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Section 1: Assembly & Set-up
Driveline Clearance Check
Check driveline for adequate clearance under all ranges
of cutter height.
NOTE: The lift cylinders should raise the cutter up
while pushing the control lever forward and lower
while pulling the lever back. Switch connections at
the duplex outlet if lift control lever works opposite.
1.
With driveline attached to the tractor, slowly raise and
lower cutter to its upper and lower limits while
observing clearances between hitch and driveline.
2. Adjust tractor drawbar height and length if driveline
interferes. See "Drawbar Set-up" on page 13 for
correct placement of tractor drawbar.
3. Cycle hydraulic lift system several times to purge
hydraulic lift system of trapped air. See "Purge
Hydraulic System" on this page.
Purge Hydraulic System
Refer to Figure 1-22:
!
DANGER
To avoid serious injury or death:
Never remove or install a folding wing cylinder with cylinder
rod retracted and wing folded up. The wing is unstable without
its folding cylinder and can suddenly fall. Also, air trapped in
a new or repaired cylinder will drop the wing suddenly when
lowering the wing. Either situation can render the cutter
inoperable and cause serious bodily injury or death.
24
RC3620 & RCM3620 Rotary Cuters 330-841M
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!
WARNING
To avoid serious injury or death:
Be sure center and wing decks are lowered to the ground and
all hydraulic pressure is relieved before disconnecting any
hydraulic lines or fittings to purge the hydraulic system.
Be sure tractor reservoir is filled properly before
operating hydraulic cylinders. If tractor reservoir is low on
hydraulic fluid, there is a chance of drawing air into the
system causing jerky or uneven cylinder movements.
The wing deck lift cylinder may be purged as follows:
1.
With wings lowered to the ground, shut tractor off and
move hydraulic control lever for the wings back and
forth to relieve all hydraulic pressure.
2. Loosen hydraulic hoses (#3) slightly at each wing
cylinder elbow (#2) to allow air and fluid to escape.
3. Restart tractor. Slowly activate tractor control lever to
retract wing cylinders and to purge trapped air.
4. Once air is purged from the hydraulic system for the
wing cylinders, tighten hydraulic hose fittings. at
elbows (#2).
Wing Folding Cylinders
Figure 1-22
33913
9/25/18
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