Land Pride Rear Blades RBT4084, Руководство оператора, Страница: 21 / 34

Section 4: Adjustments
RBT4084, RBT4096 & RBT40108 Rear Blades 301-206M 11/27/18
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Table of Contents
Section 4: Adjustments
Safety First
WARNING
!
To avoid serious injury or death:
• Do not allow anyone to go near the blade while grading and
operating the controls. A person can be crushed by the unit.
• Avoid injury from a falling blade. Always check to make
sure all hardware is secured before adjusting the blade.
• Never fully extend or retract hydraulic cylinder(s) without
first checking to make sure the implement does not make
contact with tractor tires. Extending implement into the
tractor tires can result in loss of control and damage to the
implement and/or tractor.
Blade Pitch
Blade pitch can be adjusted by lengthening or shortening
the tractor’s top center 3-Point link. Increasing the blade
pitch will increase the blades digging ability.
Lengthen the link to increase blade pitch when grading
while traveling forward. Shorten the link to decrease
blade pitch.
The opposite is true if backfilling. Shorten the link to
increase blade pitch and lengthen the link to decrease
blade pitch. To help protect the 3-Way Rear Blade from
damage while backfilling, lengthen the tractor’s center
top link until the blade will move across the top of the
ground without forcing itself into the soil.
Blade Offset
Manual Offset Adjustment
Refer to Figure 2-4 on page 13:
Frame offset has 15 adjustments up to 30" left or right.
(Center position, 7 positions right and 7 positions left.)
1. Read and follow “Safety First” on this page before
offsetting the blade.
2. Manually adjust frame offset by removing hitch
pin (#11) and moving inner link (#10) to a different
hole position.
3. Replace hitch pin and secure with hair pin
cotter (#12).
Hydraulic Offset Adjustment
Refer to Figure 2-1 on page 10:
The frame can be offset hydraulically by as much as 30"
to the right or left.
1. Read and follow “Safety First” on this page before
offsetting the blade.
2. If offset cylinder is controlled by the hydraulic selector
valve, make certain the valve is set to operate that
cylinder.
3. Operate tractor control lever to change frame offset
by as much as 30" right or left.
Blade Angle and Reversing
Manual Angle Adjustment
Refer to Figure 2-4 on page 13:
There are 15 blade angle positions up to 45 degrees left
or right. (Center, 7 clockwise, and 7 counterclockwise
positions.)
1. Read and follow “Safety First” on this page before
offsetting the blade.
2. Adjust blade angle by removing hitch pin (#5) and
moving inner link (#4) to a different hole position.
3. Replace hitch pin and secure with hair pin
cotter (#6).
4. The blade may also be rotated around 180 degrees.
a. Disconnect angling link from blade turntable lug.
b. Rotate Rear Blade clockwise 180 degrees.
c. Reconnect angling link to turntable lug.
Hydraulic Angle Adjustment
Refer to Figure 2-2 on page 11:
Adjust blade angle with angling cylinder by as much as
45 degrees clockwise and counterclockwise.
1. Read and follow “Safety First” on this page before
offsetting the blade.
2. If the angle cylinder is controlled by the hydraulic
selector valve, make certain the valve is set to
operate that cylinder.
3. Operate tractor control lever to change blade angle
by as much as 45 degrees forward or backward.
4. The blade may also be rotated 180 degrees.
a. Disconnect angle cylinder from turntable lug.
b. Rotate Rear Blade clockwise 180 degrees.
c. Reconnect angle cylinder to turntable lug.
IMPORTANT: Make sure angling link is installed
correctly before using the blade. If not the blade and/
or angle cylinder can be damaged.
IMPORTANT: Make sure angle cylinder is installed
correctly before using the blade. If not, the blade
and/or angle cylinder can be damaged.