Part 3: Installing The Cooler, Bracket And Compressor; Installing The Cooler And Coolant Hoses - Vmac VR70 Installation Manual

Part 3: Installing the Cooler,
Bracket and Compressor

3.1 Installing the Cooler and Coolant Hoses

Coolant flow through the radiator will be reversed once
the compressor cooler is installed. Engine cooling will
not be affected as the truck uses a cross-flow radiator.
□
Remove the horn assemblies from the cross-member under the
engine and drill the two 8 mm mounting holes to 13/32 inches.
□
Bolt the cooler back plate to the front side of the cross-member
with two M10 x 30 mm bolts, washers and nuts through the horn
mounting holes.
□
Install the horns into the holes at each end of the rear of cooler
back plate using the OEM bolts.
□
Connect the hose on the passenger side of the cooler to the
engine water pump spigot.
□
Install the short end of the 90 degree hose (cut from the lower
radiator hose) on the driver's side fitting on the cooler and the
long end on the radiator fitting.
□
At the rear of the water pump, measure 3 inches from the water
pump fitting along the 3/4 heater hose, cut the hose and install
the 3/4 inch plastic tee.
□
Connect one end of the 40 x 3/4 inch hose to the tee. Route the
hose down and under the engine behind the engine cross beam
and connect the other end to the spigot on the driver side of the
cooler. Secure the hose with ties.
□
Install the short piece of hose (cut from the end of the lower
radiator hose) on the passenger side radiator fitting, then insert
the steel 90 degree elbow into this hose and angle it upwards
(Figure 3.1).
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VMAC – Vehicle Mounted Air Compressors
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