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309395
2. Installing the Wiring
This unit is shipped from the factory with all necessary internal wiring installed. The only remaining
wiring necessary is the wiring needed to interface your vehicle/power source with the Boss compressor.
The unit is shipped with a 5 pin connector, they need to be connected as follows:
1. Pin “B” and Pin “E” are to be connected directly to battery positive (Pin “B” red wire) and
battery negative (Pin “E” black wire).
2. Compressor Only: for normal compressor operation, supply 12VDC inputs to Pin “A” (yellow
wire). This will activate the system and pressure the tank to 150 PSI. The system will then
unload until the tank has dropped to 110 PSI, at which point it will automatically activate. The
12VDC output signal from Pin “D” (orange wire) will be present only when the system is
compressing.
3. Pin “C” (green wire) is connected to PTO ground.
3. Connecting the Hydraulic Hoses
The hydraulic hoses to the compressor should be connected directly to the hydraulic block. The port sizes
in the blocke are -10 SAE. The pressure “P” input line should be made from a good quality high pressure
hydraulic hose 1/2” or 3/4” I.D. rated to handle the hydraulic systems on the vehicle. The return line to tank
“T” can be made from a medium pressure (min. 1000 PSI) hydraulic hose 3/4” I.D. Care should be taken
to see that the hoses are not installed with kinks or bends that inhibit flow of the hydraulic oil. Lack of flow
could result in damage to the motor and compressor. Lastly check to make sure hoses are not in contact
with sharp objects or edges that may fray, chafe or cut them over time. Secure all hoses with tie down
straps or clamps.
4. Connecting the Air Hose
The air discharge hose should be connected directly to the “AIR” port. The fitting is a 1/2” female NPT. The
air line should be made from a good quality (min. 200 PSI) hydraulic hose 1/2” or 3/4” I.D. Care should be
taken to see that the hose is not installed with kinks. When adding an air hose, ensure OSHA Regulation
1910.169 is followed.
Installation & Operation
AIR
OUT
HYDRAULIC
TANK OUT
HYDRAULIC
PRESSURE
IN
Summary of Contents for BA435 Piston
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