Landa HOT2-1100 Operator's Manual

Also see for HOT 2-1100: Operator's manual Service manual

Landa HOT2-1100 Operator's Manual Manual pdf 11 page image

HOT SERIES PRESSURE WASHER OPERATOR’S MANUAL 11LANDA HOT • 96-626 • REV. 2/04Air AdjustmentMachines are preset and performance tested at the fac-tory - elevation 100' above sea level. A one-time initialcorrection for your location will pay off in economy, per-formance, and extended service life. If a smoky or eye-burning exhaust is being emitted from the stack, twothings should be checked. First, check the fuel to be cer-tain that kerosene or No. 1 home heating fuel is beingused. Next, check the air adjustment on the burner. Anoily, black, smoky fire indicates a lack of air and the airband should be moved to allow the air to flow throughthe burner. Sharp eye-burning white fumes indicate toomuch air flowing through the combustion chamber. Theair band should be moved to allow less air to flow throughthe burner.To adjust: Start machine and turn burner ON. Loosentwo locking screws found in the air shutter openings (re-fer to illustration) and close air shutter until black smokeappears from burner exhaust vent. Note air band posi-tion. Next, slowly open the air shutter until white smokejust starts to appear. Turn air shutter halfway back to theblack smoke position previously noted. Tighten lockingscrews.If the desired position cannot be obtained using only theair shutter, lock the air shutter in as close a position ascan be obtained, then repeat the above procedure onthe air band setting.Initial Air Adjustments: Allow sufficient air to obtain aclean burning flame by loosening the lock screws andmoving the air shutter and if necessary the bulk air band.Reduce the air supply until the flame tips appear slightlysmoky, then increase the air just enough to cause theflame tips to appear absolutely clean.Removal of Soot and Heating CoilIn the heating process, fuel residue in the form of sootdeposits may develop between the heating coil pipe andblock air flow which will affect burner combustion. Whensoot has been detected on visual observation, the sooton the coil must be washed off. Follow these steps toremove the coil.1. Disconnect hose from pump to inlet side of the coil.2. Disconnect electrical connection to the thermostat.3. Remove quick coupler from inlet and discharge sideof coil.4. Remove burner assembly from combustion cham-ber.5. Remove the 3-3/8" bolts from each side of coil andtank assembly (these bolts are used to fasten tankand handles to chassis).6. Disconnect 1/2" pipe nipples from inlet and dischargeside of coil.7. Remove top tank wrap exposing insulation and coiland fold back insulation.8. Remove bolts that hold down coil to bottom wrap.9. Remove coil.10. Replace or repair any insulation found to be torn orbroken.Coil ReinstallationReinstall new or cleaned coil by reversing Steps 9 through1 above.Fuel PumpAirAdjustmentScrewAir Band