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Section 1: Assembly & Set-up
RC2512 Series 2 S/N Rotary Cutters 330-725M
10/7/21
Purge Hydraulic System
Refer to Figure 1-12:
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.
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.
Purge right-hand wing cylinder (#2) first and then the left-
hand wing folding cylinder (#3). The center deck lift
cylinder will purge as the wing folding cylinders are being
purged:
1. Start tractor and raise center deck fully up.
2. Put tractor in park or set park brake, turn off engine,
and remove switch key before dismounting tractor.
3. Remove all stroke control spacers (#6). Store stroke
control spacers in a safe location where they can be
retrieved later.
4. Start tractor and lower center deck and both wings
until all decks are resting on their skid shoes.
NOTE:
Do not loosen hydraulic hose
fittings (#7 or #8). Hydraulic fluid will pass through
deck lift cylinder (#5) to the wing cylinders.
5. Shut tractor down properly before dismounting. Refer
to
6. Slightly loosen hydraulic hose fitting (#2) on the right-
hand wing cylinder (#1) to allow air to escape.
7.
Start tractor and slowly activate tractor control lever
to retract and extend all three hydraulic cylinders (#1,
#3, & #5) until all trapped air is purged from wing lift
cylinder (#1).
8. Lower center deck and both wings until all decks are
resting on their skid shoes.
9. Shut tractor down properly before dismounting.
10. Tighten hose fitting (#2) after all air is purged from
cylinder (#1).
11. Repeat steps 6-10 above to purge the left-hand wing
cylinder (#3) through fitting (#4).
Unhook Rotary Cutter
on page 42 if parking
cutter for long periods and end of season.
2. If power take-off is engaged, idle engine, then
disengage power take-off.
3. Park cutter on a level, hard surface. Place tractor
gear selector in park or in neutral and set park brake.
4. Wait for blades to come to a complete stop and then
fold wings up to transport position.
5. Shut tractor engine off and remove switch key before
dismounting from tractor.
6. Lock wings in transport position with transport locks
and hairpin cotters. Refer to
NOTE:
Center deck will raise fully up before wing
cylinders will start to fold wings up.
Purge Wing cylinders & Deck Lift Cylinder
Figure 1-12