National Vacuum Equipment 5314 Owner's Manual & Operating Instructions - Belt Drive
18
| 5314 Blower
www.natvac.com | 800.253.5500
·
DO NOT USE A HAMMER TO SLIDE THE COUPLERS ONTO
THE SHAFT AS THIS MAY RESULT IN BLOWER DAMAGE
LoveJoy Coupler - Please see the LoveJoy website
www.lovejoy-inc.com
for
details on the alignment.
·
Failure to properly align the couplers can cause premature
wear of the blower bearings and coupler sleeve.
·
Couplers must be guarded to prevent entanglement.
BELT DRIVE
We do not recommend the use of cogged, synchronous or timing belts.
The driving pulley from the prime mover must be mounted on the intake
side of the blower to prevent unloading of the blower bearings.
Use a narrow hub sheave and insure that the inner hub face is not more than
1/4” from the face of the gearbox. Be sure to also use an adjustable belt
tensioning system to allow compensation for belt wear.
·
Excessive belt tension could damage the blower and prime
mover.
·
Belts and pulleys must be guarded to prevent entanglement.
Use matched sets of V-belts to insure uniform torque transmission. If a belt
goes out, replace the whole set.
DRIVE SHAFT
U-Joint operating angles at each end of the shaft should always be at least 1
°
to prevent yoke bearing failure, but do not exceed the manufacturers maxi-
mum recommended angles for the operating RPM.
U-Joint operating angles on each end of a drive shaft should always be equal
within 1
° of each other to cancel an angle vibration.