yep, there's 3 of them + and adjusting nut, 2 on the cylinder head side of the fuel filter , one of those 2 kinda of hidden below. All held with nuts on radiator side.

You'll need 2 13mm wrenches so you can hold nuts on the opposite side. Do not take them out all of the way or remove nuts, only loosen them enough to get the pump to move once you've loosened up the adjuster nut (nut is staring at you when you look at engine from drivers side and is also 13mm).

just did this job to do alternator belts. a PITA the first time, but once you've done it once...

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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)