Land Pride GS25 Series, Руководство оператора

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Section 2: Adjustments
Table of Contents
3/14/23 GS2572, GS2584 & GS2596 Grading Scrapers 303-268M
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Section 2: Adjustments
Level Scraper
WARNING
!
To avoid serious injury or death:
Always keep your body extremities out from under the
implement. Hydraulics can drop the implement if a line burst
or if lift controls are accidentally actuated.
The Grading Scraper should be leveled from left to right
and front to back.
1. Park tractor. See
“Tractor Shutdown Procedure” on
page 13
2. Manually adjust one lower lift arm on the tractor up or
down to level the Grading Scraper from left to right.
3. Manually adjust length of top-center-link to level
scraper from front to rear.
Blade Height Adjustment
Refer to Figure 2-1:
WARNING
!
To avoid serious injury or death:
Always keep your body extremities out from under the blade
carrier when adjusting cutting blade height. The Blade carrier
will fall while loosening its bolts.
Blade carrier (#2) can be lowered or raised equally on
both sides of the scraper to grade a surface level.
Position cutting edges even with the bottom of skid shoes
for non-aggressive grading action or adjust cutting edges
downward to 1 1/2" (3.8 cm) cutting depth for highly
aggressive cutting action. The most commonly used
cutting depth is 1/4" (6 mm) below skid shoes.
Blade carrier (#2) can be lowered on the right side more
than the left side to grade a crown in the middle of a
roadway.
Initial Preparation
Refer to Figure 2-1:
1. Park Grading Scraper on a level hard surface such as
a concrete pad. Place gear selector in park and/or
set brakes.
2. Lower scraper until it is resting on the hard surface,
shut engine off and remove switch key.
3. Loosen bolts (#3) on both ends of blade carrier (#2).
Do not remove bolts (#3) or their nuts.
4. Restart tractor and raise scraper several inches off
the hard surface using tractor 3-point control lever.
5. Shut tractor engine off and remove switch key.
6. Place one long shim (#5) equal in thickness to the
cutting depth under each skid shoe (#1). Do not use
shims if cutting depth is 0 inches.
NOTE:
Cutting depth is vertical distance from
bottom of skid shoe to bottom of cutting blades.
Blade Height Adjustment (Left-Hand Side Shown)
Figure 2-1
Lower Cutter Blades
1. Complete “Initial Preparation” on this page.
2. Restart tractor and operate 3-point control lever to
slowly lower skid shoes (#1) onto shims (#5).
3. Shut tractor engine off and remove switch key.
4. Make sure skid shoes (#1) are resting on shims (#5)
and blades (#4) are resting on the hard surface at
both ends of the scraper.
5. Tighten 5/8"-11 GR8 bolts (#3) to the correct torque.
Raise Cutter Blades
1. Complete “Initial Preparation” on this page.
2. Restart tractor and operate 3-point control lever to
slowly lower scraper until skid shoes (#1) are resting
on shims (#5). These shims should be thinner than
current cutting depth.
3. Make sure skid shoes (#1) are resting on shims (#5)
and cutter blades (#4) are resting on the hard surface
at both ends of the scraper.
4. Tighten 5/8"-11 GR5 bolts (#3) to the correct torque.
Adjust Cutter Blades to Grade a Crown
1. Complete steps 1-5 under
“Initial Preparation”
on
this page.
2. Place under the
left-hand skid shoe (#1) and cutter
blades (#4) a shim (#5) equal in thickness to the
cutting depth.
3. Place under the right-hand skid shoe (#1) (right-
hand not shown)
a second shim (#5) equal to the
thickness of the previous shim. Make sure this shim
does not extend under the blade carrier frame (#2).
4. Restart tractor and operate 3-point control lever to
slowly lower unit onto shims (#5)
5. On the left side, check to make sure skid shoes (#1)
and cutter blades (#4) are resting on shim (#5).
6. On the right-hand side (not shown), check to make
sure skid shoe (#1) is resting on shim (#5) and cutter
blades (#4) are resting on the hard surface.
7. Tighten 5/8"-11 GR5 bolts (#3) to the correct torque.
8. Make all grading passes with middle-of-roadway on
the left-hand side of the scraper.
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