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Reelmaster 3550- D Hydraulic SystemPage 4 - 123
Removal (Fig. 78)
1. Park machine ona levelsurface. Lower cutting units,
stop engine and engage parking brake. Remove key
from the ignition switch.
2. Read the General Precautions for Removing and
InstallingHydraulic SystemComponents inthischapter.
3. To prevent contamination of hydraulic system during
lift cylinder removal, thoroughly clean exterior of cylin-
der and fittings.
WARNING
Make sure thatthe cutting units are fully lowered
before loosening hydraulic lines from lift cylin-
ders. If cutting units are not fully lowered as hy-
draulic lines are loosened, cutting units may
drop unexpectedly.
NOTE: Toease installation,label the hydraulichoses to
show their c orrect position on the lift cylinder.
IMPORTANT: Before d isconnecting hydraulic
hoses fromlift cylinder, note orientationof hoses to
allow correct assembly (Fig. 79).
4. Disconnect hydraulic hoses from lift cylinder that is
to be removed.
5. Remove retaining ring and flat washer from one end
of the cylinder pin that secures rod end of lift cylinder to
lift arm. Pull pin from lift arm and cylinder rod.
6. Remove washer head screw that secures the pin to
the frame. Remove pin from frame and cylinder barrel
clevis.
7. Remove lift cylinder from m achine.
8. If necessary, remove hydraulic fittings from lift cylin-
der and discard O- rings.
Installation (Fig. 78)
1. If fittings were removed from lift c ylinder, lubricate
and place new O- rings onto fittings. Install fittings into
cylinder port openings using marks made during the re-
moval process to properly orientate fittings. Tighten fit-
tings (see Hydraulic Fitting Installation in this chapter).
2. Position cylinder barrel clevis to frame and insertcyl-
inder pin through the frame and cylinder barrel clevis.
Secure pin with washer head screw.
3. Make sure that flat washer and retaining ring are in-
stalled on one end of the cylinder pin.
4. Position cylinder rod end to lift arm and insert cylin-
der pin through lift arm and cylinder rod end. Secure pin
to lift arm with second flat washer and retaining ring.
5. Attach hydraulic hoses to lift cylinder (see Hydraulic
Hose and Tube Installation in this chapter). Make sure
that hoses are orientated as noted during cylinder re-
moval.
6. Fill reservoir with hydraulic fluid as required.
7. After installation is completed, operate lift cylinder to
verify that lift cylinder, hydraulic hoses and fittings are
not contacted by anything. Make sure that hoses do not
contact square tubeof frame (Fig. 79) duringlift cylinder
operation.
1. RH lift cylinder
2. LH lift cylinder
3. Square tube
Figure 79
2
1
3
Hydraulic
System