H. MAINTENANCE Periodic inspection and maintenance is required on all mechanical and electrical equipment in order to keep machinery operating safely and efficiently. For instance, cars require periodic: oil changes; replacement brake pads, radiator flushes; tire replacements; spark plug replacements; etc. The same is true for GARN® WHS equipment. This section describes the periodic maintenance that is required to keep your unit in top shape, operating safely and efficiently. GARN® Blower Wheel Puller part # P-0075 is available at the GARN® Parts Store: www.garnparts.com. Blower Wheel Gasket/Wheel Replacement & Removal (as necessary) The blower wheel must be removed in order to: • Replace a damaged wheel • Replace a non-operable or damaged motor • Replace a worn or damaged motor mount gasket • Clean an out-of-balance wheel
Tools required:
• Slotted wheel/hub/gear puller or GARN® Wheel Puller part #-0075 • 3/8” drive socket with 5/32” Allen • Penetrating lubricant (WD-40) • Crescent/Adjustable wrench • ¼-20 tap and t-handle tap wrench. • Hi temperature anti-seize lubricant (Nickel-Graphite is typical)
Slotted wheel puller with ¼-20 bolts required.
A properly sized wheel puller MUST be used to remove the blower wheel. DO NOT attempt to remove the blower wheel by prying on the wheel rim or hub as damage will result. The GARN® blower wheels are dynamically balanced for 3450 RPM and distortion of the rim will cause significant vibration resulting in early blower motor bearing failure. 1. Unplug the motor and remove the motor/blower assembly. 2. Set the assembly “wheel up” on a flat surface; stabilize it to prevent tip over. 3. Apply penetrating oil to the 2 set screws located in the hub and to the end of the motor shaft. 4. Loosen the two set screws with an Allen wrench. 5. Using the ¼-20 tap carefully clean the two threaded holes in the hub.
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GARN® WHS 1000 and WHS 2000 Manual | © HY-C® Company LLC | October 2024
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