Weather-Rite TT Series, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 25: M
AINTENANCE
135 of 198
Drive Belts and Sheaves Check for b elt ride in the groo v e. In m u ltiple groo v e dri v es, b elt ride sho u ld b e
u niform. Check groo v e w ear area for w ear. Side w all of groo v e sho u ld b e
straight, not dished o u t. Bottom of groo v e sho u ld sho w no signs of b elt con-
tact.
Shea v e alignment, set scre w torq u e and b elt tension sho u ld b e checked after
8, 24, and 100 ho u rs of operation after initial start- u p. Vis u ally inspect b elts
and shea v es for excessi v e w ear. If b elts ha v e a slick, glazed look, the b elts
are slipping. Check dri v e capacity and b elt tension.
Ne v er replace only one b elt in a u sed set, as u sed b elts w ill elongate.
Replace the entire set if replacement is necessary.
See Page 134, Section 25.2 and Page 123, Section 24.2.2 .
Blower Bearin g
Lubrication
The b lo w ers u se pillo w b lock and flange b earings; they sho u ld b e re-l ub ri-
cated e v ery 3,000 ho u rs of operation or 6 months, w hiche v er occ u rs first. The
recommended l ub ricant is Shell Al v ania #2 or S3 grease. To re-l ub ricate the
b lo w er flange/pillo w b lock b earings, b e s u re that the grease fittings on the
b earing ho u sing (or air handler ca b inet w all in the case of extended grease
lines) are clean. Apply the recommended grease to the fitting w ith a lo w -pres-
s u re grease g u n and add slo w ly w hile the shaft is sp u n b y hand. Do not o v er-
grease. O v er-greasing w ill red u ce the ser v ice life of the b earings. Cons u lt the
b lo w er man u fact u rer for grease capacity recommendations as capacities v ary
b y model.