Air Motor Repair
C 1-3
Part 1022914G03
E
2007 Nordson Corporation
Coupling Replacement
1. See Figure C 1-1. Install the coupling sleeve (33) over the connecting
rod (21), making sure the arrow on the side of the sleeve is pointing up.
2. Pull the connecting rod down until it contacts the plunger (A).
3. Install the two coupling halves (34) around the connecting rod and
plunger.
4. Slide the coupling sleeve over the coupling halves. Drive the sleeve
completely over the coupling halves with a rubber mallet.
5. Tighten the two set screws (32) with a
3
/
16
-in. hex wrench to
10.2
±
1 N
D
m (90
±
10 in.-lb).
Air Motor Rebuild
Air Motor Removal
1. Stop the pump in the middle of a stroke.
2. Shut off the air supply to the pump and relieve the remaining pressure in
the air supply hose. Relieve the system hydraulic pressure.
3. Disconnect the air supply hose and ground clamp.
4. Remove the coupling as described on page C 1-2.
5. See Figure C 1-2. Remove the hex nuts (36) from the air motor
studs (35), and the fasteners securing the lower cylinder head (16) to
the pump mount. Lift the air motor off the hydraulic section and move it
to a clean, flat work surface.
1300387B
35
16
Customer-supplied
fasteners
36
Figure C 1-2 Air Motor Removal
16. Lower cylinder head
35. Air motor studs
36. Hex nuts
