Northern Industrial Tools 998255 Owner's Manual - page 9
Page of 14
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19. Mounting the Pulley and Belt
(Figure N, O)
a. Clean the Shaft (#35) of all plastic protective material and other debris. Also clean out debris
from Drum Pulley (#49) center hole.
b.
Position the Drum Pulley (#49) so that the Set Screw hole (#48) is facing outward. Squarely
push the Pulley center onto the Shaft so that the groove in the Drum Pulley engages the Key
(#47). The Pulley should be flush with the step on the Shaft. Thread the Set Screw (#48)
and tighten in place.
Note:
Do not pound the Drum Pulley onto the Shaft. Damage can occur resulting in a loose fit.
c. Place the V Belt(#61) around the Drum Pulley(#49)
20. Mounting the Motor
(Figure P)
WARNING:
The Motor is attached to the Outer Motor Base Cover (#43) by a power
cable. While installing the Motor, have a helper hold the Cover out of the way, without placing
tension on the power cable.
a. Put the Motor (#42) over the V Belt (#61), make sure motor pulley (#51) is directly under the
Drum Pulley.
b. Allow the motor to drop as far as possible under its own weight in order to tension the drive
belt. Tension is correct when there is approximately 1/4" total deflection at the centre of the
belt run when using moderate thumb pressure.
Note:
This step may require adjusting the Motor Mount Plate (#40) up or down.
c. Tighten the mounting bolts progressively ensuring the support plate is parallel to the ground
.
This step requires removing the Motor (#42) first.
Note:
It usually requires multiple attempts on (step b, step c) to get the right position of Motor
Mount Plate (#40).
Bolt &Washer
Washer &Locknut
Motor Mount Plate (#40)
Inner Motor Base
Cover (#39)
Channels
Bolt &Washer
Washer &Locknut
Cushion (62)
Locknut (55)
Fixed plate (38)
Bolt & Washer
Channels
Fig. L
Fig. M
Set Screw (48)
Drum Pulley (49)
Key (47)
V Belt (61)
Fig. N
Fig. O