tjc transport

a freind picked up a used 2103 CX713, it did not come with a radio in it. the wiring is there though. he asked me if i could set him up with a radio and CB.

i have a CB and antenna setup already for it, just need to pick up a radio.

anyone know what mack gets for a radio already wired for the truck?

i agree on the caddy or gm engine. and it also has a GM brake booster and master cylinder in it.

thanks. the truck sat for over a year before we got it, and i think a wasp made a nest in the drain tube.

anyone know where the AC drain is on the Granite? mine is starting to overflow on the floor, so i am thinking the drain is plugged up.

years ago we had 2 TS32's we used on the widening of the new jersey turnpike project.

they were rock pans. weighed around 95 ton if i remember correctly.

12V71 detroit in the front, and 8V71 int he rear with alison electric shift transmissions.

that sure is one handy machine right there. I wonder why it says GAS on the fuel tank tho??????

if you enlarge the picture the green tag on hte driver side tank says ultra low sulfur diesel fuel only.

so as was already said, the passenger side tank is probablt for the rear mount crane

that looks very clean. i wonder what they want for it?

Some great pics there. Doesn't seem like I've seen many old heavy haulers using jeeps. Seems like they hauled whatever they could fit or pull on five axles. Is that dozer one of those that has the winch on the side that is used as a crane?

looks like it is for tractor use like pulling a scraper. there is no boom or counterbalance weights like a cable layer would use, and there are no gimbles for mounting a blade to.

here in New Jersey we are lucky that the only swift trucks we see are mostly on the turnpike or Rt#80 passing through the state.

our biggest problem is JBHunt. they make the swift drivers look like professionals.

JBHunt hires most of their drivers from smith and solomon driving school.

which as of late has a 1 in 10 pass to fail rate of drivers taking their road test after going through the "training".

but i swear they hire the rejects, not the ones that pass.

it should get very interesting here after the firs tof next month when the new rules for driver testing start.

besided the regular course, you will have to parallel park.

they measure the rig, add 15 feet, and you only get 2 chances to park in the space.

if the AC is working, then it is not high pressure and you can rule out the air conditioning circuit. .

whether the AC is turned on or off, if pressure is too high, the fan will stay on all the time.

it could very well be a bad computer. i was just looking for other ways to pinpoint it.

same thing the granite was doing.

high AC high side pressure, bad coolant temp sensor, bad computer ground, and an air leak will cause the fan to stay on.

does the air conditioner work?

on my 05 granite it is on the firewall, top passenger side. looks like this:

my problem was an air leak. once we replaced the leaking 1/2 inch synflex line the fan started working properly again.

for a temporary fix, i would add a ground wire to the air switch and run it into the cab to a toggle switch you can control. when you see the temp rise to 180 or 200º flip the switch to turn the fan on. once it cools off, turn the swich of.

look for the electric over air fan controller.

2 wires go into it. one is 12 volts all the time, the other is a switched ground from the computer. jump the ground side to a good electrical ground and see if the fan clutch shuts off. if it does not, the problem is with the electric over air controller.

if it does shut off, check the pressure in the high side of the air conditioning .

if it is over 260-270 lbs, the fan clutch will stay locked up. high side pressure should only be between 150-200 lbs.

agreed. or it is a home made trailer.

looks like an old Miller tilt top trailer,they weren't very long.

agreed. or it was a home made trailer.

i always was under the understanding that "stupid" and j b hunt went hand in hand.

the same way if you put a 1 foot square patch of ice on the road surface, 6 swift drivers will find it and slide off the road.

car fax is useless. it will only show a problem if it is reported. and it appears nothing was ever reported as being a problem with this truck.

i ran a 79 DM800 with 237 and a mud stick for 15 years and close to 750,000 miles shifting 123 in low, then 2345 in high when loaded. never broke anything, and still had the original clutch in it when the new truck came in in 95.

the dm also had the dynatard engine brake hooked up to a 2 speed rear switch on the main stick so i could pop it on/off between shifts to keep the rpms up.

to add to the confusion with this truck.

the boss replaced a 1/2 inch synflex line in the driver side frame that was leaking last night.

the line would leak out all air in about 4-5 hours sitting engine off.

today i tried the ac at 11:30 because i noticed the fan did not come on all morning. the AC now works, and the fan stayed off until i hit a grade and temp got up to 200. cooled off to 180, the fan turned off, and stayed off for the rest of the ride home.

The fan can stay engaged for awhile after the high pressure switch it opened. Usually its set at 60 seconds. This a parameter that can be changed in the engine ECM. Factory setting is 60 seconds.

that is what i thought.

once the clutch engages, it stays locked up until the engine cools off and all the air is drained out of the tanks.

today it came on at 8:15am as i was pulling a grade loaded.and stayed locked until i parked the truck at 3:35pm which was a little different than normal,

normally the clutch works as it should, comes on at 200 degrees and shuts off at 185 or so, unless the ac is touched or the defrosters are turned on. then it stays locked until engine is cool and all air drained out of the tanks.

but once the high side pressure drops below 300 the fan should turn back off correct?

with this truck, the clutch will not disengage until the engine gools off the air system is drained.

i have since grounded the switch and the fan unlocks.

if the air conditioner is kept off, the fans stays unlocked.

as soon as the air contitioner is turned on, the fan locks up and stays locked until the engine gets cold and all air is drained from the system. then it will stay unlocked until the air is turned back on again. and it does not matter is the pressure switches in the air conditioning system are connected or not.

also, the air conditioning does not work at all.

if i put 12 volts directly to the clutch on the compressor, the ac works and pressures are correct, 35 low side 290 high side. until the 12 volts is removed.

both high and low pressure switches can be disconnected, as soon as i push the AC button on the temp panel the fan locks up and stays locked until no air/cold engine is reached.

either way. as long as the switch is connected.

when the pressure in the AC gets high enough, it turns the fan on to help dissipate the heat, which will lower the high side pressure.