stev

I understand I need to get a service manual, and am looking around for one. If anyone knows where I can get a 1988 or so TS576 manual for a reasonable price, please let me know. So, the doors on the truck don't really close tightly. The passenger door was so loose it's rattling was louder than the engine when sitting in the cab when the truck was idling. I looked at the assembly, and noticed that the cam on the door rotates into three positions. One at 9 o'clock, which is open, one about 7 o'clock , and also down to 6 o'clock. I assumed that the cam, when the door was closed, was only rotating to the 7 position, so I moved the catch on the door frame out, hoping that the cam hitting the catch earlier would cause it rotate all the way down. While it does close tighter now, and the rattling is mostly gone, it is still not seated as well as i would like. The driver's door is about the same as this one is now. Before i open the inside of the door, i was wondering if there were any tricks i should be aware of. It appears that the mechanism is attached to the inside panel, and if I unscrew just the panel, i will get the mechanism still put together to look at. Is there anything else i should be concerned about? Is there a way to get these doors to close tightly, I assume the way they did when the truck was new, or am i just wasting my time? Thanks.

Thanks for the reply. It turned out to be no power from the ignition switch. I opened up the dash, and found quite a selection of unused wires back there. Some clearly had never been used, and some were just flopping around. A small number had been cut. I found one of those that was hot when the key was turned, but not when the key was out, and just connected it to the source side of the gauge, and it works now. I found this illustration: http://www.tpub.com/content/firetrucksandequipment/TM-5-4210-230-14P-1/css/TM-5-4210-230-14P-1_922.htm particularly useful. Thanks for the quick answer. I assume that the draw for the gauge is small enough that i don't need to worry about which circuit this is on, do you think I should be worried about it for a different reason? Some diagrams for this on the Internet refer to a voltage regulator, but the above one does not, so I assumed that I was ok. I really need to get a service manual for is beast. I bought an owners manual off eBay awhile ago.

So, I recently bought my first Mack, a 1988 r688t, and am trying to address a few issues on it, My first is the fuel gauge. It reads empty, all the time. Several knowledgable people have told me that this is common, and just to use a stick to measure the fuel. If this is really common, the reason must be understood. Can anyone tell me what is likely causing this failure, and how i can fix it? Thanx, this is only the beginning of several issues i have, hopefully I can get some assistance here to resolve them. . . . . .

when looking at 1980's vintage trucks, i notice that a lot of them have had the original spoke wheels replaced with Bud style wheels. interestingly, i notice that some have only had the front wheels replaced, leaving spokes on the rears, like this: http://www.truckpaper.com/listingsdetail/detail.aspx?OHID=2164339 is this just an expense thing, or is there a reason to go for different wheels on the front while leaving spokes on the back? about when did Mack change over to the Bud style of wheels? thanx . . . . . . . .