Repair
6-6
Part 104373
−
03
E
2015 Nordson Corporation
Plunger Replacement
1. See Figures 6-2 and 6-3. Remove the hydraulic housings and the
packing glands.
2. See Figure 6-5. Use two wrenches to unscrew the plunger (3) from the
piston shaft (1).
3. Remove and discard the piston shaft O-ring (2).
4. Lubricate a new piston shaft O-ring and install it on the piston shaft.
5. Install a new hydraulic plunger on the piston shaft . Use two wrenches
to tighten the plunger on the piston shaft securely.
1
2
3
Figure 6-5
1. Piston shaft
2. Piston shaft O-ring
3. Plunger
Siphon Ball Check Valve Rebuild
Rebuild both siphon ball check valves at the same time.
1. See Figure 6-6. Remove the four screws, lock washers, and flat
washers (9, 10, 11) securing the siphon manifold (4) to the hydraulic
housings (1). Separate the siphon manifold from the hydraulic
housings.
2. Thread the seat tool (8), furnished with the pump, into the seats (2). Pull
on the tool until the seat breaks loose from the hydraulic housing.
Remove the balls (7).
