MEGA Corp. MSC-OPS-1 - Manual (Page 13)

MSC/MST-OPS-1
31 Dec 2013
SECTION 2
System Description
2-4
ELECTRO-PNEUMATIC]
Multi-function control box that is mounted in the
vehicle cab to control all water tank functions.
Controls are available for the water cannon,
intermittent spray, water pump, work lights, foam
suppression, adjustable nozzle, system, spray heads,
spray bar, gravity dump bar, and tank drain valve. The
control box also provides indications of tanker water
level and a system fuse holder. The cab controls
requires 24 VDC vehicle power to operate.
The control functions operate as follows:
Control Function
Joystick Sends command signals to the
logic box (electric water cannon)
or hydraulic control valve assem-
bly (hydraulic water cannon) to
move the water cannon left,
right, up and down.
TIMER ON Sets ON time (variable adjust-
ment 5-100 sec) of selected spray
heads and dump bar when the
timer switch is in the intermittent
position
TIMER OFF Sets OFF time (variable adjust-
ment 5-100 sec) between timer
cycles of selected spray heads
and dump bar when the timer
switch is in the intermittent posi-
tion.
PUMP Routes vehicle hydraulic system
pressure and flow to the water
pump hydraulic drive motor.
MONITOR Opens the water cannon BFV.
LIGHTS Provides power to work lights.
FOAM Open or closes the foam concen-
trate tank in-line control valve.
INTERMITTENT/
CONSTANT Activates or deactivates system
timer function.
AUX Reserved for specialized func-
tions.
ADJUSTABLE
NOZZLE Adjusts water cannon nozzle
from FOG/FAN to STREAM.
AUX Reserved for specialized func-
tions.
WATER LEVEL Indicates tank water level.
SYSTEM Provides power for all cab control
functions.
LT BUMPER Opens or closes left front bumper
spray head.
LT VSS Opens or closes left vertical side
spray head.
LT REAR Opens or closes left rear spray
head.
LT CENTER Opens or closes left center rear
spray head.
RT CENTER Opens or closes right center rear
spray head.
RT REAR Opens or closes right center rear
spray head.
RT VSS Opens or closes right vertical side
spray head.
RT BUMPER Opens or closes right front
bumper spray head.
DUMP BAR Opens or closes dump bar BFV.
DRAIN Opens or closes tank drain BFV.
Control Function