NIPPON POP RIVETS AND FASTENERS PNT800 Series Instruction Manual page 21

Figure 7-15
(5) Dump the old hydraulic oil from the handle.
(6) Pour the new hydraulic oil into the hole in the handle (Figure 7-17).
Pour the oil in until its surface is level with the backup ring (Figure 7-18).
Figure 7-17
(7) Push the air piston assembly in and move it back and forth with hand five
or six times (Figure 7-19), then pull it back out again. Check the oil side. If
the oil side has fallen or air mixes, repeat steps (6) and (7).
Handle lower
Figure 7-19
Air piston assembly
Truss screw (４pcs.)
Oil
Oil
Figure 7-20
19
Chamber
Tube
Handle
Figure 7-16
Back up ring
Penta. seal
Figure 7-18
Tube insertion hole
Air piston assembly
Tube
Tube insertion hole
PNT800
Air piston assembly
Tube
Figure 7-21