ITW Dynatec DYNAMELT D15 Series Technical Documentation Manual page 168

Page 7-34 Troubleshooting
Revised 10/14
Problem
Adhesive leak at pump
shaft seal.
Seal assembly
Adhesive leak at pump- 1. O-ring in pump's rear
to-hopper interface.
Rear Plate
O-ring
Pump
Possible Cause
1. Pump seal is incorrectly
positioned inside the seal
and bearing assembly.
2. Pump seal inoperative.
plate is inoperative.
2. Pump retaining nuts are
missing or loose.
3. Helicoil insert pulled out
of hopper.
D SERIES V6 DCL ASU Manuals
Solution
1. Remove seal and bearing from pump.
Verify that all components are
correctly positioned.
2. Remove seal from pump, inspect it
and replace it if worn or damaged.
Be sure there are no burrs or other
sharp edges on pump shaft or on
installation tools that could damage
a new seal.
1.Remove seal from pump, inspect it
and replace it if worn or damaged. Be
sure there are no burrs or other sharp
edges on the rear plate o-ring groove
that could damage a new o-ring.
2. Verify that all four pump retaining
nuts are tightly assembled to the
studs.
3. Remove pump and inspect hopper.
Repair or replace hopper as necessary.
ITW Dynatec