Maintenance
Belt Tension
• The fan sheave (A) and motor sheave (B) must be in axial alignment. Shafts must be parallel in both vertical and horizontal planes. • The sheaves must be in radial alignment. Align with a straightedge (C). When sheaves are of unequal width, align center of sheaves. • Check fan belts for proper tension and for signs of wear. Belt should sag slightly at bottom of sheaves. Belt (D) is properly adjusted. Belt (E) is too loose. Belt (F) is too tight.
Lubricating Bearings Ensure not to over grease the bearing as to not rupture the seal and create an area accessible to dust and grit, which can cause bearing failure. The fan may have a greasing chart by which should be followed in lieu of this manual if present. Acceptable lubricants: Shell – Gadus S2 V100, Mobil – Mobilith SHC100, Exxon – RonexMP, Mobil – Mobilith SHC220 Inspecting Burner Flame Profile Inspect the burner flame profile by observing the flame while the oven is at high fire (coming up to temperature). The flame should be mostly blue with orange/yellow tips. If the flame is more yellow than blue, the combustion system should be checked by qualified technician to ensure proper air/fuel ratio is being achieved. Lubricating Door Hinges The door hinges can be lubricated by attaching a grease gun to the grease zerk on each hinge. Acceptable lubricants: Shell – Gadus S2 V100, Mobil – Mobilith SHC100, Exxon – RonexMP, Mobil – Mobilith SHC220
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