Reznor YDHA - Page 30

Form O-Y, PN 273647R5, Page 30
Check Wheel Drive Components
Motor - The motor bearings are pre-lubricated and do not need additional lubrication.
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Pulley - The pulley is secured to the drive motor shaft by a set screw. The set screw
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secure.
Belt - The belt is of urethane stretch material and is designed to provide constant ten-
sion. There is no type of adjustment. Inspect the belt for proper tracking and tension.
If a belt needs replaced, it must be replaced with a factory-authorized replacement
(see P/N’s below). Follow the wheel manufacturer’s instructions.
NOTE: A properly tensioned belt will turn the wheel immediately after power is
applied with no visible slippage during startup. The belt should track approximately
1/4” from the outer edge of the rim. If the belt or any other component needs
replaced, use only factory-authorized replacement designed for the purpose. Follow
instructions provided by the wheel manufacturer.
Ƒ Fold the piece of paper to use as a feeler gauge. Position the folded
paper between the wheel surface and the seal. Turn the wheel so that
the seal is lined up with a segment spoke.
Ƒ Adjust the seal toward the wheel surface and slide the feeler gauge
(folded paper) along the length of the spoke. When a slight friction
is detected on the feeler gauge (folded paper), tighten the screws.
Recheck the clearance with the feeler gauge.
Ƒ Repeat the procedure on the other three seals.
Ƒ When the unit is started, start and stop the wheel several times to verify seal
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The belt should be approximately 1/4” from the outer edge of the rim.
Wheel
Rotation
Folded Paper
Feeler Gauge
Seal
Seal
Adjusting Screws
(When adjusting
seal, loosen only;
do not remove.)
Slide seal (shown in gray) toward wheel
until a slight friction on the feeler gauge
is detected when gauge is moved along
the length of a spoke. Repeat with all seals.
FIGURE 21 -
Checking the Seals
(cont'd)
Part 30" Wheel 36" Wheel 46" Wheel 52" Wheel 58" Wheel
Belt 235370 235371 235372
295000
Wheel
Motor
235373
(208/230/1)
235374 (208-230/460/3)
235375 (575/3)
Segment 262495 262497 235376
295001
Segment
Set
262496 262498 235377
295002
4.0 Maintenance/Service Procedures - Power Exhaust & Energy Recovery
(cont'd)
Wheel Replacement Parts
4.2 Energy Recovery Wheel, Option EW (cont'd)
Contact Factory
for Details