Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1128 - Manual (Page 22)

6. Installation
22 PNEG-1128 Chain Loop System without Controls
Drive Assembly
The Chain Loop System is powered by an electric 1750 RPM motor.
IMPORTANT: Use the proper size motor to ensure satisfactory operation. Too small of a motor will not
supply the horsepower required to achieve capacity and damage to the motor may occur.
Too large of a motor may cause high stress on components resulting in shorter life.
See Page 13 for motor size specifications.
IMPORTANT: Use the motor sheave furnished. If other size sheaves are used or substituted, improper
chain speed and unsatisfactory operation will result.
Mount the sheaves as close to the belt guard back as possible. Align sheaves by using a straight edge,
placed across the outer faces of both sheaves. Secure in place using taper lock bushing. Be sure drive
keys are properly installed. Check sheave alignment again after sheaves are secured to shafts.
Install the belts onto the sheaves and set belt tension. To tighten belts, turn the 3/4" nuts on the motor
mount rods to raise the motor mount assembly. Raise all the rods the same distance so the motor mount
assembly is parallel with the top.
Check that all fasteners are tightly secured. Close and fasten belt guard.
The gear reducer is shipped without oil. It is necessary to add the proper amount of oil before running. Use
a high grade petroleum base, rust and oxidation inhibited R and O gear oil. Follow the instructions on the
reducer name plate, warning tags and in the installation manual attached to the reducer.
Figure 6C Sample Drive Assembly
Unit Size 8" 10" 12"
Recommended Chain Speed 325 325 400
Corner Shaft RPM 93 93 83
CAUTION
Keep all safety shields and devices in place.