amberwood

Name: Mack R688 (1990) Date Added: 14 August 2009 - 05:07 PM Owner: amberwood Short Description: R series logger, works with 40' self loading rigid log skel View Vehicle

Not a complete solution but I carry a hose with a trailer service fitting one one end a has a glad hand on the other to fill the start tank. Then you just need another truck to fill you up. So far I have not needed it, fingers crossed. DTR

solved it. 20A glass fuse hidden on the back of the flasher can. looked ok but tested as blown. 20yrs of accumulated dust had it camoflaged as another bundle of wire. cause. LH rear lights on the prime mover, the loom was crushed between the new (6 weeks old) pintle towbar hanger and the chassis. A few thousand km's of vibration and it had worn through the insulation. DTR

Picked up a load of logs early this morning, droppped in at home for a few hours for breakfast on the way thru, went back and i have no indicators. I cannot to locate an allocated fuse or circuit breaker, no juice at the switch, so it is somewhere back from there in the system. 1990 R688 Valueliner,E7-400. help DTR

OK, all fixed. It appears that there was a loose wire on the throttle microswitch. thank all for the help DTR

Rob. The fuse does not blow until the exhaust brake is activated, and actually it is the second application that the fuse fails on. It appears that a previous owner has fitted a 10A spade fuse directly behind the dash switch, this might be a reoccuring issue. Answering some of the other queries raise, yes it is a late mechanical engine, all clockwork and relays. i am bring the truck back to the yard tomorrow to repair the crane and will get the mutimeter out to check the potential problem switches. thanks DTR

thanks rob. i will give it a go first chance and see where the problem lies. DTR

I have a specialty sawmilling business, and the mack is set up with PTO etc to tow a 40' rigid log skel with a midmount Loglift crane. I try to check ebay regulary but no luck on the right manual as yet. DTR

Just joined up having recently purchasing my first semi. The first gremlin has just turned up in the electrical system. The 10A fuse on the engine brake pops after a single application. I was hoping to source a wiring diagram, or even better tap into someone who has seen this problem before. DTR