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Repair
Remove the Piston Rod, Throat Seal, and
Throat Bearing
F
. 80 Piston Rod Assembly Installation
IG
1. Prepare for Melter Pump Repairs. Follow the
steps on page 88.
2. Use a screwdriver and rubber mallet to loosen the
retaining nut (615).
3. Insert a hex key through piston rod hole (616) to lift
the piston rod assembly (616), throat seal (613), and
throat bearing (614) out of the pump.
94
615
614
613
616
Piston Foot Service Procedure
Note the u-cup
orientation
641
F
. 81: Piston Foot Assembly
IG
1. Remove the Piston Rod, Throat Seal, and Throat
Bearing. Follow the steps on page 94.
2. Loosen the piston valve (618) from the piston rod
(616).
3. Separate the piston bearing (642), piston u-cup seal
(641), and the piston ball (617).
4. Reassemble the piston assembly. Torque the
piston valve (618) to 47–53 ft-lbs.
616
617
642
618
3A7259C
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Table of Contents
Troubleshooting
