Optional Equipment. Midland Belly/Bottom Dump Trailer 4.6MB, Belly/Bottom Dump Trailer

4.11 OPTIONAL EQUIPMENT

The trailers can be equipped with several options or attachments to adapt it to special customer requirements.

1. Shed Plates:

Plywood shed plates can be mounted on the frame to prevent a build-up of material on ledges, fenders and other flat surfaces and to protect air and electrical system during loading. Always remove material from the shed plates prior to getting on the highway.

2. Push Block:

Reinforced push blocks are available to attach to the back of the frame. This block will provide a place for other equipment to push on the trailer should the need arise. The push block is not intended to be and should not be used as a lifting device.

Fig. 22 SHED PLATES

3. Axle Rock Guards:

Full width or individual rock guards are available to protect the air brake chamber as the load is being discharged. Their use is recommended when unloading at a higher rate of speed or when discharging larger rocks or clumps of material.

The Hendrickson Intraax suspensions do not need axle guards; given the location of the air pots and slack adjusters.

Fig. 23 PUSH BLOCK with Under Run Bumper

Fig. 24 AXLE ROCK GUARD

36

4. Electronic Gate Stop (E.G.S.) - Patent Pending:

The E.G.S. is a unique Midland innovation allowing the operator complete control of the clam gates from the comfort of his truck cab.

The system has four main components: Mac

Valve, Gate Stop Switch, Open/Close Push

Button Station and In-Cab Control.

a. The MAC Valve:

Allows operator complete control of the clam gates. The gates can be stopped at any position while opening or closing the gates.

b. The Gate Stop Switch:

Is mounted on the clam gate hangers. It can be adjusted for an infinite number of gate openings. When the gates open, the stop pins (located on clam doors) contact the stop switch and stop the movement of the gates at the preset opening (location). The in-cab control allows the operator to override the gate stop and fully open his gate for clean out.

Fig. 25 ELECTRONIC GATE STOP (E.G.S.) c. A Push Button Station:

Is located at the rear on the driver side of the trailer. The gates can be opened and closed with this control and will override the gate switch.

d. The In-Cab Control:

Consists of an on/off toggle switch, an open and override switch (button) which control all the E.G.S. functions. The toggle switch must be in the on position for any of the E.G.S. controls to function (including push button station). The open switch (button) opens the gate until the gate pin makes contact with the gate switch and stops the gates.

The Override Switch (button) bypasses the gate stop switch and allows gate to be fully opened. This button also allows operator to jog gates to desired opening. The "Off" position on the toggle switch closes the gates. While closing the gates moving the toggle switch to the "On" position stops the gates.

Fig. 25 ELECTRONIC GATE STOP (E.G.S.)

Fig. 25 ELECTRONIC GATE STOP (E.G.S.)

37

4.11 OPTIONAL EQUIPMENT (cont'd)

4. Cover:

A solid or mesh vinyl cover is available to cover the load in the trailer. It prevents the material from blowing out of the trailer.

It is recommended that a cover of some kind be used whenever transporting a load on a public highway.

Several different models of covers are available; Flip

Tarp or Gravel Guard Slider

Tarp with electric, air or manual crank options.

Fig. 26 COVERS

Flip Tarp

38