hsr-benelli S-series Service Manual page 87

Position the shaft (4) inside the pump body (1).
Position the first ball-bearing (5), using a press to make it
touch.
Position the liner (6).
Position the second ball-bearing (7), using a press to make it
touch.
Fix the ball-bearings with the external (8) and internal
(9)circlips.
ver.2009_03 Page 87/215