Repair
7-19
E1999 Nordson Corporation
All rights reserved
104 330H
Issued 8/99
Manual 1-8
Clean all components of the hydraulic section. Inspect and replace worn
or damaged parts. Check the plunger for scoring, cracking, or pitting. If
the surface is not smooth, replace the plunger. Ball checks can be tested
by placing the seat on top of the ball and filling with water. If water leaks
around the ball, replace the ball and seat as a matched set.
See Figure 7-6. Use the following procedure to assemble the hydraulic
section.
NOTE: Lubricate all O-rings with O-ring grease before installation.
1.Install the ball cage (14) and ball (13) into the siphon housing (11).
Thread the ball seat (12) into the siphon housing and tighten securely.
2.Install the lower packing gland (7) into the siphon housing (11). See
Figure 7-6 for packing gland orientation.
3.Install the ball cage (16) and ball (15) into plunger (17). Thread the
ball seat(10) into plunger and tighten securely.
4.Install the high pressure sleeve (6) over the lower packing gland
previously installed in the siphon housing. Install the lockwashers (9)
and hex head screws (8) and tighten securely.
NOTE: If installing Type U packings, you will have to use considerably
more effort to drive the plunger assembly into the packing gland.
5.Install the plunger (17) into the high pressure sleeve (6). Use a
rubber mallet to drive the end of the plunger through the lower
packing gland (7).
6.Lubricate the exterior O-rings (2) of the new upper packing gland (5).
Use a rubber mallet to drive the upper packing gland over the plunger
into the high pressure sleeve. See Figure 7-6 for packing gland
orientation.
7.Install the solvent chamber (1) over the upper packing gland (5) and
orient it so that the chamber filler cup port is on the right, when
viewing entire hydraulic section assembly from the front (facing outlet
port of high pressure housing).
8.Install the lockwashers (4) and hex head screws (3) and tighten
securely.
9.Reconnect the hydraulic plunger and air motor connecting rod. Install
the solvent chamber to the motor base and secure it with bolts
andlockwashers.
Cleaning and Inspection
Assembly
To Next Page
Loading...
Need help?
General
