The lance tube travels inside the hot boiler zone and requires frequent structural checks.
Ensure the internal steam feed tube terminates within the lance tube past the front plate. If it’s too far back, steam can condense and drip, leading to severe corrosion of the inner lance wall.
After overhaul, you must perform a "dry run" – manually cycle the blower without steam for 10 full cycles, checking for smooth travel and correct limit switch activation. clyde bergemann soot blower maintenance manual work
Full teardown, replace all packing sets, change gearbox oil, lap valve seats, rebuild carriage rollers. Full System Overhaul Conclusion
Remove the valve bonnet bolts and extract the stem assembly, disc, and return spring. The lance tube travels inside the hot boiler
+------------------------------------------------------------------------+ | CLYDE BERGEMANN SOOT BLOWER | | | | [Rear Bracket] ====== (Twin Rack & Cable Track) ====== [Front Wall Box] | | || || | | (Motor)--> [ TRAVELING CARRIAGE ] || | | || || | | [Feed Tube (Fixed)] ====> [Lance Tube (Moving)] ===> Boiler | +------------------------------------------------------------------------+ Lance Tube and Nozzles
Re-insert the spring, disc, and stem. Torque the bonnet bolts in a cross-star pattern to prevent uneven sealing gasket compression. 4. Alignment and Travel Adjustments After overhaul, you must perform a "dry run"
The manual strictly forbids cycling a soot blower without steam pressure if the boiler is hot. Dry cycling can melt the packing rings due to radiant heat absorption. Always follow the manual’s instruction to purge with steam immediately upon cycling.
Remove the valve bonnet and extract the stem assembly.