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12A 955 Engine Removal
12A 955 Engine Removal
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2 years 9 months ago #235777
by Fat Dan
Found something to get you started
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade
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2 years 9 months ago #235778
by d9gdon
Tractor has to be running to lift the bucket all the way up and place angle iron safety lock on the lift cylinders. The manual instructs you to pull the pin out of the hard bar that crosses underneath the oil pan and then lift the front end of the tractor up (the whole tractor then rotates on the final drives). I put a 6' piece of channel iron clamped (welded) into place on the tracks under the front of the tractor and then sat the tractor nose down onto 8"x12" wood blocks sitting on the channel iron under the frame rails. I made sure nothing could ever slip or fall. Then you can get the oil pan off and easily get to everything underneath. I replaced sleeves and pistons that way.
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Fat Dan
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2 years 9 months ago - 2 years 9 months ago #235802
by Old Magnet
If you need clarification of some of the illustrations I can provide as needed from my original manual but I'm not into scanning and having to enhance 51 pages. I find direct scanning without rework does not produce a satisfactory illustration.
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Fat Dan
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2 years 9 months ago #235813
by bboaz
OK: Thanks, Old Magnet. I am going to see if I can unhook the clutch enough to get the motor out with the clutch still connected to the flywheel. As soon as I get the top cover off, I think I will be able to see what else needs to be removed.
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Fat Dan
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2 years 9 months ago #235818
by Old Magnet
Don't forget about the bottom bolt that locates the suction tube for the oil pump. Lots of these have wound up with broken castings when they were not disconnected from the main case.
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Fat Dan
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2 years 9 months ago #235821
by rax200
Hi bboaz,
this is the bolt that OM is talking about on the bottom of the casing, I had to manufacture a pickup pipe because some previous owner forgot to undo it and then lost the bits.
Regards
Daryl
1937 RD4 4G4368
1940 D4 7J3717
1942 D4 7J9915SP
1942 R4 6G2550SP
1944 D4 2T6584SP
1945 D4 2T8978SP
1946 D4 5T6271
1956 D4 7U37855
1954 DH226 S/N 89 Howard Tug
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2 years 9 months ago #235931
by bboaz
Ordered and received my Jensales copy of the Service Information for Caterpillar No. 955 Traxcavator. This is an exact copy of the Caterpillar manual Old Magnet posted earlier. Photo quality, and the written explanations are very good. Makes for some interesting reading. "Before removing the diesel engine, it is necessary to remove the Traxcavator frame. See the topic, TRAXCAVATOR FRAME REMOVAL. Seems I did things correctly only backwards, but the engine will come out. A lot of work but now I can put the motor on a stand, work on it, and run it before I put it back. I have since removed the Traxcavator Frame which will make the installation a lot easier, and I have found things that need attention which might have not showed up before.
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Fat Dan
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2 years 9 months ago - 2 years 9 months ago #235932
by bernie
Keep working safely bboaz-Good news on the Jensales photos and visual clarity. What you report regarding your Jensales manuals is never always the case. I initially had one and it was poor quality.
bernie
Last edit: 2 years 9 months ago by
bernie. Reason: Add clarity
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Fat Dan
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2 years 9 months ago #235935
by Fat Dan
WooHooo Boy that feels good ... Congrats
Take good notes cuz I'm going to be picking your brain here soon.
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade
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Posts: 738
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Thank you received: 194
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2 years 9 months ago #235962
by Fat Dan
O yeah behind the governor and the injection pump Traxcavators get a lot of rocks and dirt others don't because the load is normally picked up over the nose of the machine and finds it's way down past the shroud the and gets packed in quit hard.😲 use care that you done brake a casting getting them off.
ACMOC Member
Traxcavator: 60, 955E 12A08263; 57, 955C 12A04040; 57, 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320; 9K9982
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Tractor w/ Bullgrader Blade
Please Log in or Create an account to join the conversation.
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Antique Caterpillar Machinery Owners Club
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12A 955 Engine Removal
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