Buhnen HB 5010, Translation Of The Original Operating Manual

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Set-up / Retrofit
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7.3 Changing the hot melt material
Make sure first that only a small amount of the old hot melt material is in the tank.
Before changing a product, inform yourself whether the old and new hot melt materials are
compatible.
If the products are compatible, the old hot melt material can be rinsed out with the new
material.
If the products are not compatible, then proceed as follows:
1. Drain the tank, hose, and pistol as far as possible. Activate the trigger until the hot
melt material no longer discharges.
2. Completely rinse the tank system with a cleaning agent coordinated to the new hot
melt material.
3. Fill in the new hot melt material.
7.4 Releasing system pressure
The system pressure must be released before removing a heated hose, or for mainte-
nance and repair works.
To do so, proceed as follows:
1. Turn off the pump.
2. Place a collection basin under the nozzle of the manual application unit.
3. Activate the trigger of the manual application unit until the hot melt material no longer
discharges.
7.5 Dismantling a heated hose
Required tools: • 2 open-end wrenches size 19
Danger of burns
due to hot metal parts, hot melt material, and hot melt material vapors. Therefore, always
wear heat protection gloves during the following work steps.
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Please also note the operating instruction of the heated hose (Section 3 of this manual).
To dismantle a hose, carry out the following work steps:
1. Heat up the tank system, or at least the hose to be dismantled and the pump to at
least 100 °C. This prevents the hose from being damaged during dismantling.
2. Release the system pressure (see Chap. 7.4).
3. Turn off the tank system using the main switch.
4. Detach the electrical connection of the hose. Unscrew the cap nut of the plug and
remove it.
5. Unscrew the hose from the pump using open-end wrench size 19.
6. Secure the hose connection at the pump using the second open-end wrench size 19.
Attention!
If a different hose will be attached to the tank system, then it must also be heated up to
approx. 100 °C in order to prevent damage.
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