Section 3: Adjustments
3/12/21
RCP(M)2760 & RCP(M)3760 Parallel Arm Rotary Cutter 316-548M
39
6. Place a level on the cutter deck to read deck
levelness from front to rear.
7. (See Figure 3-2) Adjust center 3-point link (#3) so
that the front of the cutter deck is slightly lower than
the rear by 1/2" (13 mm).
8. Adjust front gauge wheels to the approximate cutting
height. Cutting height is vertical distance from bottom
of front gauge wheels to the bottom of the front skid
shoe plus 1 1/2" (38 mm).
9. Adjust rear gauge wheel to be the same distance off
the ground as the front gauge wheels.
10. Switch ARM2 and DECK cylinders to float position.
This will allow the cutter deck to be supported by the
gauge wheels.
a. Independent Float Control
:
Change FLOAT detent button on the control stick
from OFF to ON.
Place ARM2 and DECK control levers in float
position.
11. Recheck deck height at the front and rear. Make final
adjustments to level the deck by changing the rear
gauge wheel height until the deck rear is 1/2" (13 mm)
higher than the deck front.
12. Change cutting height by raising or lowering the front
and rear gauge wheels equally until the cutter is set at
the correct cutting height.
13. Recheck deck height at the front and rear. If needed,
adjust rear gauge wheel until deck rear is
1/2" (13 mm) higher than deck front.
IMPORTANT:
Gauge wheels should not touch
ground while adjusting the center 3-point link. If
needed, retract ARM1 cylinder sightly to raise gauge
wheels off the ground.
NOTE:
Cutting height is the measured grass height
after it is cut.
Deck Level Adjustments
Deck level adjustments should be made on a level
surface large enough to cover the area under the tractor
and deck with parallel arms fully extended.
Without Gauge Wheels
Refer to Figure 3-2:
1. Raise tractor 3-point hitch until power take-off
driveline is approximately level.
2. Adjust arm cylinders so that the parallel arms are
approximately 3/4 extended while adjusting the deck
cylinder to maintain deck levelness. Adjust until the
deck is 3 to 4 inches off the ground.
3. Continue adjusting deck cylinder until the deck is
level from left to right.
4. Extend ARM1 cylinder until the skid shoes are
2 to 3 inches off the ground.
5. Place a level (#2) on the cutter deck (#3) to read deck
levelness from front to rear.
6. Adjust center 3-point link (#3) so that the front of the
cutter deck (#1) is slightly lower than the rear by
approximately 1/2" (13 mm).
With Gauge Wheels
Refer to Figure 1-18 on page 26 & Figure 3-2:
1. Make certain tractor control levers are set to center
detent position or the FLOAT detent button on the
Independent control stick is off.
2. Raise tractor 3-point hitch until the driveline is
approximately level.
3. Adjust arm cylinders so that the parallel arms are
approximately 3/4 extended while adjusting the deck
cylinder to maintain deck levelness. Adjust until
gauge wheels are 3 to 4 inches off the ground.
4. Continue adjusting deck cylinder until deck is level
from left to right.
5. Extend ARM1 cylinder until gauge wheels are
1 to 2 inches off the ground.
Deck Level Adjustments
Figure 3-2
27849
3
1
Rear
Front
Driveline
Cutter deck
Cutting height
X
2
X
+
1
/2
" (
13
m
m
)