Tjernlund SS1R SideShot (Discontinued Version - Pre UC1 Universal Control) 8504046 Rev 05/95 - Manual (Page 19)

MAINTENANCE
WHEEL INSPECTION (DIAGRAM U)
1. The SS1-R blower wheel must be inspected annually. Particulates, such as soot, oil impurities and sheet rock dust, can
prevent proper venting and will cause noise and vibration. Follow instructions, below for motor/wheel assembly removal.
2. Clean all particulate from wheel with a soft metal wire brush and soot cleaner. Clean the pocket of each blade, as well as the
rest of the wheel.
3. A wheel that exhibits large amounts of particulate or appears to be out of round should be replaced with a new wheel.
Instructions for wheel replacement are listed below.
REMOVAL AND REPLACEMENT OF MOTOR/WHEEL ASSEMBLY (DIAGRAM U)
Disconnect power supply to the SS1-R and heating equipment when servicing the SS1-R. Failure to do so may result in personal
injury and/or equipment damage.
1. Remove electrical box cover.
2. Disconnect the two motor leads from the terminal strip.
3. Remove motor bracket screw from electrical box.
4. Holding the motor, apply firm pressure towards the plenum of the SS1-R and remove the six motor mount nuts. Note: Hold the
assembly firmly; failure to do so could damage internal parts.
5. Slide motor/wheel assembly from Plenum. Grasp only the motor casing; do not damage wheel, shaft or other components on
Plenum. Do not rest assembly on wheel.
WHEEL REPLACEMENT (DIAGRAM U)
1. Loosen set screw from wheel hub by using a 5/32” allen wrench.
2. Twist wheel to loosen and pull off of motor shaft. Do not pull too hard; wheel may bend. Wheels “fused” to shaft may require
penetrating oil and/or a wheel puller to facilitate removal.
3. Slide new wheel on to flat of shaft and firmly tighten set screw.
MOTOR OILING (DIAGRAM U)
The SideShot motor is permanently lubricated and requires no oiling.
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DIAGRAM U