve chest pressure test point (
A
).
5. Wait until all components in the vicinity
of the test point are cool enough to
touch before proceeding.
6. Clean and dry the area around the test point thoroughly.
7. Unscrew and remove the cap from the test point and attach a pressure gauge -
capable of reading pressure up to 300 bar (4400 PSI)
.
8. Fully extend or retract the cylinder(s) of the function to be tested. For example
when checking the tilt-back pressure the mast must be tilted back as far as it
will go.
9. Press the accelerator pedal down fully and push/pull the lever on the section to
be tested (in the example of testing the tilt back pressure the lever will be pulled
back).
10. The reading on the gauge indicates the pressure setting on one particular port
on the valve chest.
Example:
To check the lift pressure raise the mast to full height. Press the
accelerator pedal down fully and pull the lift lever (joystick if fitted) back. The
pressure gauge will display the setting on the lift port.
Warning
Ensure that the engine is switched off until the pressure gauge has been
attached.
Ensure there is adequate space and headroom to operate each of the
hydraulic mast functions through the full extent of their range.
A