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One time I had to find a big metric thread for a water main pressure tester ......really urgent as city council engineer was coming ......anyhoo ,it was list as 32 mm somthing or other in the documents .......couldnt find one anywhere ,or anyone who had a clue.......then I...

A slugger in 1 1/2 is useful for removing the spring pack bolts on the Hendrickson beam suspension .

That old Cat 12 was driven every where on the streets ......all sorts of breakdowns from zero maintenance .......even with brakes working ,only two wheel brakes ( four wheel was an option,) stopping 12 tons ........manual gearbox ,six forward...

When you throw a spanner down between the bosses feet ,thats the one

OP also needs to fix the mating bar welded to the hoe frame.

Yah but ......give a man a shovel and match him up to a toy backhoe .

A thin hydraulic oil will be OK ......oil sold as hydraulic jack oil for Porta Powers ............ .I dont use motor oils ,because they often cause seals to swell .

Weld metal is much harder and tougher than pipe (try to hacksaw weld and pipe).........although I once worked at a place the boss had me reconstruct small dozer sprockets with pieces of pipe ......good enough to sell it.

Atlas Copco tried to launch 5/8 (16mm) squar drive to replace both 1/2 and 3/4 small sizes .......socket sets ,sockets , drives,rattle guns and industrial drives ........you still see odd 5/8 tools around,especially the A/C 5/8 air impacts.

I used to use up the worn 14'' chopsaw discs in a 7'' Atlas Copco air grinder ......direct drive air motor to wheel mount .......nice thing about the air grinder it would stop almost immediately when you released the trigger

Sometimes with hydraulic fittings ,there is a thin hex under a flare nut ..........this hex must be held to loosen the flare nut , or the pipe twists .......for this you need thin spanners .......one situation where a shifter doesnt suit.

Yep ...size must be deep pressed in ......no need for CrMo or maker ,just size ......a lot of el cheapo stuff is either laser or silver paint marked ......not good enough.

The commonest place Ive seen really big nuts is old tractor drive axles ....a single big nut on the stub axle shaft holding a cast iron hub onto a keyed taper or a spline....I have a OEM hex ring that would be around six inch........ring end is forged the shaft welded on.

There is another pine here called ''swamp cypress pine ''.......fallen trees can lie on the ground for 20 years and never rot or be eaten by termites .....its also rock hard if you try to cut it with an axe .....I know this because I had rows of them along the fences ...they are a terrible...

To see Japanning ,look at an old Singer sewing machine .

I was pulling a Cat 12 grader hub .....pumped the gage up to 10,000 psi and it woulnt move ......this clown there was jumping up and down on the hub doing a monkey act ,when I hit it with a sledge ,the hub flew off ,the clown was bowled over ......Grader hub is very heavy ,a big lump of...

Id imagine Facom is an expensive way to buy pipe ......I used the 7/8 size hex drill rod ......you can literally stand on the end of a 7ft long drill rod in a wheel nut spanner ,and bounce up and down on it to free up a Budd wheel nut ,and it does not bend ........Sandvik Coromant drill rod .

If the rings arnt used ,big high quality double open end spanners of all sizes are cheap as scrap metal......I have lots that I have ''cut and shut'' to fit forklift hyraulics and other difficult applications .

Dont worry about length , you use an extender on spanners that big .......basic strength is more relevant.

Same here .....one of each ,bought 1994 or so . Chinese metric is definitely superior .....I have broken one Indian sae open end ,probably using a extender