Slurry Injection Tanker (2008)
My first impression of the Tractor (#8284) was: "realistic looks and clever functions", but should I buy this one ?
But after one year I decided to buy the set, with in mind to build a trailer for the Tractor.

Well, here it is: a slurry injection tanker, which can be attached to the original Technic Tractor set 8284. No Tractor modifications are needed, you only have to mount a tow-bar.

The fun part of this tanker is that the injector beams can be automatically raised and lowered when the tractor is pushed forward. This done by using the tractor's 'external spline shaft' which drives the injector beams up or down, depending on the switch selection on the tanker.

On You-Tube, a short video can be seen:

The technic specifications of the 'Slurry Injection Tanker' model are:

* Pneumatic raise / lower of the injection platform,
* Automatic raise / lower the injector beams,
* Ability to raise / lower the injector beams manually.
  (with steering wheel on the tanker) 

Other non-technic functions are:
* Slurry 'intake'  tube can be moved sideward,
* Individual pendular suspension on each side,
* Parking wheel.

The dimensions are:
* Length: 40 cm
* Width: 17 cm
* Width with lowered injector beams: 34 cm
* Height: 21 cm
* Weight: 1,3 kg

* Number of parts: 1069

* Development time: ~50 hours
* MLcad time: ~25 hours

MLcad files:
The Slurry Injection Tanker is made up of several sub models within just one mpd file.

    MLcad files zipped with WINrar

The following MLcad files are used:
* Slurry injection tanker.mpd                                            
        Slurry injection tanker.ldr
        Clutch mechanism.ldr
        Display.ldr
        Injection platform.ldr
        Mounting unit.ldr
        Parking wheel.ldr
        Pendular suspension frame.ldr
        Platform hinge.ldr
        Pump front.ldr
        Pump pneumatic.ldr
        Pump rear.ldr
        Shock absorber.ldr
        Switch.ldr
        Tank bottom.ldr
        Tank top.ldr
        Tractor8284 tow bar.ldr
        Wing connector.ldr
        Wing left.ldr
        Wing right.ldr

MLcad unofficial part list
Please navigate to the 'MLCad parts library' page on this website if you having trouble with the correct reflection of the *.mpd and/or *.ldr files within MLCad or LDview.

Probably you do miss some (or all) unofficial parts I did use within the model.

Flexible part list
All the flexible parts used in MLcad were generated with the Lsynth tool. As you might know, flexible parts are generated of many small (none lego) parts. Therefore, the MLcad part list for the flexible parts is not correct. The following flexible parts are used within the Slurry Injection Tanker model.

* Pneumatic tubes
        Pump to switch: 1x 10 cm black
        Cylinder to switch: 2x 37cm gray        
* Ribbed hose:
        3x Technic ribbed hose 11L metallic silver (# 78)
        1x Technic ribbed hose 13L metallic silver (# 78)
        3x Technic ribbed hose 24L metallic silver (# 78)

Complete part list (including unofficial parts)
The complete part list of the Slurry Injection Tanker can be found in the Excel part list inventory. Be aware that MLcad parts do not always have the same number compared to the Peeron inventory (parts catalog). Example: Technic liftarm 1x2 is known under item 169 or 41677.

Adobe PDF building instructions
The building instructions are also available in the Adobe PDF document format.
Please consider that this download takes a while due to the size of the WINrar file (~19 Mbyte). 

MLcad building instructions:
The following information will help you to build the Slurry Injection Tanker model without to much trouble.

1) Technic models nowadays uses frequent 'mounting axles' which must be 'pushed' into a sub-model part which was build separate. Within the MLcad files, these mounting axles are already in 'pushed' position. Keep this in mind when you want to mount individual sub models.

2) Start first with the 'export' of all the sub-models of the .mpd file into one directory. This gives you the opportunity to load every sub-model into the LDview program, so you can take a close look to the sub-model from every perspective.

3) Start to build all the sub-models BEFORE starting to build the 'Slurry injection tanker.ldr' file. This file starts with the main chassis of the tanker,  but acts as an assembly file for all the other sub-models as well.

4) All the sub-models can be placed as 'one unit' on the slurry injection tanker model.

5) To assure seamless operation of both injector beams it is very important how each individual ribbed hose is mounted.

b) Notice as well that both 24L ribbed hoses are mounted at the ‘tank-side’ of the rear pump.
The 13L and 11L ribbed hoses are mounted at the ‘opposite tank-side’.

LDview:
Version 3.0 of LDview will give the correct 3D views of the Slurry Injection Tanker. Previous versions had problems with multiple ldr files loaded into one mpd file.

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