Sterling EX909 - Manual (Page 27)

Page 27
Figure 1: Belt Tensioning Chart
New Belt Used Belt Design HP
Min Max Min Max
1 442 443 438 440
2 466 469 459 462
3 490 495 480 485
5-2 Replacing Timing Belts
1. Remove the guard cover.
2. Find and loosen the two (2) interior guard plate screws near the
gearmotor timing belt drive from inside the sprocket guard
housing.
3. Loosen the gear motor hold-down screws and move the motor
towards the granulator rotor to allow more slack in the belt.
4. Remove the old timing belt.
5. Install the new timing belt over the sprockets.
6. Move the motor back from the granulator to reduce belt sag.
7. Verify the alignment between the gear motor and rotor
sprockets; then tighten the gear motor hold-down screws.
8. Adjust the interior guard plate to re-center the opening around
the gearmotor shaft and tighten the two (2) mounting screws.
9. Replace the guard cover.
5-3 Lubrication Specifications and Considerations
All beside-the-press granulators and accessories are supplied with
bearings that are pre-lubricated at the factory.
Mounting the bearings external to the cutting chamber results in
low maintenance and trouble-free operation.
The bearings used require a high quality, lithium-based EP
(extreme pressure) type of grease, which conforms to the NGLI
Grade 2 consistency. This grease has been chosen due to its
Belt Span
Deflection = Belt Span
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