StediFlo
t
57:1 Pump
22
Part 1601882-01
E
2012 Nordson Corporation
Upper Packing Gland Assembly
1. Install the saddle ring (7), smooth surface down, into the solvent
chamber.
2. Install a new packing assembly (8) into the solvent chamber as follows:
a. Black PTFE V-ring (8.1), crowned surface down)
b. Leather V-ring (8.2)
c. PTFE V-ring (8.3)
d. Leather V-ring (8.4)
e. PTFE V-ring (8.5)
f. Counter ring (9)
NOTE:
The packing assembly should not extend above the top of the
solvent chamber. There should be approximately 2
−
3 mm of space
between the top of the solvent chamber and the counter ring so that the
packing can be adjusted later.
Hydraulic Section Assembly
1. Apply O-ring lubricant to the gaskets (11, 13) and install them into the
middle housing (12).
2. Install the spring (10) into the middle housing.
3. Inspect the O-ring (2) in the groove on top of the solvent chamber.
Replace the O-ring if damaged.
4. Coat the plunger with solvent fluid and push it, small end first, through
the upper packings and solvent chamber.
5. Couple the plunger to the air motor axle.
6. Adjust the solvent chamber so that the ID plate is to the front.
7. Apply O-ring lubricant to the threads of the tie rods (24), then screw
them into the air motor.
NOTE:
Screw the two side tie rods about half way in; the rest all the way in.
8. Push the middle housing (12), spring (10) first, over the plunger and
onto the solvent chamber.
9. Adjust the middle housing so that the fluid outlet is to the front.
10. Install the other spring (28) into the bottom of the middle housing.
11. Install the pressure cylinder over the plunger (14) and onto the middle
housing. Have a second person help you, if necessary.
12. Install the flange over the pressure cylinder and ends of the two side tie
rods.
13. Install washers (25) and nuts (26) onto the two side tie rods.
14. Evenly tighten the two nuts to push the pressure cylinder and middle
housing up against the solvent chamber.
