Military CAT D7G Dozer Was a Steal...Until It Wasn’t

-We’re back in the shop working on this military CAT D7G dozer — one of the cleanest, lowest-hour tractors we’ve ever had. Until we found a few surprises. It’s time to go through the entire machine: service, filters, leaks, and a full check-over before Kevin and the crew get it ready for paint.

But of course… nothing ever goes exactly as planned.
Follow along as we drain fluids, rebuild cylinders, and discover a few surprises hiding inside this old war machine’s winch.

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00:00 – Cold Start & Overview of the D7G
00:40 – Intro & Walkaround
01:00 – Oil Drain & Undercarriage Inspection
02:40 – Filter Replacement Struggles
04:40 – Air Filter & Fuel Filter Change
07:30 – Checking Transmission & Suction Screens
10:40 – Hydraulic Filter & Fluid Refill
13:30 – Winch Oil Inspection – Milky Surprise
15:00 – Draining and Cleaning the Winch
18:00 – Fabricating a New Battery Box Cover
19:00 – Back in the Shop – Cylinder Seal Kits Arrive
21:00 – Fixing Sticky Controls & Linkages
23:30 – Rebuilding the Tilt Cylinder
27:00 – Vice Explosion & Seal Replacement
30:00 – Reassembly & Hydraulic Line Fixes
33:00 – Testing Blade & Hydraulics
35:00 – More Cylinder Work (and Another Mess)
37:30 – Second Cylinder Rebuild & Refit
40:00 – Testing the Dozer Outside
42:00 – First Push Test & Winch Operation
45:00 – Major Winch Failure Found – To Be Continued


🔧 What We Do in This Video
-Full service and inspection on the CAT D7G
-Change every filter and fluid (engine, transmission, hydraulics)
-Diagnose and rebuild leaking tilt cylinders
-Drain and flush the winch – and find out why it failed
-Fabricate a custom battery box cover from scratch
-Test run and push dirt before teardown for paint
-C&C Equipment stickers and merchandise can be found here

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