37-1-615 Page 28
PERIODIC INSPECTIONS – A well-organized maintenance program will provide for periodic inspection of
the blower, drive and components. These inspections may prevent major repair and downtime.
1. Observe the blower for vibration, heating, noise, oil seal leaks, and excessive shaft air leaks.
2. Check for proper operation of the filters, coupling, drive, power unit, relief and check valves,
gauges and other controls.
3. Disconnect the drive and turn the blower by hand to check for drag, tight spots, bearing wear
(radial and axial) and gear backlash. Rotation should be free with no indication of drag or
metallic interference.
4. Inspect the interior through the inlet or discharge port for cleanliness, corrosion or parts
contact.
Rotating components will cause severe injury in case of personal contact. Keep hands sway
from the blower inlet and discharge ports.
5. Check tightness of all screws and bolts.
SOME COMMON CAUSES OF BLOWER FAILURE
1. Poor air filter maintenance or incorrect selection.
2. Inadequate lubrication (wrong, dirty or low oil).
3. Backflow of materials into the blower.
4. Discharge pressure or inlet vacuum above blower rating.
5. Blower speed below minimum rating.
6. Blower speed too low for discharge pressure or inlet vacuum.
BLOWER OVERHAUL – Refer to Disassembly Section, page 36, and Assembly Section, page 40.
REPAIR PARTS – When ordering parts, specify Blower Model, Size and Serial Number.
Reference numbers shown in the left hand column of the parts list are used to help locate parts shown on
the drawing and sectional view. DO NOT ORDER BY REFERENCE NUMBERS.
After locating the reference number, the part number may be found for your particular blower under the
correct Model Number Column. Specify exactly the number of parts required (see column “Qty.”). DO
NOT ORDER BY SETS.
Teflon is a register trademark of DuPont
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