mechohaulic

On ‎7‎/‎27‎/‎2020 at 11:20 PM, MILEAGEMAN said:

the valve leaked when i released the brakes.  i put the new valve on and it leaked when the brakes were applied and released.  i caped off the two air lines going to the leaking brake can and that didnt help.  i ordered another valve.  im at a loss.   

did you take off the SERVICE line on the other cans and release the brakes; with the wheels chocked of course. possibly another can is by-passing you can't hear. is the pedal itself working free and not oxidized to mount sticking partially on. with parts today , could be bad new valve.  does it have a trolley valve that may be part way on ? did someone have lines off a can then put them on backwards ? these may sound like dumb questions, after xxxxxx yrs of 24/7 road calls ; you get to where you have to start basic with questions.  35min trip on road for liftgate not working --- power cord to trailer not plugged in. next call for same , I said to driver :" is power cord plugged in ?" ; reply - yes it is .... 40 min trip front of trailer  power cord hanging . I said "thought you said cord is plugged in!!!!!! . he points to LIGHT cord and says that's it right.  light cord green , 2 wire power cord black ...  OK I'm paid by the hr, still have rest of fleet to maintain.

years back , I ordered them from fleetpride (Connecticut driveshaft back then  ) they helped a lot in keeping a fleet of ice cream trailer cleaner. but be ready for some swearing from tire changers :LOL. triaxles don't do a lot of winter running, snow not a major issue.  the snow does a heck of build up during winter driving. they weren't cheap ; but safety for me was the biggest concern . rain  over spray highway driving is reduced  big time. course tire work on triaxle is simple ; just raise the body.

no where in the conversation was it stated whether the valve was a constant leak or when brakes are applied. brake cans leaking internally  maxi to service usually exhaust out the frame quick-release valve .  being new to owning a '70's mack; hope you pay very close attention to the how's and proper way to change a brake can!!! I would doubt the cans are original. the old cans were able to have BOTH diaphrams changed.  fortunately  new cans  are no longer able to disassemble maxi side..

not for nothing; reading all the technical ideas that  are on track ., did anyone consider maybe  the brand of oil being used isn't holding up . the pictures show a definite problem with foreign matter raising havoc with bearings etc; the oil itself may be breaking down ,,

On 5/13/2020 at 7:49 PM, PaLawman said:

 I have ruined many paint jobs too with the metal sparks etching itself in then rusting by not covering the cab...

always keep cardboard  for coverage also  , it might start burning; easier to put small smolder out that paint repair. 

back in the mid 70's mack truck Waterbury ct   sold an entire construction fleet ;;;; MB concrete pumpers, DM dumps and tractors to Poland..being a Polish lad ;; I was glad Poland knew quality    .. 

I'm  liking the clean organized  shop.  did notice a couple of the pics where the cutting was going on,  I screwed up a mirror once while cutting and the sparks pitted the glass.   always cover the  mirrors or windows when sparks are flying. trucks looking real good

On 5/10/2020 at 10:26 AM, mowerman said:

i broke in on a 2 stick U model,,,,with a DMV inspecter.....pretty cool old days........and yes eat your heart out....newbee aahahahahahahahahaha....nowdays,,,,these kids wont even hire on without an automatic transmission,,,and a XM radio...lol.bob

auto trans and XM radio  aren't  the first thing the "kids"look for;;;; first question is   : wheres the AC switch!!!    my  answer -- drive a B-model  ,they have the best AC  . just turn the little vent window in and drive fast.  faster you go better AC works.. LOL

On 5/10/2020 at 4:19 PM, Vladislav said:

One more of the kind in my 'puter.

Hope none of those watermark holders will have a fan switched on.

