Step 1: Disassemble the plastic part of the front handle on one side
Step 2: Slide the grip on the handle profile, notches should point to the back of EUC. Reassemble the part of the handle, except the screws marked with red arrows in the photos below.
Step 3: Slide the cover on the handle, tab on the top of the cover should align with the notch in the grip. Then install the round-headed screw (from installation pack) on the top of the cover.
Step 4: Now mount the bottom part of the cover using allen-head screw and washer. Repeat the process on the other side