MAINTENANCE MANUAL – ELECTRIC ROTARY DRYER
FERREX ENGINEERING LTD.
Page 6
Ref. #2278
Install the expansion joint between the vibrating inlet feeder and the drum inlet hood using
the clamps provided.
4. Fill the gearbox with oil to the oil fill level mark on the dip stick.
5. The air inlet assembly as shown on drawing 2243-4545-MC-123 will arrive in pieces to be
bolted together. The fan and the primary tube heater support frame would be anchored
(anchors by installer) to the building concrete floor after final assembly. Mount and bolt
the primary tube heater onto the tube heater support frame supplied. The un-insulated
tube heater inlet pipe will have the flanges tack welded only, for testing of the set-up,
which will allow a small amount of field adjustment, if required. Break the tack welds and
retack the flanges to the pipe if necessary to align bolts and ensure the pipe flanges are
flush. Use the garlock seals supplied for the 150# raised face flange connections to the
tube heater. After any field adjustments are completed then field weld the pipe flanges to
the pipe and bolt the inlet pipe to the fan and the primary tube heater. The primary tube
heater insulated discharge pipe would be bolted the drum inlet hood and the tube heater
discharge as shown. The flange connection to the primary tube heater would only be tack
welded to allow for a small amount of field adjustment as required. It may be required to
shim / move the tube heater and support frame if a large amount of adjustment is
required. The tube discharge pipe has an expansion joint located just after the
connection to the drum inlet hood. The discharge hood is supported with a bracket off the
inlet hood. Using the two bolts supplied, finger tightten (with jam nuts) the two bolts so
that the discharge pipe can float laterally relative to the expansion joint. After field
adjustment is complete, weld the 150# raised face flange to the discharge pipe and bolt to
the tube heater to the discharge pipe with the bolts supplied. Use the garlock seals
supplied for the 150# raised face flange connections to the tube heater. Use the small
container of paint supplied to repair paint and clean up any weld splatter. Install the pipe
insulation and insulation cladding.
6. The air discharge assembly as shown on drawing 2243-4545-MC-124 will arrive in pieces
to be bolted together. The secondary tube heater support frame is to be bolted to the
dryer drum frame as shown. The secondary heater fan support stool is then bolted to the
secondary tube heater support frame. On the opposite side of the drum, two brackets are
