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1044131-06
6-5
25B Air Valve and Air Motor Repair
NOTE: Before installing the snapper assembly, lubricate the crankshaft pin with
9.
the slot in the snapper. Install the screws and lock washers (36, 37) through the
bracket and valve body.
10. Gaskets (51) and O-ring (47) in valve body.
If you are not rebuilding the air motor, re-install the air valve.
Air Valve Installation
Install parts as follows, tightening all threaded parts and fasteners securely.
1.
spool.
2. Cover on air motor.
3.
4.
5. PTFE paste on air inlet nipple, screw nipple into air motor head.
Air Motor Repair
To repair the air motor, you must remove the pump from its mounting and separate the air
motor and hydraulic section.
Tools and Materials Required
The following tools and materials are needed to repair the air motor:
• small and large adjustable wrenches
• English hex wrenches
• soft-faced mallet
• retaining ring pliers
• large, clean work surface
•
• O-ring lubricant (Parker O-Lube or equivalent) (Nordson part 1612251)
• replacement parts or kits (refer to Section D1 Air Motor Parts)
Preparation
1.
cleaning solution. Refer to Flushing in Operation and Maintenance.
2.
when the pump starts to run away.
3. Perform steps 2 through 6 in Air Valve Removal on page C 1-2 to remove the air
valve.
4.
5.
used.
6. Remove the fasteners securing the pump to the mounting bracket.
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