System description – MEGA Corp. MHT175-CAT777-OPS-1 User Manual
Page 9

MHT175-CAT777(G)-1
1 Aug 2012
SECTION 2
System Description
Contents
2-1
Coal Hauler Body (MHT) ………...…..... 2-1
MHT Axle & Wheel Group ……............. 2-3
Hitch Deck & Fender ………………....... 2-3
MHT Brake System ……......................... 2-4
MHT Door System ………….………….. 2-6
MHT Lube System ……………………… 2-7
MHT Lighting System …………….......… 2-7
COAL HAULER BODY (MHT)
The MEGA 175 ton coal hauler is modular in
construction and comprised of four major sub
assemblies. The sub assemblies are the
gooseneck, lower hopper, side walls and the
rear bogie.
Gooseneck Assembly
The assembly is constructed of square steel
tubes, plates and channels. It contains an 18”
diameter hitch ball designed to be captured in
the tractor hitch socket allowing the trailer to
be towed. The compartment formed by the
gooseneck plating is used for mounting and
routing of all brake, door and electrical system
components. Components can be accessed
through the manhole covers mounted on the
upper deck.
Lower Hopper Assembly
The assembly is constructed of square steel
tubes, bolsters and plates. It provides for
mounting of door assemblies, hydraulic
actuators and lubrication blocks. The bolster
passage ways provide for the routing and
protection of hydraulic brake and door hosing
as well as electrical cabling.
Side Wall Assembly
The walls are constructed of steel tubes and
plates. They provide for mounting of
clearance lights, side boards and load markers.
REAR VIEW
TOP VIEW
SIDE VIEW