Goff 2460, Operation And Maintenance Manual

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C-FACE BLAST WHEEL MAINTENANCE
WHEEL DISASSEMBLY
1. Ensure power is disconnected following OSHA approved "LOCK-OUT TAG-OUT"
procedure.
2. Remove the blast housing cover (Item 6) (refer to illustrations on page 2-4 and 2-5) by
loosening the nuts (Item 30) on each end of the cover, swing the fasteners (Item 26) clear and
remove the lid.
3. Lift the top liner (Item 14) out.
4. Remove the feed spout (Item 13) by removing the two 3/8" hex nuts (Item 28) holding it in
place.
5.
Remove the two 3/8-16 NC x 1" hex head bolts (Item 43) from the recessed slotted holes in
the cage adapter.
6. Remove the socket head cap screw (Item 40) attaching the impeller to the motor shaft . A
special lock washer (Item 24) locks the screw in place. The control cage (Item 10) and
centering plate (Item 9) can now be removed.
7. The blast wheel blades (Item 21) can now be removed. If the blades are not badly worn, they
can be used again. To aid in the re-installation process, the blades should be numbered I
thru 8 in a clockwise direction before removal. To remove a blade, push it toward the center
of wheel and rotate bottom free of the block (Item 19), then lift it out.
8. Inspect all the parts which have been removed to determine whether they are worn or
damaged to the extent that replacement is necessary.
9. Replace the top liner (Item 14) and housing cover. Bolt cover in place and run blast wheel
assembly (no abrasive).
NOTE: If the assembly runs smoothly and there is no noticeable noise or excessive vibration,
no further disassembly will be necessary. The worn parts can be replaced and the
blast wheel re-assembled. However if vibration or noise is still present it will be
necessary to complete the disassembly and remove the remaining rotating parts.
I 0. Remove the housing cover and lift out the top liner.
1 1. Loosen the compression cap screws (Item 41) on the right and left side of the blast housing.
The end liners (Items 15 & 48) can now be removed through the top or bottom of the blast
wheel housing. Tap the liner gently with a rubber or plastic mallet to ease removal.
12. Remove the four hex head bolts (Item 27) holding the motor mount (Item 7).
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