Nordson 1050729 Instruction Sheet

Instruction Sheet
Pump Service Kit - P/Ns 1050729 (7.8 cc), 1067875 (7.8 cc PA), 1086938 (7.8 cc machined), 1050728 (4.9 cc),
or 1069146 (4.9 cc PA)
This instruction sheet describes the replacement of the pump assembly
in a DuraBluet adhesive melter. Kit P/Ns 1067875 and 1069146 contain
high-temperature, chemical resistant O-rings (referred to in this
instruction sheet as PA).
Remove the Drive Assembly
1.
Pump
operation section of the melter product manual for information
about operating the melter.
2.
completely empty. For D10 and D16 melters, close the tank
shut-off valve (position 2 is closed; position 1 is open.).
Pump O-rings
Machine key
3.
M8 x 90 mm screws w/washers
(spare)
4.
disconnect switch.
5.
Parker lubricant
P/N 1032546C04
WARNING: Risk of personal injury or equipment damage! Refer to
the safety information provided in the melter manual before
servicing the melter. Failure to comply with the safety information
provided can result in personal injury, including death.
Note:
Retrofit kit P/N 1064357 is required
when replacing the pump assembly on a
melter that has a sheet metal-type drive
assembly bracket (shown to the right).
Allow the melter to heat up to Ready status. Refer to the
For D4 melters, operate the melter until the tank is
Switch the melter off.
WARNING: Risk of electrocution! The control switch does not
remove high-voltage power from the melter. Before opening the
electrical compartment door, ensure that the local power
disconnect switch is in the off position and locked. Failure to
properly disconnect the power from the melter can result in
personal injury, including death.
Disconnect power to the melter at the local power
Disconnect all hoses from the manifold.
Old design New design
6.
Remove the right-side coupling cover.
7.
Remove the RTD and the heater from
the pump body. Save the screws, washer,
and, if applicable, the RTD retaining clip.
Note:
On some melters, a retaining clip
is not present because the RTD is housed
in a slot between the pump housing and the
manifold.
1
8.
Remove the four M8 pump screws
and matching washers that attach the pump
2
to the bottom of the tank.
Note:
When reassembling the drive
assembly to the tank, tighten the M8 pump
screws to 16.3–17.6 N•m (12–13 ft-lb.).
Required Tools:
Phillips-head screwdriver
10- and 13-mm wrenches
3- and 4-mm hex keys
Continue
4/08