Document No 7209-D0001-10
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INSTALLING THE COMPRESSOR UNIT
5.
Connecting Truck Electrics to the Diesel Engine Driven Compressor Unit (continued)
1.
The SMAC needs to be connected the truck battery. A minimum of 25mm cable is required for
the connection because the SMAC is started using the truck battery. SMACD units are 12 Volt
DC. In the event that a truck is 24 Volt DC (Two of 12 Volt DC batteries are supplied in the
truck), connection for the SMAC Unit will be across 1 of the batteries.
2.
The start switch control box which includes the compressor load and unload switch needs to
be connected to the SMAC front panel via the Deutsch plug provided at the end of the 5
metre cable of the control box. It should be noted, this switch box can be mounted in the cab
of the vehicle if an extension harness is purchased or any location on the vehicle body.
6.
Connection of the Diesel Engine Driven Compressor Unit to the fuel tank.
It is normal to use the trucks fuel tank for all models of the SMACD. The SMACD has as standard a
fuel pump built into it. It is suggested that an additional electrical fuel pump is installed if the
compressor unit is installed 20” (500 mm) above the height of the truck diesel tank. The following is
the method for connecting up the fuel to the compressor unit.
1.
Cut the feed and return lines at the tank. Install the tees into the cut pipes.
2.
Install the provided check valve at the T-Piece of the feed pipe.
3.
Connect the diesel feed pipe to the compressor unit from the check valve. Connect the return
line from the compressor unit to the return line tee.
7.
Remote Air Intake Filter Removed For Shipping (Optional).
A label on the unit will indicate if the Air Compressor Filter has been removed for the purpose of
shipping. IT IS IMPORTANT THAT THE FILTER IS FITTED BEFORE THE COMPRESSOR IS
STARTED. The following is the instruction for fitting the filter to the compressor.
1.
Remove the front access panel by pulling out the top of the panel until it is free of the rubber
mounts, lift to free from bottom rubber mounts.
2.
Put the hose clamp over the air hose protruding through the top panel and push the Air Intake
Filter inlet tube into the hose.
3.
Using the 2 off M8 x 30 bolts, flat washers, spring washers and nuts, bolt the Air Intake Filter
into place.
4.
Tighten the hose clamp and refit the front panel.
