• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. truecountry

    cat d5k2 ac problem

    Hi guys i got a tough one ....ac wasnt cooling found the low pressure line at compressor had come apart inside and had a lot of holes in it replaced and still has a leak ....will not hold a vacuum ...but if i pressurized system with 100psi shop air it will hold it all day ??????????reason i use...
  2. truecountry

    its a exacavator type machine problem

    Mud Dog Vacuum Excavator 1200... i got a hydraulic pto driven pump and control valve and hydraulic motor driven pressure washer ...its a no dig site use water pressure to break up ground and vacuum the mud ... its having hydraulic issue i think but also i cant rule out water pump engage pto and...
  3. truecountry

    Vin x027972x 720avhp again ....

    Vin x027972x 720avhp Got a issue with machine going forward at any speeds and go into reverse by its self ...sliding rear tires and all ... Now i been told it was key switch one time a couple years ago and was replaced ..Some how that doesnt sound right to me . Anyone had that problem?
  4. truecountry

    Champion 720a transmission issue

    Vin x027972x 720avhp transmission code 4.2 neutral switch now its electronic shifter so im thinking neutral switch is built in computer board ? its 8 pin pull a-h anyone have a clue where to start volvo has been 3 days waiting to get back to me on troubleshooting..lol
  5. truecountry

    Mack dump truck eup fuel pump problem

    Ok I got a Mack dump truck with ai-475 engine from another company to work on yes we are slack at work and taking in equipment to work on .. and was told the first eup pump broke in 3 pieces .. New pump installed and fuel line by another tech and now its a misfire on number one cylinder the one...
  6. truecountry

    Cat d5n is becoming a head ache..lol

    Cat d5n agg00655 Operators I say this lightly because no one done it they never do ...own up to breaking something and how it happened My shops first call hose busted replaced hose and needs replacing ... replaced busted hose noticed tilt was limited and angle to left was good but not half to...
  7. truecountry

    Hitachi Ex330lc-5 hydraulic pumps

    Guys I need to have the pumps rebuilt they are hpv145f rh28b How hard would it be to rebuild them myself and a parts supplier ? Or a place that has rebuilt units ready to go
  8. truecountry

    Caterpillar 315c l a/c problem

    Guys I been working on this excavator for a week on a/c unit ..Serial # is Cjc01986 Compressor was locked up replaced it and dryer and expansion valve ... Pulled a vacuum and a leak on hose ..from expansion valve to dryer Long story short compressor will not kick on unless I frame ground the...
  9. truecountry

    cat d5n problem doesnt make sense

    loaned it out to a company we do a lot of work for ..call came in broke a hydraulic hose they fixed it washed machine off now it will not start blows fuse... I go check machine find a short to ground.. wire 308 from key switch to ecm replace wire outside harness for a quick fix till I can tear...
  10. truecountry

    STONE TR34R any one know where i can get a shop manual

    STONE TR34R
  11. truecountry

    Caterpillar D5N hydraulic problem

    S/n is agg00655 Problem is when lifting blade it drops 3 inches or so and then goes up Ive rebuilt control valve and found O-rings missing on resolvers on all banks primary and secondary I even replaced the 6 small ball bearings and 1 bigger ball bearing and piston and shaft on end of lift...
  12. truecountry

    Volvo a25 6x6 need a lil help..

    The A25 has no serial number tag .. owner thinks its 4 digits starts with 8 _ _ 8 .. Engine number I found is TD71K...288..43609...The heads are both badly cracked in injector ports and Owner doesn't have a parts book and Volvo is asking a lot for 2 heads Is there anyone that has aftermarket or...
  13. truecountry

    cat 433cp 2jm00257

    Had a leak on control valve pump that bolts to engine runs front drum the middle controls propel and end vibe ...leak was at top where the rod connects the propel and drum so they stay in time .....ok in pulling the spool the sleeve came out too and its a groove in sleeve on bottom does that...
  14. truecountry

    caterpillar d5g fuel problem

    cat d5g AGG00655 or AGG0655.... Its been a on going thing I learned today ..all equipment there on site is fueled from a 1000 gal tank into a 100 gal tank to equipment none of them have any problems at all..d5g fuel filters have been changed 3 times by foreman at job site...its always fueled up...
  15. truecountry

    Caterpillar 815 cylinder question

    What is the size of the bottom of the cylinder sleeve on engine 3306 serial number 4n75543... I need to make a sleeve puller ..
  16. truecountry

    Cat 924g problem

    serial number 9sw01157 I think I'm right last 2 digits are screwed up .. Anyway it doesn't go into to 4 th gear code is 681-2 irradic signal ,no signal ... I tested the high speed solenoid and no current other then 4.9 ..tested 3 th gear and saw it jump to 11.9 from 4.9 volts.. New gear...
  17. truecountry

    Cat 277c electrical problem

    Ok SN is jwf00391 My problem is it will not crank after it gets hot ..no power to the solenoid on starter when key is on Brand new cat starter and same problem noway I have 2 bad starters,,,and Voltage is good at battery .Swapped relays with Air Conditioner and same part number and same...
  18. truecountry

    D5m Hydraulic problem really cant figure it out

    Ok I got a d5m 6gn00432....It has a hydraulic problem ...will not lift or tilt or angle sitting at start up unless you are move forward then its fine everything works great ... Now I know trans pump and hydraulic are 2 different systems ,, why would it take one to move for other to work ...
  19. truecountry

    D5G track adjuster problem

    Hello all I got called out to work on a d5g (agg00432) and after finishing repair boss asked me to tighten track up on right side ..After taking the cover off I see a hole on side under grease fitting and grease coming out I tried tighten fitting but it was tight ...Hole looks to be a release...
  20. truecountry

    Caterpillar 315c Hydraulic problem

    I'm really at wits end on this one Serial number is cjc01986 I get a call last week 315c had quit moving while digging ..15 mins later it would move but only for a few secs When I get there it will not do nothing (engine runs no change in sound of engine moving hydraulic shift level ) I check...
Top