Grain Systems PNEG-707GSI - Manual (Page 233)

22. Metering System
PNEG-707 12', 18', 24' and 30' GSI Commercial Tower Dryer 233
Metering System
1. Remove any burrs, pits, and corrosion from metering drum drive shaft weldment. (See Figure 22L.)
2. Slide metering drum bearing on metering drum drive shaft, flush with bearing thrust collar. Tighten
set screw. (See Figure 22M.)
3. Remove top metering drum hub for installation of metering drum drive shaft.
4. Insert drive shaft weldment up through bottom metering drum hub. Replace top metering drum hub
on drive shaft. Secure top and bottom metering drum hubs with Q1 taper bushings. (See Figure 22N
and Figure 22O on Page 234.)
5. Lower metering drum with drive shaft onto bearing support.
NOTE: Metering drum should have 1/4" to 1/2" clearance above hopper floor.
Level metering drum.
Bolt metering drum bearing to bearing support.
Use 3/8" x 1", grade 5 bolts and nuts.
6. Assemble four (4) gearbox torque arms and gearbox plate as shown in Figure 22P and
Figure 22Q on Page 235.)
Bolt gearbox torque arms to inner hopper with existing bolts. Bolt gearbox plate with 1/2" x 1",
grade 5 bolts and nuts.
7. Slide gearbox set collar (2-3/8") onto metering drum drive shaft. Do not tighten set screw yet.
(See Figure 22R on Page 235.)
Figure 22L Cleaning metering drum drive shaft
weldment.
Figure 22M Tightening set screw on metering
drum bearing.