AD-31 Handguns Manual.pdf - 第10页

10 108 835A T echnical Data Specifications T ype of Pattern: AD-31: extrusion AD-31S: spray AD-31SW: swirl AD-31SW-WP: swirl wide pattern Maximum Operating T emperature: 230 _ C (450 _ F) Maximum Hydraulic Pressure: 10.3…

108 835A

Daily Operation

Relieving Hydraulic Pressure

Remove system pressure before disassembling and

replacing any gun components.

1. Heat the system to operating temperature.

WARNING: System or material pressurized.

Relieve pressure. Failure to observe may result

in serious burns.

2. Follow the procedures described in your applicator

technical manual to relieve system pressure. In

general, relieving system pressure requires that

you perform all of the following actions that are

appropriate for your unit:

S Systems with a piston pump:

Reduce pump air pressure to zero and

disconnect the supply (incoming) air line.

Place the air pump ON/OFF switch in the

OFF position.

S Systems with a gear pump:

Turn the motor speed dial to 0%.

Place the motor ON/OFF (or START/STOP)

switch in the OFF (or STOP) position.

3. Shield the area and the operator.

4. Trigger all handguns to relieve any trapped

hydraulic pressure.

5. Place the trigger lock in the locked position

(see Figure 2).

6. Reduce air pressure to the handgun by reducing

gun air pressure to zero at the regulator (spray

and swirl guns only).

WARNING: Hot! Risk of burns. Wear

heat-protective clothing, safety goggles and/or

heat-protective gloves depending on the symbol

shown.

7. Wear heat-protective safety gloves.

8. Place a pan under the drain valve and drain the

unit manifold by following the procedure described

in the applicator technical manual.

CAUTION: Equipment damage can occur if the

applicator drain valve is turned with anything

other than a screwdriver. Use only a screwdriver

to turn the drain valve.

9. Use a screwdriver to open the drain valve.

10. Allow the manifold to drain as completely as

possible.

11. Use a screwdriver to close the drain valve.

12. Properly dispose of the drained adhesive.

Daily Maintenance

Cleaning Exterior Surfaces

Clean all exterior gun and nozzle surfaces daily. Use a

cleaning fluid such as Nordson Type R fluid.

Accumulated hot melt material forms char, which can

cause unreliable operation of the applicator.

WARNING: Risk of death or serious injury from

explosion or fire if Nordson Type R fluid is heated

above 245 _C (475 _ F). Do not use Type R fluid

on surfaces that are above 245 _C (475 _ F).

108 835A

Weekly Maintenance

Cleaning the Nozzle

Clean gun nozzles weekly unless operating experience

indicates that a different schedule must be followed.

Depending on several factors, nozzle cleaning may be

required more or less frequently than once a week.

Among the factors affecting cleaning frequency are the

plant environment and the adhesive used.

CAUTION: Gun nozzles can be damaged if an

open torch, drill, or broach is used for cleaning.

Use only a pin-type probe to clean a nozzle.

To clean a nozzle on a Series AD-31 Handgun:

1. Heat the system to the adhesive manufacturer’s

recommended application temperature.

2. Relieve the system hydraulic pressure. (Refer to

Relieving Hydraulic Pressure in Daily Operation.)

3. Disconnect and lock out power to the main circuit

breaker for the applicator input power line.

4. Place the trigger lock in the locked position

(see Figure 2).

5. Use an appropriate size wrench to loosen the

nozzle.

4203003

Figure 3 Removing a Nozzle

6. Remove the nozzle.

7. Place the nozzle in a container of Nordson Type R

fluid and heat the container to the adhesive

melting point using a controlled heating source.

WARNING: Risk of death or serious injury from

explosion if Nordson Type R fluid is heated

above 245 _C (475 _ F). To maintain Type R fluid

at a safe temperature, use a controlled heating

source, such as a deep-fat fryer or hot plate with

a temperature controller.

WARNING: Risk of death or serious injury from

fire hazard if Nordson Type R fluid is heated

using an open flame or an unregulated heat

source. To maintain Type R fluid at a safe

temperature, use a controlled heating source,

such as a deep-fat fryer or hot plate with a

temperature controller.

WARNING: Risk of death or serious injury from

fire or toxic fumes. Use extreme care in selecting

a cleaning fluid other than Type R fluid. Cleaning

fluids other than Type R may present a toxic or a

fire hazard, even at room temperature.

CAUTION: Sludge formation can occur on a

nozzle if an incompatible cleaning fluid is used

with the hot melt adhesive. If a fluid other than

Nordson Type R fluid is used, test the fluid with a

small sample of the adhesive for compatibility

before using the fluid in the hot melt system.

NOTE: Another method of cleaning nozzles is to

place them in an ultrasonic cleaner filled with Type

R fluid.

8. Clean the nozzle bore by using a pin-type probe.

4204026

Figure 4 Cleaning a Nozzle with a Pin-type Probe

9. Reassemble the nozzle onto the gun.

10. Restore the system to normal operation by

following the startup procedures in the applicator

technical manual.

108 835A

Technical Data

Specifications

Type of Pattern: AD-31: extrusion

AD-31S: spray

AD-31SW: swirl

AD-31SW-WP: swirl wide pattern

Maximum Operating Temperature: 230 _C (450 _F)

Maximum Hydraulic Pressure: 10.34 MPa (1500 psi)

Extrusion Nozzle Orifice Diameters:

Standard: 0.5 to 2 mm (0.020 to 0.093 in.)

Extended: 0.6 to 4 mm (0.025 to 0.156 in.)

Spray Pattern Width/Nozzle:

AD-31S: 51 to 203 mm (2 to 8 in.)

AD-31SW: 6 to 38 mm (0.25 to 1.5 in.)

AD-31SW-WP: 38 to 152 mm (1.5 to 6 in.)

Spray Air Pressure:

AD-31S: 0.28 to 0.56 MPa (40 to 80 psi)

AD-31SW: 0 to 0.1 MPa (0 to 15 psi)

AD-31SW-WP: 0.03 to 0.56 MPa (5 to 80 psi)

Maximum Air Consumption:

AD-31S: 4 scfm

AD-31SW: 1.2 scfm

AD-31SW-WP: 2.5 scfm

Electrical Requirements: 230 VAC, 50/60 Hz

115 VAC, 50/60 Hz

100 VAC, 50/60 Hz

Weight: AD-31: 0.8 kg (1.75 lb)

AD-31S: 1.5 kg (3.25 lb)

AD-31SW: 0.8 kg (1.75 lb)

AD-31SW-WP: 0.8 kg (1.75 lb)

Dimensions: Length-mm Depth-mmWidth-mm

(in.) (in.)

(in.)

AD-31, AD-31SW,

AD-31SW-WP 188 (7.38) 160 (6.31) 41 (1.62)

AD-31S 213 (8.40) 210 (8.25) 53 (2.08)

Nozzles must be ordered separately.

Recommended range.

Includes operating air and spray air requirements.

Without nozzle.