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CAT 303.5 Refurbish Picture Thread

Discussion in 'Compact Excavators' started by scottwolowich, Dec 20, 2020.

  1. scottwolowich

    scottwolowich Well-Known Member

    Joined:
    May 31, 2019
    Messages:
    73
    Location:
    ontario canada
    I'm the owner/operator of a CAT 303.5 that I use in my small excavation business (basement waterproofing, gravel driveways, concrete slab prep, land clearing, ditching, utility trenching, and more). I also use it on my 40 acre wooded lot that I am developing to eventually build a home on. The machine currently has 3500 hours of which I've put on 200 or so. I keep it well maintained but it needs a good looking at this winter - there are some hard to reach hoses that are chafing and could blow at any time on a job site or out in the woods so I'll be addressing that alongside many other issues the machine has. The machine is not in bad condition nor neglected but cleanliness is not allowing good leak detection and it's a bit rougher cosmetically than I would like so it's time to do a bit of a disassemble/refurbish on the machine this winter to keep it going for many years to come.

    I've already recently rebuilt both sides of the undercarriage including bottom rollers, idler wheels, sprockets, tracks, and a reseal on one of the final drives. Here are a few pics from today - the task completed was removing the ROPS and exposing the operator station mounts to get that ready for removal. This will allow for much better access to the engine and hard to reach hoses. I'll be able to clean, inspect, and refurbish things much easier by removing the operator station. Pics are before, with the rops removed, and a few pictures of the 4 operator station mounts. Next up I'll have to disconnect the pilot controls (haven't done this before, I imagine mark the hoses, cap off the ends), disconnect all electrical connections, then I'll use my steel beam above to hoist off the station like I did the ROPs. Stay tuned for more pics. If I can clear up enough of the mechanical work this winter I may even start to paint it.
    IMG_20201219_155439.jpg IMG_20201219_174924.jpg IMG_20201219_174933.jpg IMG_20201219_174940.jpg
     
    FlatTire likes this.
  2. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
    Messages:
    19,309
    Location:
    G..G..G..Granville...........!!
    A suggestion would be to snap loads of photos on your phone before disconnecting multiple hoses in the same general location.
    Coloured ty-wraps to identify connections are also an idea.
     
    uffex, Vetech63, mg2361 and 2 others like this.
  3. FlatTire

    FlatTire Member

    Joined:
    Nov 13, 2020
    Messages:
    14
    Location:
    Illinois
    Nice looking machine. Your definition of “rough cosmetically”, and mine, are way different! Agreed with the colored zip ties for marking hoses. Just did this working on a control valve.
     
  4. scottwolowich

    scottwolowich Well-Known Member

    Joined:
    May 31, 2019
    Messages:
    73
    Location:
    ontario canada
    Haha don't be distracted by the shiny new tracks - the engine compartment is all oiled up as well as the hydraulic compartment has a lot of seeping hoses that travel in ungodly places through the chassis of this machine. She looks pretty good but I know she needs some attention this year so I don't end up with a breakdown on a job next season! And once it's all cleaned up and disassembled what better time to paint it? I'm definitely hunting around for some zip ties or colored wires to make taking apart these hoses go smoothly. Thanks for checking in.
     
    Vetech63 and FlatTire like this.