Diamond T Machinery "M"

This vehicle was officially known as the Lorry, 4-Ton, 6-Wheel, Machinery. It was built on the 201' wheelbase undercarriage. Otherwise known by the name Machinery Lorry Type QMG-MT. This vehicle is used to provide general mechanical maintenance of transport vehicles. It is fitted with workshop and Electrical equipment, also mechanics tools. It is selfcontained, providing its own supply of lighting and power energy for driving the various machines with which it is equipped. Standard it was also equipped with a trailer known as the Trailer, 4-Wheel, Machinery, Grind and Brake, In accordance with the towing vehicle also designated QMG-MT Trailer. It's primary role was as to be used by RCEME and by RCASC workshops for mechanical repairs of automotive (all sorts of vehicles and related equipment) components and parts thereof including battery charging and paint spraying. The trailer was used for turning and grinding brakedrums, grinding brake linings and grinding cylinder heads.


On the following pictures the outside of the vehicle is shown with the sides and back opened. Also interior views are provided. Alle are from the WM-3766 Manual. For guidance see the captions under the pictures.



The Lorry (Truck) Body.

The body of the lorry is a 15'3" "Lindsay" house type steel body with drop sides, forming a work bench on either side. A ladder at the rear provides easy entrance and exit to the body. Canopys extending over each side of the Lorry can be installed to provide suitable covering when Lorry is in operation with the work benches down. Two canvas penthouses are provided, with poles and tent pegs enclosing sides when dropped,affording protection for the operators against adverse weather conditions.

Standard Equipent on the Machinery "M".

Power Unit - The power unit consists of a four-cylinder, water-cooled gasoline engine coupled to a 7-1/2 Killowatt 110 volt generator which supplies power for lighting and machine operation through a Killowatt main Power Distribution Panel. Mounted on top of the Generator is a belt driven electric "arc" welder. The generator, engine and welder are assembled into one Unit.

Engine Reconditioning Equipment - Besides regular hand tools and gauges that are required, varied equipment is supplied for engine repair and maintenance purposes. The cylinder Howe grinder consists of a set of abrasive stones mounted on a carrier driven by an electric motor through a shaft with a flexible joint. Grit produced in the cylinder grinding process is removed by a suction housing attached to the hone. For reconditioning and trueing up cylinder walls a boring bar is used. The boring bar is driven by an electric motor embodied in the machine. The valve seat grinderand valve re-facer are used for valve and valve seat reconditioning. Both units consist of abrasive wheels driven by electric motors. The pin hole grinder consists of a set of abrasive stones which can be mounted on a shaft driven by an electric motor. This is used for grinding the interior of bushings etc. Connecting rods are tested for alignment conditions by use of the connecting rod aligner. The lower end of the connecting rod is held on a mandrel and the rod alignment checked and corrected. The spark plug cleaner and tester provides a means for checking the efficiency of spark plugs and for removing carbon deposits from the electrodes of the plug.

Welding and Cutting Equipment - A belt driven electric welder is supplied mounted as part of the power unit and V-belt driven by a four cylinder gasoline engine. In addition a welding outfit using a combination of Oxygen and Acetylene gas is also supplied.

Battery Charging Equipment - Two battery charging units are supplied. One is a constant potential battery charger consisting of a 7-1/2 Volt battery charging generator driven by a gasoline, water-cooled engine. The battery charging switchboard is complete with inter-connecting multi-conductor cables from the generator. Up to ten six volt batteries can be charged at one time by this method, each battery being connected directly to the switch- board. The other battery charging unit is a resistance battery charging panel. The current for operation is secured by connection to the main power distribution panel. Up to 48 cells can be charged in series from this charger.

Electric Power Drills - Two portable drills of and 5/8" capacity form part of the equipment, both are fitted with cord and twist-lock plug and located at convenient points in the Lorry body. An electric motor driven Bench Drill having a range of five speeds is also provided to meet the average requirement for high and low speed drilling.

Compressor and Spray Gun - The air compressor, driven by an electric motor is complete with tank, air conditioner,motor starter and pressure switch also gauges and paint equipment, including hose.

Hydraulic Units - The Porto Power Unit being a hand operated hydraulic pump supplies power through various attachments,the application of which enables the operator to apply pressure for metal straightening, removal of truck wheels, and general press work requiring precision control for pushing, pulling, clamping, twisting, spreading or bending. Two capacities are included,in this Lorry 10 ton and 20 ton. Two garage type floor jacks are included as part of the Lorry equipment, also two 8 ton vertical lifting jacks.

Sewing Machine - The portable electric sewing machine is fitted into a folding cabinet, which when opened forms a sewing table. The machine is used for repairs to tarpaulin and machine canvas covers, etc.

Testing Equipment - A Battery condition and capacity tester is provided in order to determine the capacity and internal condition of batteries. It is a panel having two cables fitted with clamps at one end and passing through a variable carbon pile rheostat connected to certain meters. The Battery Service Kit is comprised of a hydrometer for checking the condition of the electrolyte, a syringe for adding water to the battery cells, terminal pullers, battery post shims etc. A Coil and Condensor Tester is also provided for electrical tests. The A.V.R. provided consists of an ammeter, voltmeter, and a 3/4 and 1-1/2 ohm. Resistor, combined in one portable tester.

Tools and Equipment - Artisans' tool kits, hand tools, gauges and instruments are also provided insuring sufficient equipment to permit efficient operation of all machinery components and the execution of the tasks for which the personel are responsible.

Lighting - In addition to standard lighting, the overhead lighting system is equipped with 4, 50 Watt “Blackout Bulbs". These are blue in color and controlled by a door operated switch on rear door. When the door is closed the "Blackout Bulbs" will come "on" and provide sufficient light for the interior of the Lorry that work in progress may be continued.



Interior views of the Machinery Body. Below drawings that show the layout of the body from all sides.


The Floor Plan


The front and rear sides layout.


The right side layout.


The left side layout.

The Trailer.

Below the complete combination of the Diamond T Truck with the trailer is clearly visible as is the layout and equipment that was stored and used on the trailer.





The Trailer is a four wheel Fruehauf with a 95" wheelbase, 11,500 lbs. capacity. It is equipped with a hand operated parking brake, automatic over-running hydraulic impact brakes on all four wheels and air brakes operated from the tractor cab. A lock-out collar is used on the impact brake when backing the trailer. The trailer body is a 12'0" General Service Steel body with 5'6"x30" drop "work bench" sides, equipped with adjustable legs. A pipe superstructure and flat tarpaulin encloses the entire body. The ladder fastens to the right or left drop side, and when not in use is normally stowed inside the body. Tee handle bolts are provided to fasten the ladder in the stowed position. Below the drawing of the layout of the trailer.

Bibliography:

- WM-3766 from December 1942
- Vehicle Data Book Canadian Army Overseas 1944