Ricky Beals

So we are welding a 3/4” plate on back for pintle hitch. I have the gladhands that have a spring on them that seal themselves off when not hooked up. The gladhands have a female thread coming out of the back of them. What do people use to run through the 3/4” plate that will attach to gladhand and airlines but also go thru the 3/4”  Here is a photo of gladhands for illustration 

You got a phone number? Contact info will be appreciated.

JoJo that’s probably what I will do. Thanks for the heads up.

JoJo I will be adding a trailer park button beside my tractor brake button. It’s part of the kit I ordered.

Well I have called four dealers in the state of Arkansas and they don’t have the protection screen for radiator that sits behind the grill. The part number is          BELRG-1929.  Does anybody have a lead on one or an old one they are not using. I called the Starr truck salvage shop that was listed in classified’s but that number doesn’t work. Any leads would be appreciated. I have a 2000 RD688. Thanks Ricky

Terry that would be a question for JoJo but I’m thinking those foot valve lines tie back into the tractor protection valve which will be under the cab.  

The trailer airbrake kit I’m buying from anything trucks says I have to connect to foot valve. Just doing my homework before I get started.

What year rd’s interchange with each other. I have an 2001 688 and will be looking for some interior parts. How far back can I go?

Can someone tell me where my foot valve is located on the 2000 rd688?  Or how to find it. Thanks Ricky

The place I work at has five rd690 that have been put out to pasture. They were all used as dump trucks and I have no idea what is wrong with them. Are these trucks worth anything other than scrap metal price? 

I know this is an old post but since I’m going to be doing this service wanted to ask a few questions. How much gear oil will it take to do the service. I have a 2000 rd 688 so should be same rearend. Also should I add the additive mentioned per carrier? Thanks.

JoJo I guess I never saw this reply from you. Well the truck should be getting out of the shop from the inframe next week. Anything trucks sells a kit for around 500.00 that has everything in it to hook it up. I have the PP-1 dash valve 

Thanks guys, they are holding air I was just curious. 

Ok let’s go back and revisit the leveling valve and arm. I manually turned my valve to add air to my bags. I’m waiting on the lever to come in the mail.  My bags are not leaking down. So my question?? Is the leveler valve only to add air? Does it supposed to let air out of bags when truck isn’t running?

Thanks JoJo, I replaced the spinner earlier this year. Didn’t get to drive much with replacing the camelback suspension and clutch. This just started happening about a week ago. So replacing all those parts should fix the problem JoJo. I will do it.

Ok guys got the valve and shocks changed. The airbags are holding air so don’t see a reason to change them out. 
 

So while I was under there working I noticed oil on drivers side front springs. After looking I felt like the oil was coming from the centrifugal filter housing. After cleaning it up and making sure hose’s were tight. I hauled a few loads of gravel and checked the area. It looks like oil is coming from this? Have no ideal what it is, maybe a vent for centrifugal filter housing. Here it is and maybe explain what’s going on here. As always thanks for the replies.

Thanks JoJo. 

So should the arm have come with the lever valve or is it sold separate. I’m thinking I take the nut off white piece and arm goes there. Then put the stud without a nut (missing) on the other end of arm. That sound right guys?

Onyx610 thanks for the help. JoJo has been helping me. 

Ok guys it has taken my Mack dealer a while to get my parts. Here is what I have with my leveling valve and control rod on my truck.
 

as you can see the bottom stud was broke off my control rod and the white plastic is broke off my leveling valve.
 

The bottom photo shows my new leveling valve and control rod. How does the control rod attach to the leveling valve. I have to be missing a piece.

Any schematic of this JoJo

Ok I will check that. I can tell you my cab sits low in the rear. I can feel it move up around 100psi. That’s what prompted the guy to say something to me. My cab sits low in the rear with full air.

Let’s dummy this down please.

Joey is saying shocks. If I’m understanding you guys I already have shocks under cab which are probably wore out. Are those air shocks? How can I check them? 

Mechohaulic is talking airbags and this would be totally different than what I have correct?

I have a 2000 rd688 that is a dump truck. When the air pressure gets to about 100 the cab raises up a little in the rear. I’m thinking this is to only level the cab. Can airbags bring added to this truck for ride comfort? Had an old trucker to tell me I should add airbags to cab and it would ride a lot better and help my front suspension. 

Hey Onyx610  you going have to break it down a little more than that. I’m almost positive I have two oil filters plus one that has a centrifugal cartridge. What kind of gauge and where exactly do I hook it up?

I will do this,  thanks for the replies