Paulie
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Yes that looks like the unloader port. That’s where the 1/4 line would go?
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Here are some pictures. I have the governor mounted on firewall. Where does the 1/4 line from dryer attach?
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I have to check tomorrow but believe the governor is mounted on the firewall of truck. It’s a 1985 Mack r model
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Air dryer lines are there. They put a 1/2 inch fitting and connected them together. The 1/4 line is disconnected at left on frame where air dryer was suppose to be. Other end by compressor is also disconnected, not sure where to hook up. Your saying to run to 1/4 inch line to govenor?
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Bought truck and realized there was no air dryer on truck. I can see where they disconnected the lines. There is the main line that goes in and out. Then there’s a smaller line that runs up to air compressor but is disconnected. Believe it goes to the air governor. Does anyone have a picture of compressor and govenor so I can see how to connect.
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Can you repost link. Can not open it. I have a 1985 mack r688t
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R Model Headlight Wiring
Paulie replied to Lmackattack's topic in Antique and Classic Mack Trucks General Discussion
Do you have a copy of the wiring diagram? I have a 1985 mack R688T and dash lights do not work -
Just purchased a 1985 Mack R688T. Needs some fine tuning as some things need attention. Looking for a copy of service manual or wire diagrams for the truck
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Paulie joined the community
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Wiring Diagram For R688 1990
Paulie replied to amberwood's topic in Antique and Classic Mack Trucks General Discussion
I’d like a copy of the wiring diagram. I have a 1985 Mack R688T
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