Great Plains ADC2220 Operator Manual - Manual (Page 72)

68 ADC2220 Table of Contents Index Great Plains Manufacturing, Inc.
167-073M Table of Contents Index 2012-10-17
Quick-Change Sprockets
These are a single pair of sprockets, one 20T, one 30T,
which are exchanged between the (upper) DRIVING
shaft at a gearbox and the (lower) DRIVEN jackshaft at a
meter.
To change these sprockets:
Refer to Figure 85
1.
Loosen the idler and remove the gearbox output
chain.
2. Remove the lynch pins at both sprockets.
3. Put each sprocket on the other shaft. Secure with
lynch pins.
4. Re-mount the chain, engage the idler for
1 ⁄
2
inch
(6 mm) slack in the top span, and secure the idler
bolt.
Meter Box Gears
These are a single pair of gears, one 17T, one 54T,
which are exchanged between the (upper) DRIVING
meter jackshaft and the (lower) DRIVEN flute shaft at a
meter.
Refer to Figure 86
1.
Remove the lynch pins at both gears.
2. Put each gear on the other shaft. Secure with lynch
pins.
Gearbox Shifter
Fine control of meter rate is provided by the gearboxes,
which offer a selection of 25 gear ratios, 5 gear settings
each on two shifters at the left side of the cart.
Refer to Figure 87
Before changing gearbox settings, the gearbox clutch
must be disengaged. There is one clutch for each
gearbox, mounted on the step weldment.
1. Pull the spring-loaded pin away from the clutch
handle , to release the handle.
2. Push the handle toward the cart to disengage the
clutch.
Note: To shut down bin metering, leave clutch handle
disengaged.
Figure 85
Quick-Change Sprockets
16148
DRIVING
DRIVEN
1
1
Figure 86
Meter Box Gears
14882
DRIVING
DRIVEN
Figure 87
Gearbox Clutch
16214
1
2
1
2