Technical data

Installation

3-8

P/N 7135049A

E 2007 Nordson Corporation

VBC_Siemens

Connecting (contd.)

NOTE: For units with recirculation hoses: do not mistake recirculation

hoses for feed hoses.

If cold material can be found in the hose connection, the components (1, 2)

must be heated until the material softens (approx. 70 °C (158 °F),

depending on material.

WARNING: Hot! Risk of burns. Wear heat-protective gloves.

2. Heat the melter and hose to approx. 70 °C (158 °F).

CAUTION: Close unused hose connections with Nordson port plugs.

Fig. 3-9

Disconnecting

WARNING: System and material pressurized. Relieve system pressure

before disconnecting hoses. Failure to observe can result in serious burns.

Relieving Pressure

1. Set motor speed to 0 min

-1

(rpm). Switch off the motor(s) (Refer to

section Operation ).

2. Place a container under the air relief valves (1, Fig. 3-10) to be opened.

3. Use a screwdriver to turn the air relief valve screws counterclockwise

and open the valves.

4. Material flows out of the air relief hole, and the melter is relieved of

pressure.

Fig. 3-10

5. Use a screwdriver to turn the air relief valve screws clockwise and close

the valves.

6. Place a container under the nozzle(s) of the gun / assembly handgun.

7. 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.

8. Properly dispose of material according to local regulations.