Air Lift 25854 Installation Guide download pdf (Page 12)

MN-750

(A2) heavy duty compressor

Ground

Power (red) wire

Filter

Compression fitting

Leader hose

Butt connector (yellow)

AIR LINE AND POWER WIRE ROUTING FOR

THE HEAVY DUTY COMPRESSOR:

1. Remove the nut from the leader hose and install over air line from check valve assembly.

2. Push the air line from the check valve assembly into the barbed tting on the compressor

leader hose.

3. Slide the nut over the tting and tighten securely (g. 13).

4. Route the harness to the compressor.

a. Use existing grommets in the oorboard or rewall to route the harness from the cab

to the frame mounted compressor.

b. In some cases, a hole may have to be drilled to allow access for the harness. Drill

a 1” diameter hole and install the provided grommet (g. 14). It will be necessary to

seal any grommets or holes that have been cut, drilled or removed so as not to allow

elements to enter the cab area of the vehicle.

c. When routing the wiring harness, it should not be routed so as to lay on, or near,

the exhaust pipe/mufer/catalytic convertor of the vehicle. Routing along the top of

a crossmember or over a heat shield is recommended.

5. The next connection is between each air spring and the air line “T” tting.

a. With the air springs deated, use a hose cutter to cut the air line already installed

between the air springs and the ination valves.

b. Install the provided “T” ttings (g. 1) by pushing the air line into each leg of the “T”

until you feel a denite “click”. Each line should go in 9/16”.

c. Connect a single length of air line to the open leg of the “T”. Connect as shown in

the pneumatic schematic.

d. Route the air line across the chassis from the far side over the exhaust system heat

shields and along the frame up to the compressor. Avoid heat sources, sharp edges,

and tight bends.

g. 14

After the hole is drilled and before

you route the harness to through the

rewall, insert the grommet and “walk”

the material around the inside edge of

the drilled hole. You may have to trim

the grommet to get an exact t.

(The exible grommet is in the sealed

parts package.)

g. 13

Load Controller / Single

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Air Lift 25854 Installation Guide Page 12

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