12. CLEANING, MAINTENANCE AND TROUBLESHOOTING
•
Store in a dry place, free from frost and damp.
•
Clean with a dry cloth. Never clean with water.
•
Keep the bare parts of the poles clean. Lubricate regularly with acid-free lubricant for better
contact with the yokes and to prevent corrosion.
•
Also lubricate the pivots regularly.
If the heater produces a loud vibrating sound:
• Stop the heating cycle
• Are all contact surfaces clean and greased?
• Is the yoke positioned level on the poles?
If this is not the case, follow the instructions below to adjust the yoke.
Models with horizontal swivel yoke:
1. Remove dirt, burrs, etc., from the yoke and poles and lubricate lightly.
2. Place the yoke on the hinge point and rotate it above the poles.
3. Loosen the socket screws and the bolts on the hinge bushing by about half a turn.
4. Switch on the heater by pressing "START". The yoke now sets itself. If necessary, a plastic (dead
blow) hammer may be used.
5. When noise reduces, then tighten all bolts and switch off the heater.
50