(Vol. XXVII, 1917, p. 89)
For digging the grave or doing other mechanical work preparatory to the burial, non-Jews may be, and always have been, employed. Only such services as are performed directly for the dead during the burial are obligatory to his fellow-Jews.
K. Kohler and Jacob Z. Lauterbach
References are: Beitsa 61a; Yad, Hil. Yom Tov 1.23; Shulchan Aruch, Orach Chayim 626.1.
Responsa Committee (1980)