AltaPail II Bulk Melters Product Manual - 第142页

Maintenanc e 8-5 Part 1121836_03 E 11/2014 Nordson Corporation External Cleaning External clea ning prevents pollution cre ated by production from causing bulk melter malfunc tions. CAUTION: O bserve th e unit’s Deg ree …

Maintenance

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Part 1121836_03

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Initial Maintenance

Heating and cooling that occur during daily operation can cause screwed

parts to loosen, resulting in leakage.

Re-tighten the following components with a torque wrench:

Component Torque

Note

Example Pos. Designation [Nm] [lbin]

1 Plug 20 176 A

2 Hose fitting 25 220 A

4 Pump: Fixing screws 25 220 A, B

5 Safety valve 15 133 A

NOTE A: Re-tighten while the material is still soft (approx. 70 ° C/158 ° F, depending on the material)

B: Re-tighten crosswise

Maintenance

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External Cleaning

External cleaning prevents pollution created by production from causing bulk

melter malfunctions.

CAUTION: Observe the unit’s Degree of Protection when cleaning. Refer to

page 12-3, Electrical Data.

CAUTION: Do not damage or remove safety labels. Damaged or removed

safety labels must be replaced by new ones.

Remove material residue only with a cleaning agent recommended by the

material supplier. Heat with an air heater if necessary.

Remove dust, flakes etc. with a vacuum cleaner or a soft cloth.

Visual Inspection for External Damage

WARNING! When damaged parts endanger the operating safety and/or the

safety of personnel, switch off the bulk melter and have the damaged parts

replaced by qualified personnel. Use only original Nordson spare parts.

Changing Type of Material

NOTE: Before changing the material type, determine whether the old and

new material can be mixed.

May be mixed: Remaining old material can be flushed out using the new

material.

May not be mixed: Purge thoroughly and clean melting plate with a

cleaning agent recommended by the material manufacturer. Refer to

page 8-6, Cleaning Melting Plate.

NOTE: Properly dispose of the old material according to local regulations.

Maintenance

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Purging with Cleaning Agent

Place a container of cleaning agent in the bulk melter to purge. Then feed the

cleaning agent until it comes out free of material residue.

CAUTION: Use only a cleaning agent recommended by the hot melt

material manufacturer. Observe the Material Safety Data Sheet for the

cleaning agent.

Before starting production again, flush out residue of the cleaning agent

using the new material.

NOTE: Properly dispose of cleaning agent according to local regulations.

Cleaning Melting Plate

The melting plate is standardly release-coated. This makes it easy to clean.

Cooled material can usually be pulled off of the melting plate; if necessary,

first heat to approx. 60 ° C / 140 ° F.

CAUTION: Do not use hard or metallic tools to clean. Do not use wire

brushes! This could damage the release coating. Use only soft aids

(wooden or PTFE spatula or soft brush).