Pump Hydraulic Section Assembly - Nordson 3100V Series Customer Product Manual

Hydraulics B
1-21
Pump Hydraulic Section Assembly
See the illustrations in Pump Hydraulic Section Disassembly as you
perform the
following reassembly steps.
You
can also use the pump
parts list illustration
at
the end of this section.
1.
Remove all adhesive from the pump seal cavity and the retaining-ring
groove.
2.
Slip
the piston onto the hydraulic shaft and place the step washer on
the socket-head screw.
Apply threadlocking adhesive to the screw
threads; then installthe
screw and step washer
on
the hydraulic shaft.
Tighten to
4.074.78
N.m
(3-5
ft-lb).
3.
lnsert the hydraulic shaft
in
the pump
body.
4.
Apply threadlocking adhesive to the siphon ball seat threads; then
reinstallthe siphon ballcage,
siphon ball, and siphon
ballseat.
5.
Place the crossover tube O-ring and backup ring on the crossover
tube, apply Teflon paste to the crossover tube threads, and reinstall
the crossover tube.
6.
lf
you removed the pump body O-ring, retaining ring, washer, and
pump seal, then
a.
Apply high-temperature lubricant to the O-ring and install
it
on the
pump
body.
b.
Apply hightemperature
lubricant to pump seal and pull the
hydraulic
shaft up from the top of the pump
body.
c.
Secure
the pump body with
a
vise.
Place
the pump seal, with the
groove facing down, on the hydraulic shaft; then installthe
washer.
Slide the hydraulic shaft down to help guide the seal
and,
washer into place
in
the pump
body.
d.
lnstallthe retaining
ring in its
groove in the pump
body.
7.
lf
you removed the pump mount O-ring, retaining ring, and U-cup,
then
a.
lnsert the U-cup in.the upper face of the pump mount with the
groove facing
up.
b.
Press
the retaining
ring
in
the upper face to secure the U-cup.
c.
Apply high{emperature lubricant to the pump mount O-ring and
place
the O-ring on the upper surface
of
the pump mount.
O 2000 Nordson
Corporation
All dghts reserved
41-3000y
lssued 5/00
B1
EN-02-[3V-X-AGXXJ-2