Heidolph Hei-VAP Precision - Manual (Page 49)

Maintenance, cleaning, service
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Maintenance, cleaning, service
Replacing the fuses
The fuses are located on the bottom of the unit.
Readjust the vacuum seal (glassware set G6)
1 Valve 2 Center piece G6
Figure 8-2: Readjust the vacuum seal - glassware set G6
The seal in the valve (1) can be readjusted with a screwdriver.
1. Screw the valve into the G6 center piece (2) up to the stop.
2. Turn the adjusting screw clockwise until a white ring can be seen at the shaft
of the glass.
WARNING Glass breakage!
Cuts.
Work carefully; do not readjust the adjusting screw too much.
1
2
Figure 8-3: Fuse on the bottom of the unit
CAUTION The drive unit and the heating bath may be switched on
accidentally!
Injuring and burning hands.
Verify that the power switch for the base unit and the heating bath is
switched off via the pushbutton.
WARNING Risk of injuries due to retracting or entrapment!
Risk of injury.
A risk of entanglement exists on the movable parts of the unit.
Wear suitable protective clothing for activities on the rotary
evaporator with goggles and gloves.
1. Disconnect the unit from the power plug.
2. Remove evaporating flask.
3. Cool the heating bath liquid and remove the heating bath from the base
unit by disconnecting the power plug.
4. Carefully tilt the unit and pour out the bath media.
5. Dry the bath and turn it over with the bottom facing upward.
6. Remove the defective fuse by using a screwdriver.
7. Insert a suitable new fuse and tighten with a screwdriver.
The fuse has been replaced. The unit can be returned to active heating operation.