3329 Manual
KOBELT MANUFACTURING CO. LTD
Rev A
MNL-3329.docx
11
4
C
OMMISSIONING
4.1
A
DJUSTMENT
The valve is adjusted at the factory and, as such, will not require any further adjustment after
installation.
4.2
F
UNCTIONAL
T
EST
Do not put the unit into service until it has been
tested. The Functional Test should be carried out
while the equipment is in a secure state.
After installation, test the control valve and verify that it operates the brakes over the full pressure range.
Cycle the pressure to maximum and back to zero. Verify that the pressure to the brakes follows the handle
command gradually without jumps or delays.
5
M
AINTENANCE
5.1
P
REVENTATIVE
M
AINTENANCE
•
Quarterly (4 times per year)
o
Inspect unit for air leaks
•
Bi-annually (once every two years)
o
Lubricate seals
5.2
B
YPASS
O
VERRIDE
The 3329-EP version with emergency bypass
functionality is provided with a manual override switch
as shown in figure 5. This switch can be used to
manually set the valve to the electro-proportional pilot
source in the event that the bypass solenoid coil fails.
Use a flat head screw driver and turn the red plastic
screw ¼ turn clockwise to set to the ‘Override’ position.
Ensure that the bypass switch is only used in extreme
cases and that it is reset to the normal position when
complete.
Loss of braking:
Failure to reset the manual override to the normal position may result in a
sudden loss of braking and result in an accident.
Figure 5: Solenoid Override
