StediFlo
t
57:1 Pump
21
Part 1601882-01
E
2012 Nordson Corporation
Cleaning and Inspection
Clean all parts thoroughly with a compatible solvent or waterborne cleaning
solution. Carefully inspect all parts. Replace parts that are worn, cracked,
pitted, or scored. Replace all parts included in the seal kit and repair kit.
The parts lists notes both the wear items and items included in the kits.
Pressure Ball Check Assembly
1. Clamp the plunger (14) flats in a bench vise, bottom up.
2. Install the retaining pin (23) and ring (15) in the piston.
3. Install the retaining ring (16) with retaining ring pliers.
4. Install a new ball (17), gasket (18), and valve seat (19) in the piston.
5. Apply removable threadlock adhesive to the threads of the screw (20),
then screw it into the plunger and tighten it securely.
Siphon Ball Check Assembly
1. If removed, install the pin (33) into the pressure cylinder (32). Apply
removable threadlock adhesive to the threads of the set screw (34) and
install it in the cylinder.
2. Install the ball (35), gasket (36), and valve seat (37) into the pressure
cylinder. Make sure the inset face of the seat is facing the ball.
3. Apply hydraulic pipe thread sealant/adhesive to the threads of the inlet
coupler (38) and thread it into the pressure cylinder.
4. Clamp the flats of the coupler in a bench vise.
5. Use a wrench on the flats of the pressure cylinder to tighten it onto the
coupler.
Lower Packing Gland Assembly
1. Install the counter ring (31), smooth surface down, into the pressure
cylinder.
2. Install the packing assembly (30) into the pressure cylinder as follows:
a. Black PTFE packing ring, (30.6), crowned surface up
b. Dual saddle ring (30.5)
c. Leather packing ring (30.4)
d. PTFE packing ring (30.3)
e. Leather packing ring (30.2)
f. PTFE packing ring (30.1)
g. Counter ring (29)
NOTE:
The packing assembly should not extend above the top of the
pressure cylinder. Always use new packings.
