25
OS 170 Fertilizer Spreader OM
Set-up and Operation
Spread Pattern Adjustments
Before attempting any spread pattern adjustments, make
sure the actual spread pattern has been determined.
Spinner Blade Positions
The spinner blades are the primary means of adjustment.
1
To adjust a spinner blade, remove the nut and washer (1)
from the bolt securing the blade to the spinner. Reposition
the blade and reinsert the bolt into the appropriate hole,
securing with washer and nut.
NOTE:
Any adjustment to a blade must also be
duplicated to the blade opposite the spinner
shaft. Also, spinner blade settings should be
identical to the opposite spinner.
Rear Deflector Adjustment
1
2
2
To adjust rear deflector (1), loosen the nut and washer (2)
on each side of deflector. Slide the deflector forward or
back accordingly. Retighten hardware when deflector is
in the desired position.
Spinner RPM
Check the spinner RPM with tractor throttle at operating
speed - “PTO speed” for PTO powered spinners. Hold
an electronic or mechanical tachometer near one of the
spinners to check the spinner speed.
NOTE:
For spreaders with spinner speed sensor, speed
can be checked from the controller.
Driving
Interval
(Spread
Width)
Spinner
Speed RPM
Pattern
Type
Spinner Blade
Setting
1
2
3
4
25 ft.
495
Pattern 1
Triangle
100%
Overlap
3
2
3
2
NOTE:
Spinner blade hole number increases as blade is moved
rearward. 1-2-3-4-5 when facing RH spinner; and 5-4-3-2-1
when facing LH spinner.
5
4
3
LH
Front of
Machine
RH
2
1
5 4
32
1
5 4 3 2 1
54
32
1
1
2
3
4
5
1 2
34
5
1 2 3 4 5
12
34
5
WARNING:
Spinners rotate at high speed.
Do not get hands or tachometer too close
when checking spinner RPM.
(Procedure continued on following page.)
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