Re-Assembly Procedures - ITW Dynatec DYNAMELT D15 Series Technical Documentation Manual

Page 8-4 Disassembly
Revised 10/14
Pump O-ring Replacement:
1. Remove the pump from the ASU (see instructions on
previous page).
2. Remove the external pump seal from its groove on the
back of the pump.
3. Reference the pump exploded-view illustration (in Chapter
10) for your specific pump.
4. Install the new seal.
5. Re-assemble components.

Re-Assembly Procedures

Unless noted, the ASU's re-assembly is simply the reverse sequence of the disassembly proce-
dures. However, the following "cautions" should be followed (whenever they apply) for proper
re-assembly:
CAUTION: In general, all O-RINGS AND SEALS should be replaced whenever
hot-melt equipment is re-assembled. All new o-rings should be lubricated with
o-ring lube (PN N07588).
CAUTION: TAPERED PIPE THREADS are found on air line fittings used with the
pump air supply and on the outlet filter manifold. Apply thread sealant (PN
N02892) whenever tapered pipe threaded parts are re-assembled.
CAUTION: SOME FITTINGS used for adhesive on the ASU have straight threads
and o-ring seals. Use of thread sealant is not necessary with these parts, but the
o-ring seals should be clean and lubricated. Tighten straight-threaded parts and
fittings until their shoulders are firmly seated against the pump body (or other
surface). Excessive torque may damage straight-threaded parts and the use of
power wrenches is not recommended.
CAUTION: HOT-MELT RESIDUE should be cleaned from parts before they are
re-assembled, particularly from threaded parts. As a precaution against adhesive
residue preventing proper re-assembly, threaded parts should always be
re-tightened at operating temperature.
D15/D25/D45 V6 DCL ASU Manual #20-63
Pump
ITW Dynatec
Pump O-ring