User guide

6-30 l Troubleshooting
Replacing the Desiccant Wheel
Assembly (W600 - 1000)
When desiccant becomes clogged or contaminated, you should replace the
desiccant wheel to ensure optimum performance.
1 Stop the dryer, disconnect the power, and follow proper lockout
procedures.
2 Remove the upper and lower side panels from both sides of the
dryer.
3 Remove the top cover from the dryer by removing the securing bolts.
4 Note the position of all the hoses, RTDs, and wiring connections then
remove or disconnect these from the desiccant wheel assembly.
5 If the dryer aftercooler is being used, turn off the water supply to the
aftercooler and disconnect the water lines from the aftercooler.
6 Remove the bolts securing the aftercooler assembly to the desiccant
wheel assembly.
7 Remove the bolts securing the desiccant
wheel assembly in the dryer frame.
8 If the dryer aftercooler is being used,
slide the desiccant wheel assembly
towards the front of the dryer, being
careful not to let it fall off the dryer
frame. Unbolt the aftercooler assembly
from the back panel of the dryer and
remove it.
9 Note the orientation of the desiccant
wheel assembly. Using an overhead
crane or similar device, use the lifting
rings provided and lift the desiccant
wheel assembly out of the dryer.
(continued)