Beautiful  looking machine,  enough to make me come out of retirement  to drive .. NO plastic  all steel 

don't ever recall a gold dog having  a gold base. always chrome. but then again the wife expects me to remember things I don't . LOL

On 5/1/2020 at 9:08 AM, j hancock said:

Classic lines of the R model Mack.

never cared as much  for the R-model hood after they changed to a three piece    hood. older one piece was nicer  looking without the seam on back fender wells. times change . sure it must have been cheaper to make ..

where in ct are you. stone construction (exit 14  off 84)  last I saw had a manual steering box  sitting on the shelf in a very messed up parts room. George still has the #1 R607T ; doubt  he will use the box. I've worked for stone for 25 + yr : 20 yrs ago. was there last yr helping out. heard  there is a superliner hood in one of the storage trailers and a good bumper also.  interested tell ryan :::  Dave sent you. 

is that Beard's  B -81 to the left ???   Allen always had some fine looking trucks  all black . remember the day Waterbury mack set up two  dumps; all black and chrome . anticipated  selling to Beard; tried to get account from new haven mack. seems one was DM800 another RD600. beard told Waterbury to stick them. LOL heads would roll. a lot of money in chrome . don't  remember where they went

On 2/17/2016 at 12:24 AM, Bbpools said:

My tandem axle dump has the trolley brakes on the rear axles. I'm gonna have to replumb it also cause I'm putting a pintle plate on so I can tow a tag trailer.

install the shuttle valve.  challenge is to remember the trolley WON'T  hold the dump truck it self any more

straight trucks had trolley set to rear service brakes through the treadle valve. when it's  set up for trailer operation' the treadle valve HAS to have a shuttle valve installed.  lt's a small valve many times threaded in to the treadle valve. more like a Tee -valve. some have brake light switch also. when foot brake applied, inside shuttle internally blocks air to trolley; likewise pull trolley applying  trailer brake ; tractor brakes not applied.  without shuttle valve  every time foot brake applied. air would exhaust through trolley . in your case every time trolley applied   truck service brakes come on 

On 4/19/2020 at 10:55 PM, 41chevy said:

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DM600

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I know  they were/are out there ; it's just a better day when the job ticket said  working on a DM800. had a head gasket job  on old white day cab with 220?cummins  slant six half cab. like the half cab 600 ; install 2nd 3rd head and torque 6 corner 325lb studs;; another back breaker.  those are the days   you look to hang an engineer. 

3 hours ago, 41chevy said:

FCSW 1936 to 1947. There is a water tanker and a dump body that come to Macungie both have the pre L cabs

 

the FCSW could be cause for debate as an off-set.  the cab isn't  flush with the body, has driverside fender wider then cab, bulldog on radiator cap some what centered with front windshield center line.  hood design makes off set appear greater. drove both DM600 and 800 dumps basically you are on the body line.   yes /no the FCSW  was an off set relative 

11 hours ago, mowerman said:

well i own one,,,,DM600and im not really sure,,,,but i watched a video a while ago and it explained only reason for it was leg room,,,,but it still doesnt explain what about the 800 series,,,,but i heard years ago....it was just for visibility ,backing in .......bob

The 800 series gave  a person the opportunity  of higher horsepower for a heavy haul mover.  imagine working on a 600 with a 864 /866 V8 or large cummins or cat.  and besides  what a beautiful majestic looking truck :DM800  LOL. 

4 hours ago, james j neiweem said:

Mr. Hancock to the rescue. Offset cabs did give you a good line of sight down the drivers side. There was a predecessor to the U and DM back in the 40's or 50'sI forget the model' A huge Mack water truck sometimes makes the show circuits. FK maybe? It seems Mack out did them all by a long shot with the number of models

LM had the off set.   arute had one

On 2/3/2016 at 7:17 PM, BKrois said:

My neighbor hauled fill into my house today, sweet ride

I know  I'm  getting old when looking at pictures like these and realize  ;; I worked on his fathers trucks.  I see curt's address as Roxbury.  I worked many years for AJP milk haulers also . 

On 2/23/2015 at 9:45 AM, Timothy Maikshilo said:

My favorite Connecticut construction trucks were available here and I spent a lot of time at each location

my starting place ' great place; good people ,, march 3, 1969   $1.70 per hr.. waterbury