Oil Fill and Dipstick

Cap should fight tightly and not leak

To check the oil, I would remove the dipstick, wipe it clean, reinsert it and remove it again to get a true reading and if needed, add oil

Air Compressor

Should be securely mounted, no loose, missing or corroded bolts

The hoses from the compressor should have their fasteners securely mounted at both ends

The hoses should not be cracked, pinched or leaking air, water or oil

The pulley to the compressor should be securely mounted with its castle nut and cotter pin

The pulley should be in line with the other pulleys

The belt to the compressor should not be dry, cracked or frayed and have no more than 3/4 inch play at the center between pulleys

Power steering reservoir

Should be securely mounted with no loose or missing nuts or bolts

The tank should not be corroded, cracked or leaking

I would use the dipstick to measure the oil level

The cap to the filler and dipstick should fit tightly and not be leaking 

This is where I would add power steering fluid, if needed

This is a gear driven power steering pump. I showed it at the beginning on the other side of the engine

All hoses coming from the reservoir to the pump and steering box should be securely mounted, with fasteners at both ends

The hoses should not be swollen, cracked or leaking

Steering gear box should be:

Securely mounted, with no loose, missing or corroded bolts

It should have no illegal welds or be cracked or leaking

Be well greased using the Zerque fitting to grease it

Steering Linkage:

Consists of the pitman arm, drag link and steering arm

They should be securely mounted, no loose or missing nuts or bolts

The arms should not be bent cracked or have any illegal welds

The arms should have its castle nuts and cotter pins securely mounted, be well greased at the pivot points and have the dust covers in place to prevent dirt from entering the pivot points

The steering column should not be cracked, bent or have any illegal welds. The u-joint should be secure with no loose or missing bolts and be well greased 

No damage or tears to the covers

And to finish the engine compartment:

I would check all hoses for leaks

All the wires for loose, broken or bare wires

Check the engine for any major leaks