2 ways to tell if #1 is on the Compression Stroke.

Remove the Valve Cover and observe if both the Intake and Exhaust Valves are closed on #1 cylinder.

Remove a Glow Plug and carefully shove your Finger in the hole. When it starts up on the compression stroke you will feel Air pushing out on your finger.
If the Fuel Injectin Shop did not put Oil in in your Fuel Injection Pump; after it is on the Engine you need to add Oil.

The only instrctions I have are fore ao 615 Engine but they appear to be the same.
You turn the Fuel Injection Pump Drive Gear clockwise until the flat/missing tooth or teeth lines up with the marke on the Fuel Injection Pump Bearing Flange (at about 11 O'clock).
Because it is under Fuel Injection Pump Camshaf is under spring tension they want you to put a little counter clockwise turn and let the spring pressure roll it back counter clockwise 2 teeth. That relieves the spring tension.

At that point with the Crankshaft timing marks at 47degrees BTDC on the Compression Stroke you stick the Fuel Injection Pump into the Engine but stick the Pump in so that the Slots where the Bolts or studs that hold down the Fuel Injection Pump are centered in the Slots (so you are able to rotate the Fuel Injection Pump either way).
Install the Bolts or nuts that hold the Fuel Inection Pump to the Block.

Next you need to do what is neccesary to do the Drip Timing.

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84 300D, 82 Volvo 244Gl Diesel