The ornamental design for a palletjackadapter, as shown and described.
FIG. 1 is a perspective view of the pallet jack adapter showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a left elevational view thereof;
FIG. 4 is a right elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a back elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines showing a fork lift and a pallet jack adapter in FIG. 1 are for the purpose of illustrating environment and form no part of the claimed design.