AltaPail II Bulk Melters Product Manual - 第165页
Repair 10-3 Part 1121836_03 E 11/2014 Nordson Corporation Replacing Motor NOTE: Perform work only when t he material i s soft (approx. 70 ° C/15 8 ° F, depending on mate rial); otherwise the Cardan joint can not be turne…
Repair
10-2
Part 1121836_03
E 11/2014 Nordson Corporation
Replacing Gear Pump
WARNING: System and material pressurized. Relieve bulk melter pressure
before disconnecting pressurized components (e.g. hoses, pressure
sensors). Failure to observe can result in serious burns. Refer to page 10-1,
Relieving Pressure.
WARNING: Hot! Risk of burns. Wear heat-protective gloves.
Detaching Gear Pump
NOTE: Detach the gear pump only when the material is soft (approx.
70 ° C/158 ° F, depending on material).
1. Remove the cover and detach the Cardan joint (1) from the pump shaft.
2. Detach pump.
3. Allow the bulk melter to cool to room temperature.
3
1 2
Attaching Gear Pump
1. Clean the sealing surfaces on the plate and pump. If necessary, heat
material residue with a hot air fan, then remove.
2. Put the pump in place. Ensure that the suction hole (2) is positioned
properly.
3. Screw the pump into place:
a. Apply high temperature grease (Refer to page 8-2, Processing
Materials) and tighten by hand, such that the pump and plate have
thermal contact
b. Wait until the pump and plate are at the same temperature
c. Tighten the fixing screws crosswise using a torque wrench. Torque:
25 Nm / 220 lbin.
4. Attach Cardan joint. Ensure that the marks (3) line up.
5. Put the cover into place.
Repair
10-3
Part 1121836_03
E 11/2014 Nordson Corporation
Replacing Motor
NOTE: Perform work only when the material is soft (approx. 70 ° C/158 ° F,
depending on material); otherwise the Cardan joint can not be turned.
Observe when replacing:
S
Verify that the electrical connection effects the desired direction of
rotation (see arrow).
Replacing Safety Valve
WARNING! For safety reasons, the safety valve may not be disassembled.
The complete valve must be replaced every time.
WARNING: System and material pressurized. Relieve bulk melter pressure
before disconnecting pressurized components (e.g. hoses, pressure
sensors). Failure to observe can result in serious burns. Refer to page 10-1,
Relieving Pressure.
WARNING: Hot! Risk of burns. Wear heat-protective gloves.
Observe when replacing:
S
Replace the valve only when the bulk melter is heated. Otherwise the
sealing rings could be damaged by charred material
S
Apply high temperature grease to all threads and O-rings (Refer to
page 8-2, Processing Materials)
S
Tighten valve with a torque wrench. Torque: 15 Nm (133 lbin).
Size 19
Repair
10-4
Part 1121836_03
E 11/2014 Nordson Corporation
Replacing O-rings
WARNING: System and material pressurized. Relieve bulk melter pressure
before disconnecting pressurized components (e.g. hoses, pressure
sensors). Failure to observe can result in serious burns. Refer to page 10-1,
Relieving Pressure.
WARNING: Hot! Risk of burns. Wear heat-protective gloves.
When leakage occurs, e.g. at the hose connections, the O-rings must be
replaced. Observe the following:
S
Clean and lubricate O-ring groove. Nordson recommends special high
temperature grease; refer to page 8-2, Processing Materials.
S
Also lubricate O-ring
S
Do not use removed O-rings again.
S
Tighten hose connection and blind covers with a torque wrench to
9.5 Nm.