Gardner Denver HELIFLOW 8 Series, Руководство пользователя

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HF-7-604 Page 28
SECTION 6
DISASSEMBLY INSTRUCTIONS
1. Initial Blower Inspection, Oil Draining and Cover Removal
NOTICE
1. Numbers in parenthesis ( ) refer to balloon numbers in figures and in assembly drawings.
2. Oil seal should be replaced during overhaul as a matter of service policy.
.
Exercise care not to damage the Sump cover oil seal bore when removing the oil seal.
1. Inspect the interior of the blower for any signs of rotor contact (rotor to rotor, rotor tip to case, rotor end to bearing
housing). If there are signs of contact then the various clearances should be measured with feeler gauges prior to
any disassembly.
2. Inspect the areas around the drive shaft seal, vent passages in the bearing housing, and air cylinder for any signs
of oil leaks.
3. Drain the oil from the gear and drive end sumps by removing their drain plugs (37). A small amount of
oil from each sump should be saved in the event that an oil analysis will be required.
4. Mark all parts with a marker so that they can be reassembled in the same position (Cylinder, Bearing
Housings, Rotors etc.).
5. Remove the screws (29) and (30) from the drive end (5) and gear end sump covers. Remove the drive end sump
cover by sliding it o
ff
the drive shaft. Remove the gear end sump cover.
6. Inspect the drive shaft in the area of the oil seal for damage and wear. Inspect the oil seal (26).
7. Support the external surface of the drive end sump cover near the oil seal with blocks of wood. Drive the oil seal
out of the cover with small hammer and punch. Discard the seal as it will not be reused.