System description, Water tank (mtt), M-4 water pump – MEGA Corp. MTT-OPS-1 User Manual
Page 10: Section 2 system description -1

2-1
MTT-OPS-1
13 Nov 2013
SECTION 2
System Description
Contents
WATER TANK (MTT)
The MEGA steel water tank consists of a water tunnel,
primary floor, vertical baffles, 13 Nov 2013bulkheads,
outer skins, internal piping and external piping. The
tank design is patented and known as the Magnum
Anti-surge Stabilization System (MASS)
The tank structure is built around and on top of the
tunnel super structure. The tunnel provides support
to the floor plate, pivot structure, baffles and
mounting for the water pump. The floor plates carries
loads while the baffles and bulkheads add to tank
strength and dampen water surges. External and
internal piping is also used to carry water from the
water pump to spray heads, water cannon, spray bar,
hose reel, dump bar and tank drain.
M-4 WATER PUMP
M-4 Water Pump major components and their
functions are:
1. Bracket – Main frame of the pump that allows a
pump to be bolted to the tanker and provides the
means to direct mount the hydraulic drive motor.
2. Volute Case – A “snail shell” shaped case that
encloses the impeller. It is narrow at the center
and enlarges from there to the discharge area.
3. Wear Ring – Acts as a bearing surface between
the impeller and volute case. Constructed of
bronze material.
4. Impeller – Rotating wheel attached to the shaft
that accelerates the speed of the water producing
water flow and pressure.
5. Shaft Seal – Confines grease to the inner and
outer bearing area while keeping foreign material
from entering the bearing area and seals water
inside the volute case.
Water Tank (MTT) ..........................................................2-1
M-4 Water Pump ............................................................2-1
Hydraulic Drive Motor .................................................2-2
Cab Controls (Analog) .................................................2-4
Cab Controls (Digital) ..................................................2-5
Ground Speed Sensing (GPS) Control ..................2-9
Water Cannon System .................................................2-11
Spray System .................................................................. 2-12
Dump Bar ......................................................................... 2-13
Hose Reel ......................................................................... 2-14
Tank Drain ........................................................................ 2-14
Fire Suppression System ............................................ 2-14
Water Circulation System ........................................... 2-15
Suction Loading ............................................................ 2-15