• 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. Quki22

    Cat 277C Hydraulic System Question

    I noticed that after running the machine and letting it cool down, next day, the hydraulic oil level seems to drop in the sight glass. When I remove the hydraulic cooler cap to add more oil there is a slight “hiss”. After this the hydraulic oil level returns to the normal level in the sight...
  2. Quki22

    Cat 277c Hydraulic Accumulator Precharge Pressure

    Replacing the hydraulic accumulator on my Cat 277C (JWF01714) and the label states 0psi precharge but tech is stating that it needs to be precharged to approx 280psi. Has anyone come across this before?
  3. Quki22

    Cat 277c Front 15” Idler Wheel Lock Nut Torque

    Noticed the inside front idler wheel hub on my Cat 277c MTL (JWF01714) was wet. The metal face seal was leaking. Was able to get the hub rebuilt with the new face seal and inner seal. When removing the lock nut off the axle to remove the hub, it was rather tight on there. Does any one know what...
  4. Quki22

    Cat 277c AC Charge

    Going to replace my AC accumulator on my CAT 277C MTL (JWF01714) and was curious if anyone knows how many lbs of 134a is required for a full charge.
  5. Quki22

    Hydraulic Oil Filtration

    Has anyone attempted to plumb in an onboard bypass filtration circuit for their hydraulic oil? Something that would take hydraulic oil from the tank drain hose, maybe via an oil scavenger pump, filter it through a 2 micron filter then discharge back to the top of the tank. Basically an onboard...
  6. Quki22

    Cat 277c TPS Calibration Issue

    I have been following several of the TPS threads but have not found a resolution to a recalibration issue. I took my 2008 cat 277c JWF01714 to the local cat dealer for the travel speed slowing to a stop. I provided them the service bulletin regarding this known TPS issue and for what ever reason...
Top