Repair
10
3A4347D
7.
Tap piston rod out of cylinder with a soft
hammer or flip over and tap piston rod
out against a bench.
8.
Clean and inspect parts.
9.
Use a 1/4” hex driver to unscrew piston
seat retainer from the piston.
10. Remove, clean, and inspect Ball and
seat. Replace if necessary. O-ring at the
bottom may require a pick for removal.
11. Remove and discard the upper throat
packing with glands from the cylinder.
Remove and discard the lower packing
with glands from the cylinder.
Assemble Pump
1.
Soak leather packings in SAE 30W oil for
one hour before assembly.
2.
Install ball with new o-ring and seat in
piston rod.
NOTICE
If using a pick to remove the O-ring use care
to avoid damage to the machined surfaces.