AltaPail II Bulk Melters Product Manual - 第163页
Repair 10-1 Part 1121836_03 E 11/2014 Nordson Corporation Section 10 Repair WARNING! Allow only qual ified personnel to p erform the following ta sks. Follow the safety instructions in th is document and all ot her relat…
Troubleshooting
9-15
Part 1121836_03
E 11/2014 Nordson Corporation
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Repair
10-1
Part 1121836_03
E 11/2014 Nordson Corporation
Section 10
Repair
WARNING! Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
Observe Before Performing Repairs
WARNING! Risk of electrical shock. Failure to observe may result in
personal injury, death, or equipment damage.
WARNING: Disconnect equipment from line voltage before any repairs.
Risk of Burns
WARNING! Hot! Risk of burns. Wear appropriate protective
clothing/equipment.
Some components can be detached only when the bulk melter is heated up.
Relieving Pressure
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.
1. Switch off motor.
2. Set selector Raise/lower platen to 0/stop.
3. Place a container under the nozzle(s) of the applicator/assembly
handgun.
4. Applicator: Activate the solenoid valve(s) electrically or manually; or, pull
the trigger of the assembly handgun. Repeat this procedure until no more
material flows out.
5. Properly dispose of material according to local regulations.
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.