LOFTNESS OS 170, Owner'S Manual And Parts Book

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13 OS 170 Fertilizer Spreader OM
Variable Rate Ready (VRR) (Cont’d
Calibrate Spreader Constant (VRR)
The spreader constant should be calibrated every time
the metering gate is adjusted.
Catch Test
1. Fill spreader with product.
2. Measure product density using scale provided.
3. Weigh empty container and place container under
spreader discharge to collect fertilizer.
4. Engage hydraulics for conveyor. DO NOT engage
spinners.
5. Place controller console in test mode.
a. Enter spreader constant for metering gate
opening.
b. Enter product density.
c. Enter desired application rate, spread width,
and application speed.
d. Zero out total/field volume.
6. Turn on conveyor and collect fertilizer.
Recommend 1,000 lb. for increased accuracy.
7. Turn off conveyor.
8. Weigh full container. Determine actual weight of
fertilizer in container (full weight – empty weight)
9. Calculate new spreader constant.
New spreader constant = old spreader constant *
(console weight/actual weight).
NOTE: If catch test is not feasible, new spreader
constant can be calculated by using same
formula and spreading a known amount of
fertilizer on a field. Weigh spreader before and
after test to determine amount actual amount of
fertilizer applied.
Set-up and Operation
Engaging the Conveyor (VRR)
The conveyor is engaged from the controls in the tractor
cab. Hydraulic valves on the tractor need to be activated.
Set the valves to continuous flow.
IMPORTANT: When spreader not in use, or to avoid
unintended application, turn off hydraulic
flow from tractor.
Mechanical Ground Drive
Prepare For Field Use
1
2
Push lever down to
engage ground drive.
1. Loosen the handle (1). Push down on the lever (2) to
engage the ground drive. Retighten the handle (1).
IMPORTANT: Be sure the chain engages the hub
sprocket properly. If it slips to one side,
raise the chain and realign before lowering.
2. Ensure hydraulic connections to tractor have been
made.
(Procedure continued on following page.)